Keysight Truevolt Series Operating And Service Manual
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Keysight Truevolt Series Operating And Service Manual

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Table of Contents

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Operating and
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Keysight Truevolt Series
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Summary of Contents for Keysight Truevolt Series

  • Page 1 Operating and Service Guide Keysight Truevolt Series Digital Multimeters...
  • Page 2 Notice: This document contains references to Agilent Tech- nologies. Agilent's former Test and Measurement business has become Keysight Technologies. For more information, go to www.keysight.com.

  • Page 3: Table Of Contents

    Calibration Procedures Introduction to the Instrument Instrument at a Glance Display – Easily display, save and document your measurement results Measurements – Keysight’s Truevolt measurement performance with modern I/O accessibility Programming Language Front Panel at a Glance Front Panel Keys...
  • Page 4 Trigger delay and multiple samples Storing and clearing readings Probe Hold Math - Introduction Math - Null Math - dB/dBm Scaling Math - Scaling Math - Smoothing Math - Statistics Math - Limits Keysight True volt Series Operating and Service Guide...
  • Page 5 Autozero On/Off Making High–Speed AC Measurements Making High–Speed DC and Resistance Measurements Capacitance Capacitance Measurement Considerations Digitizing Measurements The Sampling Rate Level Triggering About Digitize Mode Data Log and Digitizing Local Remote Interaction Keysight True volt Series Operating and Service Guide...
  • Page 6 UNIT:TEMPerature {C|F|K}UNIT:TEMPerature? CALCulate Subsystem Introduction CALibration Subsystem CONFigure Subsystem DATA Subsystem DISPlay Subsystem FORMat Subsystem HCOPy Subsystem IEEE 488.2 Common Commands LXI Subsystem MEASure Subsystem MMEMory Subsystem - General Purpose File Management Keysight True volt Series Operating and Service Guide...
  • Page 7 Query Errors (-400…) Network Errors (+100...) Instrument Errors (+200…) Miscellaneous Errors (+300... and +500..) Licensing and Self-test Errors (+600...) Calibration Errors (+700...) Miscellaneous Errors (+800...) Power-On and Reset State Factory Default Settings Keysight True volt Series Operating and Service Guide...
  • Page 8 Calibration Adjustment Procedures Calibration Procedures Input Connections Test Considerations Recommended Test Equipment Calibration Adjustment Process Gain Calibration Adjustment Overview Gain and Flatness Calibration Adjustment Overview Entering Calibration Values and Storing Calibration Constants Calibration Security Keysight True volt Series Operating and Service Guide...
  • Page 9 DC Voltage Gain Calibration Ohms Gain Calibration DC Current Gain Calibration DC High Voltage Gain Calibration AC Current 10 A Gain Calibration DC Current 10 A Gain Calibration Capacitance Offset Calibration (Optional) Finishing Calibration Index Keysight True volt Series Operating and Service Guide...

  • Page 10: Safety And Regulatory Information

    Keysight shall not be liable for errors or for incidental or consequential damages in connection with the fur- nishing, use, or performance of this document or of any information contained herein. Should Keysight and the user have a separate written agreement with warranty terms covering the material in this doc- ument that conflict with these terms, the warranty terms in the separate agreement shall control.

  • Page 11: Restricted Rights Legend

    U.S. Government Restricted Rights. Software and technical data rights granted to the federal government include only those rights customarily provided to end user customers. Keysight provides this customary commercial license in Software and technical data pursuant to FAR 12.211 (Technical Data) and 12.212 (Computer Software) and, for the Department of Defense, DFARS 252.227-7015 (Technical Data –...

  • Page 12: Safety Notices

    This product is marked with the ACMA RCM mark for compliance in Australia / New Zealand. A copy of the Manufacturer’s Australia Declaration of Conformity for this instrument can be obtained by contacting your local Keysight Technologies Sales Representative. ISM 1-A This text indicates that the instrument is an Industrial Scientific and Medical Group 1 Class A product (CISPR 11, Clause 4).

  • Page 13: Safety Information

    AC power. Use only the Keysight specified power cord for the country of use or one with equivalent ratings. Keysight True volt Series Operating and Service Guide...
  • Page 14 300 VAC. To avoid the danger of electric shock, do not connect the inputs to AC mains power for line voltages above 300 VAC. See for further IEC Measurement Category II information. Keysight True volt Series Operating and Service Guide...

  • Page 15: Measurement Limits

    3000 meters, and at temperatures between 0 and 55 °C. Measurement Limits The Truevolt Series DMMs provide protection circuitry to prevent damage to the instrument and to protect against the danger of electric shock, provided the Measurement Limits are not exceeded. To ensure safe...
  • Page 16 Safety and Regulatory Information 34460A Front Panel Terminal Area 34461A, 34465A, 34470A Front Panel Terminal Area 34461A, 34465A, 34470A Rear Panel Terminal Area Keysight True volt Series Operating and Service Guide...

  • Page 17: Input Terminal Measurement Limits

    The user-replaceable 3 A current-protection fuse is on the rear panel. There are 3 A and 10 A (34461A, 34465A and 34470A) current-protection fuses located inside the unit. Contact your Keysight Sales and Service Center or refer to product service documentation for replacement instructions.

  • Page 18: Iec Measurement Category Ii

    The Fine Tip, Mini Grabber, and SMT Grabber attachments plug onto the probe end of the Test Leads. Maintenance If any portion of the Test Lead Set is worn or damaged, do not use. Replace with a new Keysight 34138A Test Lead Set.

  • Page 19: Declaration Of Conformity

    Safety and Regulatory Information Declaration of Conformity Declarations of Conformity for this product and for other Keysight products may be downloaded from the Keysight Regulatory Web site: http://regulations.products.keysight.com/DoC/search.htm Keysight True volt Series Operating and Service Guide...

  • Page 20: Welcome

    Welcome Welcome This Operating and Service Guide contains information for using, programming, and servicing the Keysight True volt Series Digital Multimeters (DMMs). If you have feedback on this document, please go to www.key- sight.com/find/truevolt-docfeedback. Introductory Information Safety and Regulatory Information...

  • Page 21: Scpi Programming Reference

    Self-Test Procedures Battery Replacement Installing the Optional GPIB Interface User Replaceable Parts Performance Verification Performance Verification Calibration Procedures Calibration Procedures 34460A and 34461A Calibration Procedures 34465A and 34470A Calibration Procedures Firmware Update Keysight True volt Series Operating and Service Guide...

  • Page 22: Introduction To The Instrument

    Introduction to the Instrument Introduction to the Instrument The Keysight Technologies 34460A/61A/65A instruments are 6½-digit digital multimeters (DMMs); the 34470A is a 7½-digit DMM. Instrument at a Glance Front Panel at a Glance Rear Panel at a Glance Models and Options...

  • Page 23: Front Panel At A Glance

    [Shift] before pressing the key. For example, if you press and release [Shift] before pressing [Display] , you will access the [Utility] function: Keysight True volt Series Operating and Service Guide...

  • Page 24: Rear Panel At A Glance

    3 A Current Terminal Fuse 3 A Current Terminal (34461A/65A/70A only) Voltmeter Measurement Complete Output External Trigger Input Local Area Network (LAN) Connector USB Interface Connector Instrument Cable Lock Chassis Ground Screw AC Mains Input Keysight True volt Series Operating and Service Guide...

  • Page 25: Models And Options

    Rear panel LAN/LXI web interface, external triggering for Standard Standard Standard 34460A. 34460A- 34461A- 34465A- 34470A- NISPOM and file security for Truevolt series DMMs license. 34460A- 34461A- 34465A- 34470A- User-installable GPIB interface module 34460A- *N/A - *N/A - *N/A -...

  • Page 26: Remote Interface Configuration

    Connectivity Software The instrument ships with the Keysight Automation-Ready CD. This CD contains Keysight IO Librar- ies Suite software, which must be installed to enable remote-interface operations. The CD auto-starts and provides information on installing the software. Also includes Keysight Technologies USB/LAN/GPIB Connectivity Guide , which contains additional information.

  • Page 27: Lan Configuration

    If you change this parameter, you must either press the Apply Changes softkey (front panel) or send SYSTem:COMMunicate:LAN:UPDate (remote interface) for the change to take effect. To manually set an IP address, Subnet Mask, or Default Gateway, turn DHCP off, then change the IP setup as described below. Keysight True volt Series Operating and Service Guide...
  • Page 28 (for example: 255.255.0.0). SCPI: SYSTem:COMMunicate:LAN:SMASk "< mask >" If you change this parameter, you must either press the Apply Changes softkey (front panel) or send SYSTem:COMMunicate:LAN:UPDate (remote interface) for the change to take effect. Keysight True volt Series Operating and Service Guide...
  • Page 29 (remote interface) for the change to take effect. Domain Name A domain name is a registered Internet name that gets translated into an IP address. You cannot set it from the front panel or SCPI. Keysight True volt Series Operating and Service Guide...

  • Page 30: Web Interface

    Re-selecting the LAN Settings page will display the new settings if a LAN restart took place. Web Interface The instrument includes a built-in Web Interface for remote instrument access and control over LAN via a Web browser. For details, see Interface. Keysight True volt Series Operating and Service Guide...

  • Page 31: Lan Configuration Procedure

    "nnn.nnn.nnn.nnn" where "nnn" in each case is a byte value in the range 0 through 255. You can enter a new IP address using the front panel arrow keys. Do not enter leading zeros. Keysight True volt Series Operating and Service Guide...

  • Page 32: More About Ip Addresses And Dot Notation

    "192.168.020.011" is actually equivalent to decimal "192.168.16.9" because ".020" is inter- preted as "16" expressed in octal, and ".011" as "9". To avoid confusion, use only decimal values from 0 to 255, with no leading zeros. Keysight True volt Series Operating and Service Guide...

  • Page 33: Firmware Update

    SYSTem:IDENtify to set the *IDN? to match the actual model number, update the firmware, and then use SYSTem:IDENtify again to set the *IDN? response to the other model number. Keysight True volt Series Operating and Service Guide...

  • Page 34: Contacting Keysight Technologies

    Introduction to the Instrument Contacting Keysight Technologies You can contact Keysight Technologies for warranty, service, or technical support. In the United States: (800) 829-4444 In Europe: 31 20 547 2111 In Japan: 0120-421-345 www.keysight.com/find/assist to contact Keysight worldwide, or contact your Keysight Technologies rep- resentative.

  • Page 35: Quick Start

    Use Built-in Help System Rack Mount the Instrument Prepare Instrument for Use Verify that you received the following items. If anything is missing, please contact your nearest Keysight sales office or Keysight authorized reseller. Power cord (for country of destination)

  • Page 36: Setting The Ac Mains Line Voltage Selector And Fuse Installation

    Use only a 5x20 mm, time-lag, 0.25 A, 250 V certified fuse. The Keysight part number is 2110-0817. AC MAINS Nominal Line Voltage AC Mains Line Voltage...
  • Page 37 Use only a 5x20 mm, time-lag, 0.25 A, 250 V certified fuse. The Keysight part number is 2110-0817. Step 4 Replace the fuse holder assembly by sliding it into the rear panel.

  • Page 38: Connect Power And I/O Cables

    If you turn off the instrument by disconnecting power (this is not recommended), the instrument turns on as soon as you re-apply power. You will not need to press the power switch. Keysight True volt Series Operating and Service Guide...

  • Page 39: Adjust The Carrying Handle

    Quick Start Adjust the Carrying Handle The handle has three positions, shown below. To adjust the handle position, grasp the sides of the handle, pull outward, and rotate the handle. Keysight True volt Series Operating and Service Guide...

  • Page 40: Use Built-In Help System

    Press and hold any softkey or button, such as [Display] . If the message contains more information than will fit on the display, press the down arrow softkey to scroll down. Press Done to exit Help. Keysight True volt Series Operating and Service Guide...

  • Page 41: View The List Of Help Topics And Use Interactive Demos

    Then press Select . You can also press Demos to run interactive demos on how to use the instrument. In this case, the following help topic appears: Keysight True volt Series Operating and Service Guide...

  • Page 42: View The List Of Recent Instrument Errors

    French, German, Japanese, Korean, and Russian. To select the local language, press [Utility] > System Setup > User Settings > Help Lang . Then select the desired lan- guage. The menu softkey labels and status line messages are not translated. Keysight True volt Series Operating and Service Guide...

  • Page 43: Rack Mount The Instrument

    You can mount the instrument in a standard 19-inch rack cabinet using one of two optional kits, each of which includes instructions and mounting hardware. You may also mount Another Keysight System II instrument of the same height and width beside the instrument.

  • Page 44: Sliding Support Shelf

    Quick Start Sliding Support Shelf To install one or two instruments in a sliding support shelf, order shelf 5063-9255 and slide kit 1494- 0015. For a single instrument, also order filler panel 5002-3999. Keysight True volt Series Operating and Service Guide...

  • Page 45: Features And Functions

    Probe Hold Math Menu Display Menu Utility Menu Web Interface Throughout this document, "default" states and values are identified. These are the power-on default states when the instrument is shipped from the factory. Keysight True volt Series Operating and Service Guide...

  • Page 46: Continuous, Data Log, And Digitize Modes

    (readings). The figure below shows the result of digitizing a sine wave. This chapter discusses the various ways to digitize signals. The importance of the sampling rate, and how to use level triggering. Keysight True volt Series Operating and Service Guide...

  • Page 47: Data Log And Digitize Mode Default Settings

    Samples per trigger is set according to the data log duration (time or samples). Sample timer is put in timer (not immediate) mode and sample time is set according to the data log sample interval. Keysight True volt Series Operating and Service Guide...

  • Page 48: Additional Digitize Default Settings

    On return to Continuous mode, settings are left as done in data log or digitize mode except: Sample source is set to immediate. Pretrigger count is set to 0. Samples per trigger is set to 1. Trigger count is set to infinite. Keysight True volt Series Operating and Service Guide...

  • Page 49: Front Panel Menu Reference

    Terminals: 3 A or 10 A Range: Auto, 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A, or 10 A (when terminals set to 10 A) Filter: >3 Hz, >20 Hz, >200 Hz Keysight True volt Series Operating and Service Guide...
  • Page 50 Gate Time: 10 ms, 100 ms (default), or 1 s Timeout: 1 s (default) or Auto Configure capacitance measurements: Range: 1 nF, 10 nF, 100 nF, 1 µF, 10 µF, 100 µF, or Auto (default) Keysight True volt Series Operating and Service Guide...
  • Page 51 Auto Zero: Off or On (default) (2-wire measurements only; not available for 4-wire measurements) OffstComp: Off (default) or ON. (RTD 2-wire and RTD 4-wire measurements only) Open Check: TCouple measurements only.* Units: °C, °F, or K Start and stop measurements. Keysight True volt Series Operating and Service Guide...
  • Page 52 Return to local control of the instrument (when in Remote mode), or indicate that the next front panel key will be "shifted", for example [Probe Hold] instead of [Single]. Keysight True volt Series Operating and Service Guide...

  • Page 53: [Acquire] Key

    / dBm (34460A/61A only) Configure dB, dBm Scaling (34465A/70A only) Configure scaling: dB, dBm, %, Mx-B Statistics Enable, disable, and clear statistics. Limits Enable or disable high and low limits. [Display] key Keysight True volt Series Operating and Service Guide...

  • Page 54: [Utility] Key

    I/O Config Configure LAN (optional on 34460A), USB, and GPIB (optional) interfaces. Test/Admin Perform self-test, calibration, security, license, and firmware update tasks. System Setup Set user preferences, date and time, and power-on message. Keysight True volt Series Operating and Service Guide...

  • Page 55: Measurements

    Features and Functions Measurements The Keysight True volt DMMs support many common measurements: DC Voltage AC Voltage DC Current AC Current Resistance Temperature Capacitance Continuity Diode Frequency and Period Data Logging Digitizing Level Triggering Keysight True volt Series Operating and Service Guide...

  • Page 56: Dc Voltage

    For the 34460A/61A , press Aperture and choose the number of power-line cycles (PLCs) to use for the measurement. Only 1, 10, and 100 PLC provide normal mode (line frequency noise) rejection. Selecting 100 PLC provides the best noise rejection and resolution, but the slowest measurements: Keysight True volt Series Operating and Service Guide...
  • Page 57 It also leads to readings with less noise than the HighZ option, which is included for situations where the 10 MΩ load is significant. Keysight True volt Series Operating and Service Guide...
  • Page 58 ±12 VDC. The reference voltage is always autoranged, and the range used for both will be based on the larger result of these two measurements. Configure DCV Ratio measurements as shown: Keysight True volt Series Operating and Service Guide...

  • Page 59: Ac Voltage

    ACV function with the signal already connected. If the DC bias remains constant, subsequent measurements can be made to full accuracy without additional settling delays. Step 1: Configure the test leads as shown. Step 2: Press [ACV] on the front panel. Keysight True volt Series Operating and Service Guide...
  • Page 60 For accurate displayed statistics of AC measurements in Front Panel mode, the default manual trigger delay ( [Acquire] > Delay Man ) must be used. Keysight True volt Series Operating and Service Guide...

  • Page 61: Dc Current

    Step 4 (34461A/65A/70A only): The 3A terminals are selected by default. The Terminals softkey toggles between the 3 A terminals and the 10 A input terminals. When you change this to 10 A, the measurement range automatically becomes 10 A. Keysight True volt Series Operating and Service Guide...
  • Page 62 (Off), the DMM measures the offset once and subtracts the offset from all subsequent meas- urements. The DMM takes a new offset measurement each time you change the function, range, or integ- ration time. ( There is no autozero setting for 4-wire measurements.) Keysight True volt Series Operating and Service Guide...

  • Page 63: Ac Current

    3 A terminals and the 10 A input terminals. When you change this to 10 A, the measurement range automatically becomes 10 A. When making measurements using the 10A terminals, the presence of a signal on the 3A ter- minals can cause significant errors. Keysight True volt Series Operating and Service Guide...
  • Page 64 For accurate displayed statistics of AC measurements in Front Panel mode, the default manual trigger delay ( [Acquire] > Delay Man ) must be used. Keysight True volt Series Operating and Service Guide...

  • Page 65: Resistance

    (PLCs) to use for the measurement . 1, 10, and 100 PLC provide normal mode (line frequency noise) rejection. Selecting 100 PLC provides the best noise rejec- tion and resolution, but the slowest measurements: Keysight True volt Series Operating and Service Guide...
  • Page 66 DUT. With low power On, pressing Range displays the lower current sourced for each range: Low-power resistance measurements apply to the 100Ω through 100kΩ ranges only. The 1 MΩ through 1 GΩ ranges source the same current regardless of the low-power setting. Keysight True volt Series Operating and Service Guide...
  • Page 67 Under the same conditions, the 34401A returns the measurement’s absolute value so as to prevent the confusion associated with negative readings. The Keysight True volt Series DMMs will return negative val- ues. This allows the most accurate results after a NULL operation.

  • Page 68: Temperature (34460A And 34461A)

    Step 3: Press Probe and choose the probe type. If you choose to use an RTD, the menu will have a softkey to specify the RTD's resistance at 0 degrees Celsius (R Keysight True volt Series Operating and Service Guide...
  • Page 69 Only 1, 10, and 100 PLC provide normal mode (line frequency noise) rejection. Selecting 100 PLC provides the best noise rejection and resolution, but the slowest measurements: Step 6: Use the Units softkey to display temperature in degrees Celsius, degrees Fahrenheit, or Kelvin. Keysight True volt Series Operating and Service Guide...

  • Page 70: Temperature (34465A And 34470A)

    Requirements), and type E, J, K, N, R, or T thermocouples. This section describes general temperature measurement configuration information. For a detailed tutorial on temperature measurements, refer to Keysight Application Note 290 Practical Tem- perature Measurements available at www.keysight.com. Step 1: Configure the test leads as shown.
  • Page 71 Low Power : Disables (Off) or enables (On) low power measurements. The low power mode sources less test current per measurement range than is normally sourced for standard resistance measurements, to reduce power dissipation and self-heating in the probe. Press Done to return to the main temperature menu. Keysight True volt Series Operating and Service Guide...
  • Page 72 ( There is no autozero setting for 4-wire measurements.) Thermistor Requirements The DMM converts the measured thermistor resistance to temperature using the Steinhart-Hart ther- mistor equation: 1⁄T = A + B (Ln(R)) + C (Ln(R)) Where: Keysight True volt Series Operating and Service Guide...
  • Page 73 For example, if the measured internal temperature is +20.68 °C and the specified offset is +5 °C, the arti- ficial cold junction mathematics uses the sum of the two values. Keysight recommends that the offset be left at 0 unless metrology has indicated otherwise.
  • Page 74 If an open connection is detected (greater than 5 kΩ on the 10 kΩ range), the instrument reports an overload condition. For more information about making temperature measurements refer to Keysight Application Note 290 Practical Temperature Measurements available at www.keysight.com.

  • Page 75: Capacitance

    If you apply a DC voltage or a short to the input terminals in capacitance measurement mode, the instrument reports an overload. Keysight True volt Series Operating and Service Guide...

  • Page 76: Continuity

    Continuity measurements behave as follows: ≤ 10 Ω displays measured resistance and beeps (if beeper enabled) 10 Ω to 1.2 kΩ displays measured resistance without beeping > 1.2 kΩ displays OPEN with no beep Keysight True volt Series Operating and Service Guide...

  • Page 77: Diode

    0 to 5 V voltage displayed on the front panel, and instrument beeps when signal transitions into the 0.3 to 0.8 V threshold (if beeping is enabled) > 5 V the front panel displays OPEN, and SCPI returns 9.9E37 Keysight True volt Series Operating and Service Guide...

  • Page 78: Frequency And Period

    For example, when measuring a signal between 20 and 200 Hz, use the 20 Hz fil- ter. If measurement speed is not an issue, choosing a lower frequency filter may result in quieter meas- urements, depending on the signal that you are measuring. Keysight True volt Series Operating and Service Guide...
  • Page 79 DUT failure may result in no signal; in this case, the failure can be detected sooner, speeding up test throughput. For accurate displayed statistics of AC measurements in Front Panel mode, the default manual trigger delay ( [Acquire] > Delay Man ) must be used. Keysight True volt Series Operating and Service Guide...

  • Page 80: Data Logging

    Data Logging Overview This section is a summary of the steps involved in setting up data logging. Detailed steps are described below in Detailed Data Logging Steps. Keysight True volt Series Operating and Service Guide...
  • Page 81 Step 2: Press [Acquire] on the front panel to display these softkeys: Press the Acquire softkey. Press the Data Log softkey. The Data Log menu opens: Step 3: Press Sample Interval and specify the time interval between samples (readings). Keysight True volt Series Operating and Service Guide...
  • Page 82 (see Step 7 below). The number of readings you can store in memory depends on the amount of instrument memory. With the MEM option, the limit is 2,000,000 readings. Without the MEM option, the limit is 50,000 readings. Keysight True volt Series Operating and Service Guide...
  • Page 83 Separator - Specifies the character (Comma, Tab, or Semicolon) to use for separating the information on each row. When finished configuring reading storage, press Done > Done to return to the main data logging menu. Keysight True volt Series Operating and Service Guide...
  • Page 84 Options as described above in Step 6. Trend Chart for Data Logging The Trend Chart is particularly useful for viewing data logging measurements. See Trend Chart (Digitize and Data Log Modes) for details. Keysight True volt Series Operating and Service Guide...

  • Page 85: Digitizing

    [Utility] > I/O Config . To view the status of a data logging or digitizing operation remotely, use the instrument’s Web User Interface. The Web User Interface monitor does not set the instrument to remote. Keysight True volt Series Operating and Service Guide...
  • Page 86 Detailed Digitizing Steps Step 1: To digitize DC voltage, press DCV and configure the test leads as shown. To digitize DC current, press DCI and configure the test leads as shown. Keysight True volt Series Operating and Service Guide...
  • Page 87 (Hz), or press the Sample Rate softkey to specify a sample interval (time between samples): Step 4: Press the Duration softkey to specify the length of time to digitize: or, press Duration again to specify the total number of samples to digitize: Keysight True volt Series Operating and Service Guide...
  • Page 88 When the trigger event occurs, the buffered readings are transferred to reading memory and the remaining readings Keysight True volt Series Operating and Service Guide...
  • Page 89 X and Y cursors (shown below), tracking cursors, pan control, and zoom allow you to analyze digitized data. See Trend Chart (Digitize and Data Log Modes) for details. Keysight True volt Series Operating and Service Guide...

  • Page 90: Level Triggering

    To increase trigger level accuracy and reduce sensitivity (avoid false triggers due to noise), use autorange: When auto-range is enabled, trigger level accuracy is increased, latency is increased, and sensitivity is decreased as the aperture or NPLC setting is increased. Keysight True volt Series Operating and Service Guide...
  • Page 91 Frequency and period considerations Trigger level accuracy is increased, latency is increased, and sensitivity is decreased as gate time is increased. Fixed voltage range eliminates uncertainties (due to range change) in trigger latency. Keysight True volt Series Operating and Service Guide...

  • Page 92: Secondary Measurements

    Pre-Math , Peak, Pre-Math Frequency , Frequency, Pre-Math Frequency Period Period, ACV, Pre-Math Period Frequency Frequency, ACV, Pre-Math Temperature Sensor Sensor, Pre-Math Ratio Input/Ref Input/Ref, Pre-Math Capacitance Pre-Math Cont None Diode None Keysight True volt Series Operating and Service Guide...
  • Page 93 After making one or more primary measurements for approximately 4 seconds, the DMM makes one secondary measurement. For the Peak secondary measurement, the Clear Peaks softkey allows you to clear the accumulated his- tory of the peak-to-peak function (resets the record of peak values). Keysight True volt Series Operating and Service Guide...

  • Page 94: Triggering And Readings

    Auto - the instrument continuously takes measurements, automatically issuing a new trigger as soon as a measurement is completed. Single - the instrument issues one trigger each time the front panel [Single] key is pressed. Keysight True volt Series Operating and Service Guide...
  • Page 95 /Stop] stops and resumes measurements, and pressing [Single] switches the instrument to single trigger mode. In the Single and Ext modes, pressing [Run/Stop] stops readings if they are in progress, or switches the mode to Auto if readings are stopped. Keysight True volt Series Operating and Service Guide...

  • Page 96: Trigger Delay And Multiple Samples

    (the trigger delay affects only the start of the first sample). Integration time and autoranging affect the sampling time for each sample, but not the sample interval. Periodic sampling continues until the sample count (set with the Samples/Trig softkey) is satisfied. Keysight True volt Series Operating and Service Guide...

  • Page 97: Storing And Clearing Readings

    Separator - Specifies the character (Comma, Tab, or Semicolon) to use for separating the information on each row. When finished configuring reading storage, press Done > Save Readings to save the readings in memory to a file. Keysight True volt Series Operating and Service Guide...
  • Page 98 Changing samples per trigger or trigger delay Changing display modes Changing the VM Comp output polarity Changing the digit mask Changing the histogram, bar meter, or trend chart scale Changing user preferences Executing self-test Keysight True volt Series Operating and Service Guide...

  • Page 99: Probe Hold

    Probe Hold is a front panel only function. Readings recorded in Probe Hold mode cannot be accessed from remote. You can, however, take a screen capture of the probe hold display, see Utility Menu - Man- age Files for details. Keysight True volt Series Operating and Service Guide...

  • Page 100: Math - Introduction

    The [Math] key is the shifted [Null] : These math functions are available for the 34460A/61A: Null dB/dBm Scaling Statistics Limits These math functions are available for the 34465A/70A: Null Smoothing Filter Scaling Statistics Limits Keysight True volt Series Operating and Service Guide...

  • Page 101: Math - Null

    To turn off the null feature, press [Null] again or press [Math] and set the first softkey to Off . See Also Math - Introduction dB/dBm Scaling Statistics Limits Keysight True volt Series Operating and Service Guide...

  • Page 102: Math - Db/Dbm Scaling

    The relative value must be from -200 to +200 dBm (default 0). You can either measure this value by press- ing Measure Ref Value , or you can enter a specified value. Keysight True volt Series Operating and Service Guide...
  • Page 103 (default), 800, 900, 1000, 1200, or 8000 Ω. Press Ref R and use the front panel up and down arrows to make your selection. See Also Math - Introduction Null Statistics Limits Keysight True volt Series Operating and Service Guide...

  • Page 104: Math - Scaling

    The relative value must be from -200 to +200 dBm (default 0). You can either measure this value by press- ing Measure Ref Value , or you can use the dB Ref Value softkey to specify a value. dB scaling applies to ACV and DCV measurements only. Keysight True volt Series Operating and Service Guide...
  • Page 105 The User Units softkey allows you to specify the custom alphanumeric label of up to four characters (for example, RPM or °C) for Mx-B scaled measurements. Mx-B scaling applies to all measurement functions except Ratio, Continuity, and Diode. Keysight True volt Series Operating and Service Guide...
  • Page 106 Features and Functions See Also Math - Introduction Null Statistics Limits Keysight True volt Series Operating and Service Guide...

  • Page 107: Math - Smoothing

    ( If all readings are within the allowable variation from the readings in the filter, the filter icon will be solid green ( Keysight True volt Series Operating and Service Guide...

  • Page 108: Math - Statistics

    The average and standard deviation are not shown if dB or dBm scaling is in use. Remarks The Span value is the Max minus the Min . Press Clear Readings to clear reading memory and re-start statistics calculation. See Also Math - Introduction Null dB/dBm Scaling Limits Keysight True volt Series Operating and Service Guide...

  • Page 109: Math - Limits

    The Beeper softkey enables or disables beeping when limits are violated (this also enables or disables the beeper for the other functions that use the beeper - probe hold, diode, continuity, and errors. Clear Condi- tion resets the limit borders to green, as described below. Keysight True volt Series Operating and Service Guide...
  • Page 110 Because the limit is 10 V, the 9.994 VDC value is shown with the stand- ard background. In contrast, the 11.083 VDC reading is highlighted in red to indicate that it is outside the limits. Keysight True volt Series Operating and Service Guide...
  • Page 111 FAIL indicates that a limit has been exceeded. Number The bright red color (shown below) indicates that the displayed measurement exceeds the limits. The Num- ber display also indicates how many times the limits have been exceeded. Keysight True volt Series Operating and Service Guide...
  • Page 112 Features and Functions See Also Math - Introduction Null dB/dBm Scaling Statistics Keysight True volt Series Operating and Service Guide...

  • Page 113: Display - Introduction

    For the Number and Bar Meter displays, many primary measurement functions allow you to display a sec- ondary measurement. See Secondary Measurements for details. Selecting the Display key, followed by the Display softkey allows you to select the display type: Pressing the Keysight True volt Series Operating and Service Guide...
  • Page 114 100 ms, min 20 µs. See Digitize Mode for details. Click a link below for more information on any of the display types: Number Bar Meter Trend Chart (34461A/65A/70A only) Histogram Secondary Measurements Keysight True volt Series Operating and Service Guide...

  • Page 115: Number

    Features and Functions Number By default, the instrument displays readings as a number: Keysight True volt Series Operating and Service Guide...
  • Page 116 ACV, Peak, or Pre-Math as the secondary measurement function. With ACV selec- ted as secondary, the display shows the DCV measurement near to top of the display, and the ACV meas- urement near the bottom of the display: Keysight True volt Series Operating and Service Guide...
  • Page 117 Features and Functions Refer to Secondary Measurements for more information on secondary measurements available for each measurement function. Keysight True volt Series Operating and Service Guide...
  • Page 118 In contrast, this image shows 4½ digits. The Auto softkey specifies that the number of digits displayed is based on other function-specific settings, such as the measurement aperture, set in NPLCs. Measurements are always rounded, never truncated. Keysight True volt Series Operating and Service Guide...
  • Page 119 Features and Functions See Also Display - Introduction Bar Meter Trend Chart (34461A/65A/70A only) Histogram Secondary Measurements Keysight True volt Series Operating and Service Guide...

  • Page 120: Bar Meter

    Features and Functions Bar Meter The bar meter (below) adds a moving bar below the standard Number display. Keysight True volt Series Operating and Service Guide...
  • Page 121 ACV, Peak, or Pre-Math as the secondary measurement function. With ACV selec- ted as secondary, the display shows the DCV measurement as a number near to top of the display, DCV in the bar meter, and the ACV measurement above the bar meter: Keysight True volt Series Operating and Service Guide...
  • Page 122 Features and Functions Refer to Secondary Measurements for more information on secondary measurements available for each measurement function. See Also Display - Introduction Number Trend Chart (34461A/65A/70A only) Histogram Secondary Measurements Keysight True volt Series Operating and Service Guide...

  • Page 123: Trend Chart (Continuous Measurement Mode)

    Each pixel column on the trend chart display represents 1/400 of the Time Window value; the Time Window setting determines the amount of time represented by each pixel column as follows: Keysight True volt Series Operating and Service Guide...
  • Page 124 When the reading rate is slower than the time per pixel column, some pixel columns may represent no readings. In this situation, the trend chart continues with a horizontal line across the pixel: Scaling The Vertical Scale softkey specifies how the current vertical scale is determined. Keysight True volt Series Operating and Service Guide...
  • Page 125 Span of 5 V. If you have enabled limits, the ( Limits ) softkey also appears. This sets the vertical scale to match the limits. See Also Display - Introduction Number Bar Meter Histogram Keysight True volt Series Operating and Service Guide...

  • Page 126: Trend Chart (Digitize And Data Log Modes)

    The display is 400 pixels wide. You can select a zoom percentage of 1%, 2%, 5%, 10%, 20%, 50%, or 100%. For example, the graphic above shows 5% zoom and the graphic below shows the same signal at 100% zoom: Keysight True volt Series Operating and Service Guide...
  • Page 127 Tip: Zoom to 100% to pan one reading at a time. After selecting a reading, you can then decrease the zoom, if necessary, to view the surrounding signal. Cursors - Display and control X1, X2, Y1, Y2, and tracking cursors (shown as lines) on the trend chart. Keysight True volt Series Operating and Service Guide...
  • Page 128 Place Yn on Screen - Press Y1 or Y2 followed by this softkey to set the cursor to a value that puts it into view on the chart. X and Y – Displays the X1, X2, Y1 and Y2 cursors. In this mode, these softkeys are available: Keysight True volt Series Operating and Service Guide...
  • Page 129 X1 - Use the arrow keys to control the X1 cursor. X2 - Use the arrow keys to control the X2 cursor. ∆X Lock - When ON , keeps the X cursors a fixed distance apart as either cursor is moved. Keysight True volt Series Operating and Service Guide...
  • Page 130 When data logging to files, the trend chart behaves in a manner similar to that of the continuous meas- urement mode. That is, the number of readings shown per pixel column depends on the reading rate and the selected Time Window. Keysight True volt Series Operating and Service Guide...
  • Page 131 Zoom, Pan, and Cursors are not available when data logging to files. Refer to Trend Chart (Continuous Measurement Mode) for more information. See Also Display - Introduction Trend Chart (Continuous Measurement Mode) Number Bar Meter Histogram Keysight True volt Series Operating and Service Guide...

  • Page 132: Histogram

    20 bins, 501 to 1000 readings = 40 bins, 1001 to 5000 readings = 100 bins, 5001 to 10000 readings = 200 bins, >10000 readings = 400 bins. If the NPLC setting is < 1 PLC, or Aperture Time (34465A/70A only) is < 20 ms, the maximum number of bins is 100. Keysight True volt Series Operating and Service Guide...
  • Page 133 0 to 100% on the vertical scale, regardless of the histogram’s scale. The final button on the histogram menu, Clear Readings , clears reading memory and starts a new his- togram. Keysight True volt Series Operating and Service Guide...
  • Page 134 2.250 00 k to 2.500 00k - Range of frequency measurement values for this bin. #29 - Number of samples in this bin. 11.5% - Percentage of the total number of samples in this bin. Keysight True volt Series Operating and Service Guide...
  • Page 135 Showing statistics ( Shift > Math > Statistics ) is particularly useful for the histogram display. For example, in the graphic below, the thick blue line is the average, each thin blue line represents one standard devi- ation from the average. Keysight True volt Series Operating and Service Guide...
  • Page 136 Features and Functions See Also Display - Introduction Number Bar Meter Trend Chart (34461A/65A/70A only) Keysight True volt Series Operating and Service Guide...

  • Page 137: Utility Menu - Introduction

    Manage files, including creating screen shots Configure LAN (optional on 34460A), GPIB (optional on all models), and USB Perform instrument self-tests and administrative functions Configure the instrument's date and time and various user settings Keysight True volt Series Operating and Service Guide...

  • Page 138: Utility - Autocalibration (34465A/70A Only)

    Step 4: (Optional step) Press the Edit Cal String softkey and enter the information for the cal string mes- sage. Common messages include the last calibration date, calibration due date, or calibration department contact information. When finished, press the Done softkey Step 5: Press the Perform Autocal softkey: Keysight True volt Series Operating and Service Guide...

  • Page 139: Utility - Store And Recall State And Preference Files

    Press Type to select whether you want to store a state or preferences file, and press Store State (shown above) or Store Pref (the softkey's label if you are storing preferences) to store the specified file. Action allows you to either store a file or to create a new folder. Keysight True volt Series Operating and Service Guide...
  • Page 140 ( Last ), a user-selected state file ( User Defined ), or the factory default state ( Factory Defaults ). Set to Defaults Set to Defaults loads the instrument's factory default state or preference settings. Keysight True volt Series Operating and Service Guide...

  • Page 141: Utility Menu - Manage Files

    Use the front panel arrows and [Select] key to navigate through the list, and press Select or Cancel to exit the browse window. The left and right arrows contract or expand a folder to hide or show its files. Keysight True volt Series Operating and Service Guide...
  • Page 142 In the image below, there is no Next Char softkey because the cursor is at the end. Press [Done] or [Cancel] to finish. Keysight True volt Series Operating and Service Guide...

  • Page 143: Utility Menu - I/O Configuration

    (DHCP or Manual) selected. For example, press Host Name or Service mDNS to modify the instrument's host name or mDNS Service Name, shown below. Keysight True volt Series Operating and Service Guide...
  • Page 144 The instrument Telnet port is 5024. Open SCPI sessions on the Telnet connection by entering: telnet IP address 5024 Refer to the Keysight IO Libraries help for information on the VXI-11, Sockets, and HiSLIP protocols. USB Settings USB Settings configures the front panel USB (storage) and rear-panel USB (connectivity) connectors.
  • Page 145 To use Easy File Access at the same time that you are remotely programming the instrument with SCPI over the USB interface ( USB SCPI ), you must have Keysight IO Libraries Suite 16.3 or later installed on your PC. You may download the latest version at www.keysight.com/find/iosuite.

  • Page 146: Utility Menu - Test/Admin

    Self-Test verifies proper instrument operation. See Self-Test Procedures for details, and always safely dis- connect inputs to the DMM terminals before running the Full Test. Calibrate Calibrate accesses the instrument calibration procedure. See Calibration for details. Keysight True volt Series Operating and Service Guide...
  • Page 147 Install License enables licensed instrument features. For information on obtaining licenses, go to www.keysight.com/find/truevolt. After receiving a license file from Keysight, use the following procedure to install the license: 1. Save the license file to a USB drive and connect the USB drive to the DMM's front panel USB connector.

  • Page 148: Utility Menu - System Setup

    Diode – the forward bias voltage is between 0.3 and 0.8 V Continuity – a short is measured (less than or equal to 10 Ω) Error - an error is generated from the front panel or remote interface Keysight True volt Series Operating and Service Guide...
  • Page 149 *IDN? to return a particular manufacturer and model number. If you have an older Agilent 34460A or 34461A and upgrade to the new (Keysight) firmware, your instru- ment continues to respond with the manufacturer name “Agilent”, not “Keysight” until you set the front panel SCPI ID to 34460A or 34461A, send the...
  • Page 150 Use the front panel arrows and [Select] key to select the letters. Then press Done to exit and save the mes- sage. The message will appear as shown below when you turn the instrument on or press [Help] > About . Keysight True volt Series Operating and Service Guide...

  • Page 151: Web Interface

    Features and Functions Web Interface The Keysight True volt Series DMMs include a built-in Web Interface for monitoring and controlling the instrument via a Web browser. To begin, connect your instrument to the LAN and enter the instrument's IP address into the address bar at the top of your PC's Web browser, or select the instrument in Connection Expert and click the Instrument Web Interface...

  • Page 152: Instrument Monitor And Control Page

    In Allow Full Control mode, this window configures the instrument and takes measurements. Simply select the DMM settings and click Apply . The six buttons along the top of the screen are described below. Keysight True volt Series Operating and Service Guide...
  • Page 153 Graphics Display radio button and click Get Display Image to update the graphical display: View Data For both the Observe Only and Allow Full Control modes, this window keeps a running display of Read- ings in Memory and has these active controls: Keysight True volt Series Operating and Service Guide...
  • Page 154 SCPI configuration, and error queue. Check the desired boxes on the left side of the screen and then click Generate Report . The Change in SCPI Configuration box produces a list of all of the SCPI Keysight True volt Series Operating and Service Guide...
  • Page 155 Use the Enter SCPI command or query field to enter SCPI commands and click Send ,to execute the com- mand, Read to read back a response, or Send & Read to execute the command and read back the response. Keysight True volt Series Operating and Service Guide...

  • Page 156: Configuration Page

    Configuration Page The Configuration page allows you to view the instrument's network configuration parameters, which con- figure the instrument to operate in your environment. To modify a parameter, click Modify Configuration . Keysight True volt Series Operating and Service Guide...

  • Page 157: Help

    Features and Functions Help Help is available for each of the tabs described above. For example: Keysight True volt Series Operating and Service Guide...

  • Page 158: Measurement Tutorial

    Measurement Tutorial Measurement Tutorial Follow the suggestions in the sections below to achieve the greatest accuracy with Keysight True volt Ser- ies multimeters. Metrology DC Measurement Considerations Noise Rejection Resistance Measurement Considerations True RMS AC Measurements Capacitance Digitizing Data Logging...

  • Page 159: Measurement Considerations

    Measurement Tutorial Measurement Considerations To achieve the greatest accuracy with the Keysight True volt Series multimeters, you must eliminate poten- tial measurement errors. This chapter describes common errors and suggests ways to avoid them. Keysight True volt Series Operating and Service Guide...

  • Page 160: Metrology

    Measurement Tutorial Metrology The 34470A 7½-digit DMM is well-suited for high-accuracy metrology applications. Keysight has a num- ber of application notes pertaining to maximizing measurement accuracy, such as: Practical Tips for Optimizing Measurement Accuracy with your Digital Multimeter -This Web page has a number of links to application notes addressing DMM measurement errors and how to make temperature measurements.

  • Page 161: Dc Measurement Considerations

    To reduce the effects of loading errors and to minimize noise pickup, set the multimeter's input resistance to >10 GΩ (high-impedance) for the 100 mVDC, 1 VDC, and 10 VDC ranges. The input resistance is main- tained at 10 MΩ for the 100 VDC and 1000 VDC ranges. Keysight True volt Series Operating and Service Guide...

  • Page 162: Noise Rejection

    Loose or vibrating test leads will also induce error voltages. Tie down test leads securely when operating near magnetic fields. Whenever possible, use magnetic shielding materials or increased distance from magnetic sources. Keysight True volt Series Operating and Service Guide...

  • Page 163: Noise Caused By Ground Loops

    The best way to eliminate ground loops is to isolate the multimeter from earth by not grounding the input terminals. If the multimeter must be earth–referenced, connect it and the DUT to one common ground point. Also connect the multimeter and DUT to the same electrical outlet whenever possible. Keysight True volt Series Operating and Service Guide...

  • Page 164: Resistance Measurement Considerations

    Short the test lead ends together and read the displayed test lead resistance. Press Null . The multimeter will store the test lead resistance as the 2-wire ohms null value, and subtract that value from subsequent measurements. See also "Null Measurements." Keysight True volt Series Operating and Service Guide...

  • Page 165: Minimizing Power Dissipation Effects

    "dirty" surface films. Nylon and PVC are relatively poor insulators (10 Ω) when compared to PTFE insu- lators (10 Ω). Leakage from nylon or PVC insulators can easily contribute a 0.1% error when measuring a 1 MΩ resistance in humid conditions. Keysight True volt Series Operating and Service Guide...

  • Page 166: True Rms Ac Measurements

    The Keysight True volt Series uses the same techniques to measure true rms voltage and true rms current. The effective AC voltage bandwidth is 300 kHz, while the effective AC current bandwidth is 10 kHz.

  • Page 167: True Rms Accuracy And High-Frequency Signal Content

    Reducing the prf increases the density of lines in the Fourier spectrum, and increases the portion of the input signal’s spectral energy within the multimeter’s bandwidth, which improves accuracy. In summary, error in rms measurements arise when there is significant input signal energy at frequencies above the multimeter’s bandwidth. Keysight True volt Series Operating and Service Guide...

  • Page 168: Estimating High-Frequency (Out-Of-Band) Error

    The first zero crossing of a simple pulse occurs at f = 1/t This gives an immediate impression of the high-frequency content by identifying where this crossing occurs as a function of crest factor: f =(CF )(prf). Keysight True volt Series Operating and Service Guide...
  • Page 169 Factor of 3) and duration 111 µs. The prf can be calculated to be 1000 Hz, as follows: Thus, from the table above, this AC waveform can be measured with 0.18 percent additional error. Keysight True volt Series Operating and Service Guide...

  • Page 170: Other Primary Measurement Functions

    AC or DC voltages above 15 volts peak on the un-needed sense terminals are likely to cause measurement errors. If unexpected errors are occurring, signals on the un-needed ter- minals is an area to check. Keysight True volt Series Operating and Service Guide...

  • Page 171: Temperature Measurements

    = 2.362e-4, C = 9.285e-8. Using an incorrect type of thermistor can result in errors greater than 20 °C for a temperature being measured of 100 °C. For a detailed tutorial on temperature measurements, refer to Keysight Application Note 290 Practical Temperature Measurements available at www.keysight.com.

  • Page 172: Null Reading

    0.2 seconds. This settling time only affects measurement accuracy when DC offset levels vary from sample to sample. If maximum measurement speed is desired, you may want to add an Keysight True volt Series Operating and Service Guide...

  • Page 173: Making High-Speed Dc And Resistance Measurements

    Set the integration time (NPLC or aperture) to minimum Select a fixed range (autorange off) Disable autozero Disable offset compensation (resistance measurements) Refer to the particular measurement type in Measurements for more information on the above functions. Keysight True volt Series Operating and Service Guide...

  • Page 174: Capacitance

    (Dt). This measurement is repeated at two different times during the exponential rise that occurs. An algorithm takes the data from these four points, and by linearizing that exponential rise over these “short apertures”, accurately calculates the capacitance value. Keysight True volt Series Operating and Service Guide...

  • Page 175: Capacitance Measurement Considerations

    A high quality film capacitor typically shows the least of this and an electrolytic capacitor the most, with ceramic capacitors typically in between. Keysight True volt Series Operating and Service Guide...

  • Page 176: Digitizing Measurements

    This limits the bandwidth of the input signal so that aliasing cannot occur. Since the multimeter has a variable sample rate for DCV digitizing, and to preserve the upper bandwidth Keysight True volt Series Operating and Service Guide...

  • Page 177: Level Triggering

    > Select to view more information. The DIG option increases the maximum reading rates from 5k readings/s (standard) to 50k readings/s (max- imum). The DIG option enables pretriggering, level triggering, and trigger delay capability. Keysight True volt Series Operating and Service Guide...
  • Page 178 After acquisition is complete – trend chart pan, zoom, and curs- ors can be used to review data. Statistics and histogram data are calculated after the digitizing is completed. Keysight True volt Series Operating and Service Guide...

  • Page 179: Data Log And Digitizing Local Remote Interaction

    The Web User Interface monitor does not set the instrument to remote. *When accessed from remote, the instrument will continue data logging or digitizing to completion, and you can retrieve the read- ings from remote. Keysight True volt Series Operating and Service Guide...

  • Page 180: Data Log Mode

    (particularly NPLC settings for DC and res- istance measurements). In this situation, press the measurement function key (for example, DCV) and decrease the aperture setting (either NPLC or Time). Keysight True volt Series Operating and Service Guide...
  • Page 181 _00001, the third filename with _00002, and so on. When data logging to files, the maximum number of readings you can data log to files is 100 hours x 1000rdgs/sec =360,000,000. Keysight True volt Series Operating and Service Guide...
  • Page 182 You can specify a comma, tab, or semicolon delimiter to separate the values. When Metadata is off, only the reading data is saved: Keysight True volt Series Operating and Service Guide...
  • Page 183 Measurement Tutorial Keysight True volt Series Operating and Service Guide...

  • Page 184: Data Logging And The Trend Chart Display

    That is, the number of readings shown per pixel column depends on the reading rate and the selected Time Window. Keysight True volt Series Operating and Service Guide...

  • Page 185: Data Log And Digitizing Local Remote Interaction

    The Web User Interface monitor does not set the instrument to remote. *When accessed from remote, the instrument will continue data logging or digitizing to completion, and you can retrieve the read- ings from remote. Keysight True volt Series Operating and Service Guide...

  • Page 186: Level Triggering

    For lowest latency and highest sensitivity, use a fixed range when using level trigger. However, trigger level accuracy is reduced when the hardware detector is used. To increase trigger level accuracy and reduce sensitivity (avoid false triggers due to noise), use autorange: Keysight True volt Series Operating and Service Guide...
  • Page 187 Frequency and period considerations Trigger level accuracy is increased, latency is increased, and sensitivity is decreased as gate time is increased. Fixed voltage range eliminates uncertainties (due to range change) in trigger latency. Keysight True volt Series Operating and Service Guide...

  • Page 188: Other Sources Of Measurement Error

    The table below shows the multimeter's approximate input resistance at various frequencies. Input Frequency Input Resistance (kΩ) 100 Hz 1 kHz 10 kHz 100 kHz 15.7 For low frequencies, the loading error is: At high frequencies, the additional loading error is: Keysight True volt Series Operating and Service Guide...

  • Page 189: Measurements Below Full Scale

    AC current is larger due to the multimeter's series inductance and your measurement connections. The burden voltage increases as the input frequency increases. Some circuits may oscillate when performing current measurements due to the multimeter's series inductance and your measurement connections. Keysight True volt Series Operating and Service Guide...

  • Page 190: Low-Level Measurement Errors

    Typically, the DMM exhibits about 0.06% additional error for a 100 V, 100 kHz reverse input. You can use the grounding techniques described for DC common mode problems to minimize AC common mode voltages. Keysight True volt Series Operating and Service Guide...

  • Page 191: Leakage Current Errors

    Unnecessary signals applied to the Hi and Lo Sense terminals can also cause errors. AC or DC voltages above 15 volts peak on the sense terminals are likely to cause measurement errors. Keysight True volt Series Operating and Service Guide...

  • Page 192: How Sample Rate/Interval Is Determined

    Another way to put it is that for continuous and data log modes, sample timer/interval is always con- trolled by the other measurement settings. In digitize mode, the sample timer/interval, NPLC, and aper- ture have equal control; changing any one setting can change the other settings. Keysight True volt Series Operating and Service Guide...

  • Page 193: Scpi Programming Reference

    SCPI Programming Reference SCPI Programming Reference This section contains information to help you program the Keysight True volt Series digital multimeters over a remote interface using the SCPI programming language. Introduction to the SCPI Language Commands by Subsystem Command Quick Reference...

  • Page 194: Introduction To The Scpi Language

    Optional parameters are enclosed in square brackets ( [ ] ). The brackets are not sent with the command string. If you do not specify a value for an optional parameter, the instrument uses a default value. Keysight True volt Series Operating and Service Guide...

  • Page 195: Command Separators

    The following example sets the trigger count to 10 measurements: TRIG:COUN 10 You can then query the count value by sending: TRIG:COUN? You can also query the minimum or maximum count allowed as follows: TRIG:COUN? MIN TRIG:COUN? MAX Keysight True volt Series Operating and Service Guide...

  • Page 196: Scpi Command Terminators

    (or "m"). For your convenience, the instrument interprets "mV" (or "MV") as millivolts, but "MHZ" (or "mhz") as megahertz. Likewise "MΩ" (or "mΩ") is interpreted as megΩ. You can use the prefix "MA" for mega. For example, "MAV" is interpreted as megavolts. Keysight True volt Series Operating and Service Guide...
  • Page 197 For example, The following example displays the message "WAITING..." on the instrument's front panel (the quotes are not displayed). DISP:TEXT "WAITING..." You can also display the same message using The following example with single quotes. DISP:TEXT 'WAITING...' Keysight True volt Series Operating and Service Guide...

  • Page 198: Using Device Clear

    CALCulate:CLEar[:IMMediate] CALCulate:AVERage Subsystem CALCulate:LIMit Subsystem CALCulate:SCALe Subsystem CALCulate:SMOothing Subsystem CALCulate:TCHart[:STATe] CALCulate:TRANsform:HISTogram Subsystem CALibration Subsystem CONFigure Subsystem DATA Subsystem DISPlay Subsystem FETCh? FORMat Subsystem HCOPy Subsystem IEEE 488.2 Common Commands INITiate[:IMMediate] LXI Subsystem Keysight True volt Series Operating and Service Guide...
  • Page 199 [SENSe:]CURRent Subsystem [SENSe:]DATA2 Subsystem [SENSe:]{FREQuency|PERiod} Subsystem [SENSe:]{RESistance|FRESistance} Subsystem [SENSe:]TEMPerature Subsystem [SENSe:]VOLTage Subsystem STATus Subsystem SYSTem Subsystem - General Purpose Commands SYSTem Subsystem - I/O Configuration SYSTem:LICense Subsystem SYSTem:LOCK Subsystem TEST:ALL? TRIGger Subsystem UNIT:TEMPerature Keysight True volt Series Operating and Service Guide...

  • Page 200: Abort

    (none) (none) Abort a measurement in progress: ABORt Use this to abort a measurement when the instrument is waiting for a trigger, or for aborting a long measurement or series of measurements. Keysight True volt Series Operating and Service Guide...

  • Page 201: Fetch

    Data Register's condition register (see Status System Introduction). The instrument clears all measurements from reading memory when the measurement configuration changes, or when any of these commands are executed: INITiate, MEASure:< function >?, READ?, *RST, SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...

  • Page 202: Initiate[:Immediate]

    Data Register's condition register (see Status System Introduction). To retrieve the measurements from the reading memory, use FETCh?. Use DATA:REMove? read and erase all or part of the available measurements. ABORt to return to idle. Keysight True volt Series Operating and Service Guide...

  • Page 203: Output:trigger:slope {Positive|Negative}Output:trigger:slope

    SAMP:COUN 2 OUTP:TRIG:SLOP POS INIT On the 34460A, this requires option 34460A-LAN or option 3446LANU. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 204: R? []

    14) is set in the Questionable Data Register's condition register (see Status System Introduction). The instrument clears all measurements from reading memory when the measurement configuration changes, or when any of these commands are executed: INITiate, MEASure:< function >?, READ?, *RST, SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...

  • Page 205: Read

    Data Register's condition register (see Status System Introduction). The instrument clears all measurements from reading memory when the measurement configuration changes, or when any of these commands are executed: INITiate, MEASure:< function >?, READ?, *RST, SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...

  • Page 206: Route:terminals

    Parameter Typical Return (none) FRON or REAR Return the state of the Front/Rear switch: ROUT:TERM? On the 34460A, this query always returns FRON. Keysight True volt Series Operating and Service Guide...

  • Page 207: Test:all

    If one or more tests fail, the query returns +1 and stores an error in the error queue. For a complete list- ing of the error messages related to self-test failures, see Self-test Error Messages. Following the test, the instrument returns to the instrument state that existed before the self-test. Keysight True volt Series Operating and Service Guide...

  • Page 208: Unit:temperature {C|F|K}Unit:temperature

    The command also accepts CEL or FAR, but the query returns C or F. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). See Also CONFigure:TEMPerature MEASure:TEMPerature? [SENSe:]FUNCtion[:ON] Keysight True volt Series Operating and Service Guide...

  • Page 209: Calculate Subsystem Introduction

    It also optionally performs the following math operations, as shown in the diagram below: Smoothing Scaling Statistics Limit checking Histogram Only calculations enabled by CALC:SCAL:STAT, CALC:TRAN:HIST:STAT, CALC:LIM:STAT, and CALC:AVER:STAT are performed. Parts of the CALCulate Subsystem CALCulate:CLEar[:IMMediate] AVERage Subsystem Keysight True volt Series Operating and Service Guide...
  • Page 210 SCPI Programming Reference HISTogram Subsystem LIMit Subsystem SCALing Subsystem SMOothing Subsystem Keysight True volt Series Operating and Service Guide...
  • Page 211 Parameter Typical Return (none) (none) Clear all limits, histogram data, statistics, and measurements: CALC:CLE:IMM Items are cleared synchronously; histogram, statistics, and limit data all restart at the same time that measurements restart. Keysight True volt Series Operating and Service Guide...
  • Page 212 *CLS STAT:PRES CONF:VOLT 10,.001 SAMP:COUN 100 CALC:LIM:LOW 3.2 CALC:LIM:UPP 3.4 CALC:LIM:STAT ON INIT *WAI STAT:QUES? Typical Response: +4096 (at least one measurement was above the upper limit) Command Summary CALCulate:LIMit:CLEar[:IMMediate] CALCulate:LIMit:{LOWer|UPPer}[:DATA] CALCulate:LIMit[:STATe] Keysight True volt Series Operating and Service Guide...
  • Page 213 Questionable Data Register when the measurement function changes, or when any of the following commands is executed: CALCulate:LIMit:STATe ON INITiate MEASure:< function >? READ? CALCulate:LIMit:CLEar *RST SYSTem:PRESet To clear statistics, limits, histogram data, and measurement data, use CALCulate:CLEar[:IMMediate]. Keysight True volt Series Operating and Service Guide...
  • Page 214 12 ("Upper Limit Failed"). See STATus Subsystem Introduction for further information. CONFigure resets both limits to 0. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 215 Questionable Data Register when the measurement function changes, or when any of the following commands is executed: CALCulate:LIMit:STATe ON INITiate MEASure:< function >? READ? CALCulate:LIMit:CLEar *RST SYSTem:PRESet The instrument turns this setting OFF when the measurement function is changed or after *RST SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 216 CALCulate:TRANsform:HISTogram:CLEar[:IMMediate] CALCulate:TRANsform:HISTogram:POINts CALCulate:TRANsform:HISTogram:RANGe:AUTO CALCulate:TRANsform:HISTogram:RANGe:{LOWer|UPPer} CALCulate:TRANsform:HISTogram[:STATe] INITiate[:IMMediate] MEASure:< function >? READ? *RST SYSTem:PRESet Command Summary CALCulate:TRANsform:HISTogram:ALL? CALCulate:TRANsform:HISTogram:CLEar[:IMMediate] CALCulate:TRANsform:HISTogram:COUNt? CALCulate:TRANsform:HISTogram:DATA? CALCulate:TRANsform:HISTogram:POINts CALCulate:TRANsform:HISTogram:RANGe:AUTO CALCulate:TRANsform:HISTogram:RANGe:{LOWer|UPPer} CALCulate:TRANsform:HISTogram[:STATe] Keysight True volt Series Operating and Service Guide...
  • Page 217 The number of measurements greater than the upper range value Range values are real numbers returned in the form +1.00000000E+00. The number of measurements and bin data are signed, positive integers returned in the form +100. Keysight True volt Series Operating and Service Guide...
  • Page 218 CALCulate:TRANsform:HISTogram:RANGe: {LOWer|UPPer}. Lower and upper range values are computed automatically if CALCu- late:TRANsform:HISTogram:RANGe:AUTO is ON. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 219 If no histogram data exists, 9.91E37 (Not a Number) is returned. Lower and upper range values are computed automatically if CALCu- late:TRANsform:HISTogram:RANGe:AUTO is ON. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 220 CALCulate:TRANsform:HISTogram[:STATe] {ON|1|OFF|0} CALCulate:TRANsform:HISTogram[:STATe]? Enables or disables histogram computation. Parameter Typical Return {ON|1|OFF|0}. Default: OFF. 0 (OFF) or 1 (ON) Example The instrument turns this setting OFF when the measurement function is changed or after *RST SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 221 The dB relative value parameter is relative to the dBm reference resistance set with CALCu- late:SCALe:DBM:REFerence. The instrument sets the reference value to 0.0 with automatic reference selection enabled after a Fact- ory Reset (*RST), an Instrument Preset (SYSTem:PRESet), or a change in measurement function. Keysight True volt Series Operating and Service Guide...
  • Page 222 (CALCulate:SCALe:DBM:REFerence), relative to 1 milliwatt. (dBm = 10 × log 10 (measurement 2 / reference resistance / 1 mW)). dBm scaling applies to ACV and DCV measurements only. Keysight True volt Series Operating and Service Guide...
  • Page 223 CALC:SCAL:FUNC SCAL CALC:SCAL:GAIN 100 CALC:SCAL:OFFS 5 CALC:SCAL:STAT ON Applies only to the 34465A and 34470A. The instrument sets the gain value to 0.0 after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 224 (CALCu- late:SCALe:REFerence:AUTO OFF). The instrument sets the reference value to 0.0 with automatic reference selection enabled after a Fact- ory Reset (*RST) or Instrument Preset (SYSTem:PRESet), or a change in measurement function. Keysight True volt Series Operating and Service Guide...
  • Page 225 You must execute CALCulate:SCALe:FUNCtion before executing CALCulate:SCALe[:STATe], otherwise an incompatibility error will be generated. Scaling is set to OFF when you change measurement functions (for example, changing from DCV to ACV). You must re-enable scaling after changing measurement functions. Keysight True volt Series Operating and Service Guide...
  • Page 226 (comma, ampersand, …), and some symbols, including the degree symbol ( ° ). If you set the measurement label to °C, °F, or K, this has no effect the temperature units set using UNIT:TEMPerature. Keysight True volt Series Operating and Service Guide...
  • Page 227 Applies only to the 34465A and 34470A. CALCulate:SCALe:UNIT specifies the unit string to be displayed. The instrument disables displaying the unit string after a Factory Reset (*RST) or an Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 228 SCPI Programming Reference CALCulate:AVERage Subsystem This subsystem calculates measurement statistics. Command Summary CALCulate:AVERage:ALL? CALCulate:AVERage:AVERage? CALCulate:AVERage:CLEar[:IMMediate] CALCulate:AVERage:COUNt? CALCulate:AVERage:MAXimum? CALCulate:AVERage:MINimum? CALCulate:AVERage:PTPeak? CALCulate:AVERage:SDEViation? CALCulate:AVERage[:STATe] Keysight True volt Series Operating and Service Guide...
  • Page 229 CALC:AVER:STAT ON INIT *WAI CALC:AVER:ALL? Typical Response: +1.00520000E+03,+1.00512000E+03,+1.00527000E+03,+4.13500000E-01 Statistics are cleared when the measurement function changes or when any of these commands is executed: CALCulate:AVERage:STATe ON CALCulate:AVERage:CLEar INITiate MEASure:< function >? READ? *RST Keysight True volt Series Operating and Service Guide...
  • Page 230 SCPI Programming Reference SYSTem:PRESet All values are returned in the form +1.23450000E+01. When dB or dBm scaling is used, the CALC:AVER:AVER and CALC:AVER:SDEV queries return +9.91000000E+37 (not a number). Keysight True volt Series Operating and Service Guide...
  • Page 231 CALCulate:AVERage[:STATe]? Enables or disables statistics computation. Parameter Typical Return {ON|1|OFF|0}. Default: OFF. 0 (OFF) or 1 (ON) Return the statistics of 100 frequency measurements: CONF:FREQ 1.0E3,.001 SAMP:COUN 100 CALC:AVER:STAT ON INIT *WAI CALC:AVER:ALL? Typical Response: +1.00520000E+03,+1.00512000E+03,+1.00527000E+03,+4.13500000E-01 Keysight True volt Series Operating and Service Guide...
  • Page 232 Statistics are cleared when the measurement function changes or when any of these commands is executed: CALCulate:AVERage:STATe ON CALCulate:AVERage:CLEar INITiate MEASure:< function >? READ? *RST SYSTem:PRESet The instrument turns this setting OFF when the measurement function is changed or after *RST SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 233 10, 50, or 100 measurements. Equal weighting is applied to all measurements used in the average. The instrument sets the response time to FAST after a Factory Reset (*RST ) or after an Instrument Pre- set (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 234 CALCulate subsystem and the individual calculate functions are disabled for timestamp meas- urements. The instrument disables the smoothing (moving average) filter after a Factory Reset (*RST) or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 235 Trend chart data must be disabled (OFF) to make measurements at the highest speed (50 kHz). This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 236: Calibration Subsystem

    You must unsecure the instrument to calibrate it or to change the calibration code or security code. Parameter Typical Return (none) 0 (successful) or 1 (unsuccessful) Calibrate the ADC: CAL:ADC? This is the first step in a re-calibration sequence, and must be done before doing the offset calibration. Keysight True volt Series Operating and Service Guide...
  • Page 237 You can perform this query regardless of whether the instrument is secured. This setting is non-volatile; it will not be changed by power cycling or *RST or SYSTem:PRESet. See Also SYSTem:SECurity:COUNt? Keysight True volt Series Operating and Service Guide...
  • Page 238 When shipped from the factory, the instrument is secured, with the security code (calibration pass- word) set to AT3446XA . This setting is non-volatile; it will not be changed by power cycling or *RST or SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 239 You must unsecure the instrument to calibrate it or to change the calibration code or security code. Parameter Typical Return (none) (none) Store calibration constants into non-volatile memory: CAL:STOR Keysight True volt Series Operating and Service Guide...
  • Page 240 Return the calibration time: CAL:TIME? You can perform this query regardless of whether the instrument is secured. This setting is non-volatile; it will not be changed by power cycling or *RST or SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 241 You must unsecure the instrument to calibrate it or to change the calibration code or security code. Parameter Typical Return Numeric, default 0.0 +2.37000000E-02 Specify calibration value 0.0237: CAL:VAL 2.37E-2 This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 242: Configure Subsystem

    AUTO (including voltage range for frequency and period measurements) Samples per Trigger 1 sample Trigger Count 1 trigger Trigger Delay Automatic delay Trigger Source Immediate Trigger Slope NEGative Math Functions Disabled. Other parameters are unchanged. Per-function Null State Disabled Keysight True volt Series Operating and Service Guide...
  • Page 243 The following example configures the instrument for 2-wire resistance measurements, triggers the instru- ment to make one measurement using INITiate, and stores the measurement in reading memory. The 10 kΩ range is selected with 100 Ω resolution. CONF:RES 10000,100 INIT FETC? Typical Response: +5.95850000E+03 Keysight True volt Series Operating and Service Guide...
  • Page 244 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. READ? INITiate to start the measurement. Keysight True volt Series Operating and Service Guide...
  • Page 245 From 10 Ω to 1.2 kΩ, the instrument displays the actual resistance measurement with no beep. Above 1.2 kΩ, the instrument displays "OPEN" with no beep. The FETCh?, READ?, and MEASure:CONTinuity? queries return the measured resistance, regardless of its value. READ? INITiate to start the measurement. Keysight True volt Series Operating and Service Guide...
  • Page 246 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. To control the measurement rate for AC measurements, change the trigger delay or AC filter band- Keysight True volt Series Operating and Service Guide...
  • Page 247 5.05 V, the front panel shows "OPEN", and the value returned from SCPI is 9.9E37. The FETCh?, READ?, and MEASure:DIODe? queries return the measured voltage, regardless of its value. READ? INITiate to start the measurement. Keysight True volt Series Operating and Service Guide...
  • Page 248 Overload on the front panel and returns "9.9E37" from the remote interface. Autor- anging can be enabled for the input voltage. READ? INITiate to start the measurement. See Also CONFigure? MEASure:{FREQuency|PERiod}? Keysight True volt Series Operating and Service Guide...
  • Page 249 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. READ? INITiate to start the measurement. See Also CONFigure? MEASure:{RESistance|FRESistance}? Keysight True volt Series Operating and Service Guide...
  • Page 250 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. READ? INITiate to start the measurement. Keysight True volt Series Operating and Service Guide...
  • Page 251 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 252 SCPI Programming Reference To control the measurement rate for AC measurements, change the trigger delay or AC filter band- width. READ? INITiate to start the measurement. See Also CONFigure? MEASure[:VOLTage]:{AC|DC}? [SENSe:]CURRent:AC:BANDwidth Keysight True volt Series Operating and Service Guide...
  • Page 253 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. READ? INITiate to start the measurement. Keysight True volt Series Operating and Service Guide...
  • Page 254 SCPI Programming Reference See Also CONFigure? MEASure[:VOLTage][:DC]:RATio? Keysight True volt Series Operating and Service Guide...

  • Page 255: Data Subsystem

    You can store up to 1,000 measurements in the reading memory of the 34460A, 10,000 meas- urements on the 34461A, 50,000 measurements on the 34465A/70A ( without the MEM option), or 2,000,000 measurements on the 34465A/70A ( with the MEM option). Keysight True volt Series Operating and Service Guide...
  • Page 256 The Standard Operation Condition register shows the current condition. See STATus Subsystem Intro- duction for further information. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 257 No error is generated, but the Reading Mem Ovfl bit (bit 14) is set in the Ques- tionable Data Register's condition register (see Status System Introduction). Keysight True volt Series Operating and Service Guide...

  • Page 258: Display Subsystem

    While a message is displayed, information relating to the current instrument operation is not sent to the front panel display. The display text is unaffected by *RST. It is cleared at power-on. Keysight True volt Series Operating and Service Guide...
  • Page 259 Display histogram: DISP:VIEW HIST The display is not turned on if the display state is OFF. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 260: Format Subsystem

    Specifies the data format to be either ASCII or REAL. Affects the data format of the MEASure?, READ?, FETCh?, DATA:REMove? commands only. Parameter Typical Return <length> ASCii: "9" or REAL: "64" ASC,9 Specify the 64-bit REAL data format: FORM:DATA REAL,64 or FORM:DATA REAL Keysight True volt Series Operating and Service Guide...
  • Page 261 If REAL is specified, numeric data is transferred as REAL binary data in IEEE 488.2 definite-length block format. The < length > parameter is optional, but "64" is the default and only allowed value. The byte order is controlled by FORMat:BORDer. Keysight True volt Series Operating and Service Guide...

  • Page 262: Hcopy Subsystem

    Example The image format (PNG or BMP) is specified by HCOPy:SDUMp:DATA:FORMat. HCOPy:SDUMp:DATA:FORMat {PNG|BMP} HCOPy:SDUMp:DATA:FORMat? Specifies the format for images returned by HCOPy:SDUMp:DATA?. Parameter Typical Return {PNG|BMP}. Default: PNG. PNG or BMP Example Keysight True volt Series Operating and Service Guide...

  • Page 263: Ieee 488.2 Common Commands

    IEEE 488.2 Common Commands These commands and queries are associated with the IEEE 488.2 standard. Command Summary *CAL? *CLS *ESE *ESR? *IDN? *LRN? *OPC *OPC? *OPT? *PSC *RCL *RST *SAV *SRE *STB? *TRG *TST? *WAI Keysight True volt Series Operating and Service Guide...
  • Page 264 One or more bits are set in the Status Byte Register and may generate a Request for Service *SRE (RQS). Bits must be enabled using Standard Operation One or more bits are set in the Standard Operation Register (bits must be enabled, see Summary STATus:OPERation:ENABle Keysight True volt Series Operating and Service Guide...
  • Page 265 *CLS Clear Status Command . Clears the event registers in all register groups. Also clears the error queue. Parameter Typical Return (none) (none) Clear event register bits and error queue: *CLS Keysight True volt Series Operating and Service Guide...
  • Page 266 The < enable > setting is nonvolatile; it does not change after a Factory Reset (*RST) , Instrument Pre- set (SYSTem:PRESet), Status Preset (STATus:PRESet) or Clear Status (*CLS). Keysight True volt Series Operating and Service Guide...
  • Page 267 To set the enable register mask, write a decimal value to the register using *ESE. Once a bit is set, it remains set until cleared by reading the event register or by sending *CLS (clear status). Keysight True volt Series Operating and Service Guide...
  • Page 268 - Main firmware revision pp.pp - Front panel firmware revision mm.mm - Measurement board firmware revision gg.gg - Measurement board FPGA revision bb - Measurement board revision fp - Front panel board revision Keysight True volt Series Operating and Service Guide...
  • Page 269 - Main firmware revision pp.pp - Front panel firmware revision mm.mm - Measurement board firmware revision gg.gg - Measurement board FPGA revision bb - Measurement board revision fp - Front panel board revision Keysight True volt Series Operating and Service Guide...
  • Page 270 Other commands may be executed before Operation Complete bit is set. The difference between *OPC and *OPC? is that*OPC sets a status bit when the operation completes, and *OPC? outputs "1" when the operation completes. Keysight True volt Series Operating and Service Guide...
  • Page 271 A 0 is returned for options that are not installed. For example, a 34461A with only GPIB installed returns GPB,0. A 34460A with only GPB and SEC installed returns GPB,0,SEC. Options vary by model, as shown here. Keysight True volt Series Operating and Service Guide...
  • Page 272 It is overwritten with the power-down state of the instrument when power is cycled. The instrument state enable settings are stored in nonvolatile memory. They do not change when power has been off, after a Factory Reset (*RST) or after an Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 273 (power-on status clear) determines whether Status Byte enable register is cleared at power on. For example, *PSC 0 preserves the enable register contents through power cycles. The Status Byte enable register is not cleared by *RST. Keysight True volt Series Operating and Service Guide...
  • Page 274 Typical Response:+1.00520000E+01, … (5 measurements) After setting the trigger source, you must send INITiate to place the DMM in the "wait-for-trigger" state. The *TRG command is not accepted unless the DMM is in the "wait-for-trigger" state. Keysight True volt Series Operating and Service Guide...
  • Page 275 Parameter Typical Return (none) (none) Wait until all pending operations complete: *WAI Configuration changes and measurements are considered pending operations. Therefore, *WAI causes these changes to occur and complete. Keysight True volt Series Operating and Service Guide...

  • Page 276: Lxi Subsystem

    This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). This parameter is set to its default value when the instrument is shipped from the factory and after SYSTem:SECurity:IMMediate. Keysight True volt Series Operating and Service Guide...
  • Page 277 "(< N >)" appended. The N is an integer appended if necessary to make the name unique. The desired name may be truncated, if necessary, to make room for the appended integer. Parameter Typical Return (none) "Keysight 34461A Digital Multimeter - 00123" Return resolved mDNS service name: LXI:MDNS:SNAMe:RESolved? Keysight True volt Series Operating and Service Guide...
  • Page 278 If the LAN interface or specific LAN services (VXI-11, sockets, and so on) have been disabled by SYSTem:COMMunicate:ENABle, you must separately re-enable the interface or services and cycle instrument power for the LAN to be operational. Keysight True volt Series Operating and Service Guide...

  • Page 279: Measure Subsystem

    AUTO (including voltage range for frequency and period measurements) Samples per Trigger 1 sample Trigger Count 1 trigger Trigger Delay Automatic delay Trigger Source Immediate Trigger Slope NEGative Math Functions Disabled. Other parameters are unchanged. Per-function Null State Disabled Keysight True volt Series Operating and Service Guide...
  • Page 280 The following example configures the instrument for 2-wire resistance measurements, triggers the instru- ment to take a measurement, and reads the measurement. The 1 kΩ range is selected with 0.1 Ω res- olution. MEAS:RES? 1000,0.1 Typical Response: +3.27150000E+02 Keysight True volt Series Operating and Service Guide...
  • Page 281 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 282 From 10 Ω to 1.2 kΩ, the instrument displays the actual resistance measurement with no beep. Above 1.2 kΩ, the instrument displays "OPEN" with no beep. The FETCh?, READ?, and MEASure:CONTinuity? queries return the measured resistance, regardless of its value. Keysight True volt Series Operating and Service Guide...
  • Page 283 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 284 0.3 and 0.8 V (unless beeper is disabled). If the signal exceeds 5.05 V, the front panel shows "OPEN", and the value returned from SCPI is 9.9E37. The FETCh?, READ?, and MEASure:DIODe? queries return the measured voltage, regardless of its value. Keysight True volt Series Operating and Service Guide...
  • Page 285 0.1 ppm × <range> (MINimum) 1 s The input signal for frequency or period measurements has an AC voltage component. By default, this command uses autorange to select the voltage range. With no signal applied, 0 is returned. Keysight True volt Series Operating and Service Guide...
  • Page 286 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 287 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 288 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 289 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...

  • Page 290: Mmemory Subsystem - General Purpose File Management

    The MMEMory subsystem's general purpose file management commands are listed below. The MMEMory subsystem also includes two other types of commands: STATe and PREFerence File Management Data Transfer Commands and Queries MMEMory:CATalog[:ALL]? MMEMory:CDIRectory MMEMory:COPY MMEMory:DELete MMEMory:MDIRectory MMEMory:MOVE MMEMory:RDIRectory Keysight True volt Series Operating and Service Guide...
  • Page 291 NOT begin with \ or /. Folder and file names cannot contain the following characters: \ / : * ? " < > | The combination of folder and file name cannot exceed 240 characters. Keysight True volt Series Operating and Service Guide...
  • Page 292 If no files exist, only < mem_used >,< mem_free > is returned. Because the instrument uses a small amount of space in the flash file system for internal use, the < mem_used > value is never zero. Keysight True volt Series Operating and Service Guide...
  • Page 293 If the destination file exists, it will be overwritten, unless marked as hidden or system. To copy a file to a file of the same name in a different folder, specify just the < drive > and/or < path > for < destination >. Keysight True volt Series Operating and Service Guide...
  • Page 294 To rename a file, specify the same folder for < file1 > and < file2 >. To move a file to a file of the same name in a different folder, you can specify just the < drive >:< path > for < file2 >. Keysight True volt Series Operating and Service Guide...

  • Page 295: Mmemory Subsystem - State And Preference Files

    Trend chart and histogram display settings Data Log and Digitize mode settings Temperature probe settings Thermocouple reference junction offset adjust- ment The MMEMory subsystem also includes two other types of commands: General Purpose File Management Data Transfer Keysight True volt Series Operating and Service Guide...
  • Page 296 NOT begin with \ or /. Folder and file names cannot contain the following characters: \ / : * ? " < > | The combination of folder and file name cannot exceed 240 characters. Keysight True volt Series Operating and Service Guide...
  • Page 297 Load nonvolatile I/O settings and user preferences from the specified file: MMEM:LOAD:PREF "INT:\MyPreferences" See the State File/Preferences File table for a listing of the information contained in each file. The specified folder must exist and cannot be marked as hidden or system. Keysight True volt Series Operating and Service Guide...
  • Page 298 When shipped from the factory, the instrument is configured to automatically recall the power-down state file when power is restored. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 299 The specified folder must exist and cannot be marked as hidden or system. The specified file cannot be empty or marked as hidden or system. Use this query before sending *RCL MMEMory:LOAD:STATe to determine whether a state has been stored in the file. Keysight True volt Series Operating and Service Guide...

  • Page 300: Mmemory Subsystem - Data Transfer Commands

    These commands transfer files into and out of the instrument's mass memory. The MMEMory subsystem also includes two other types of commands: General Purpose File Management STATe and PREFerence File Management Command Summary MMEMory:DOWNload:DATA MMEMory:DOWNload:FNAMe MMEMory:FORMat:READing:CSEParator MMEMory:FORMat:READing:INFormation MMEMory:FORMat:READing:RLIMit MMEMory:STORe:DATA MMEMory:UPLoad? Keysight True volt Series Operating and Service Guide...
  • Page 301 NOT begin with \ or /. Folder and file names cannot contain the following characters: \ / : * ? " < > | The combination of folder and file name cannot exceed 240 characters. Keysight True volt Series Operating and Service Guide...
  • Page 302 Specify tabs as the column separator: MMEMory:FORMat:READing:CSEParator TAB Applies only to the 34465A and 34470A. Affects the format for the .csv file created by the MMEMory:STORe:DATA command, or by the data logging/digitizing features in the 34465A/34470A. Keysight True volt Series Operating and Service Guide...
  • Page 303 ON - Readings are stored in files named dat00001.csv, dat00002.csv, dat00003.csv ... OFF - Readings are is stored in a single file named dat00001.csv. The file size is limited to 2 4.294967296 GBytes (the maximum allowed by the FAT32 file system). Keysight True volt Series Operating and Service Guide...
  • Page 304 Parameter Typical Return Any valid file name IEEE 488.2 definite-length block Upload the state file "Myfile.sta" in the root directory of the internal flash file system to the host computer: MMEM:UPL? "INT:\Myfile.sta" Keysight True volt Series Operating and Service Guide...

  • Page 305: Sample Subsystem

    No error is generated, but the Reading Mem Ovfl bit (bit 14) is set in the Ques- tionable Data Register's condition register (see Status System Introduction). Keysight True volt Series Operating and Service Guide...
  • Page 306 20,000), only 30,000 post-trigger samples are taken. This is because memory was reserved for 20,000 pretrigger samples. If a trigger occurs during a measurement, that measurement is considered to be a pretrigger sample. Keysight True volt Series Operating and Service Guide...
  • Page 307 IMMediate - The first sample starts one trigger delay time after the trigger, and then the trigger delay time is inserted between the first and second samples, the second and third, and so on: Keysight True volt Series Operating and Service Guide...
  • Page 308 "wait-for-trigger" state. The instrument sets the sample source to "IMM" after a Factory Reset ( *RST command) or an instru- ment Preset (SYSTem:PRESet command). See Also TRIGger:COUNt TRIGger:DELay TRIGger:SOURce SAMPle:COUNt SAMPle:TIMer Keysight True volt Series Operating and Service Guide...
  • Page 309 Basically, MIN is automatically determined so that the sample interval is always greater than the sampling time (see above illus- tration). Execute SAMPle:TIMer? MIN to determine the recommended interval for the current measurement configuration. Keysight True volt Series Operating and Service Guide...
  • Page 310 However, the value is rounded to the nearest step. For dc measurements, the step size is 1 µs. For ac measurements, it is ac bandwidth dependent. The instrument sets the sample timer to 1 second after a reset ( *RST command) or an instrument pre- (SYSTem:PRESet command). See Also TRIGger:COUNt Keysight True volt Series Operating and Service Guide...
  • Page 311 SCPI Programming Reference TRIGger:DELay TRIGger:SOURce SAMPle:COUNt SAMPle:SOURce Keysight True volt Series Operating and Service Guide...

  • Page 312: Sense Subsystem Introduction

    Changing the measurement function disables scaling, limit testing, histogram, statistics, and trend chart data collection (CALC:SCAL:STAT, CALC:LIM:STAT, CALC:TRAN:HIST:STAT, CALC:AVER:STAT, CALC:TCH:STAT set to OFF). This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 313 Enabling the scaling function also enables automatic null value selection ([SENSe:]CAPa- citance:NULL:VALue:AUTO). To set a fixed null value, use: [SENSe:]CAPacitance:NULL:VALue. The instrument disables the null function after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 314 To use the null value, turn on the null state with the [Sense:]CAPacitance:NULL[:STATe] command. This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 315 Autoranging goes down a range at less than 10% of range and up a range at greater than 120% of range. For capacitance measurements only, when autorange is off, the instrument does not report an Keysight True volt Series Operating and Service Guide...
  • Page 316 If the input signal is greater than can be measured on the specified fixed range, the instrument displays Overload on front panel and returns "9.9E37" from the remote interface. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 317 "CALCulate:DATA" - The measurement value before any math operations are done (including NULL). READ? INITiate to start the measurement. Use [SENSe:]DATA2? to retrieve the secondary meas- urement. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 318 SCPI Programming Reference [SENSe:]CURRent Subsystem This subsystem configures AC and DC current measurements. Command Summary [SENSe:]CURRent:AC:BANDwidth [SENSe:]CURRent:{AC|DC}:NULL[:STATe] [SENSe:]CURRent:{AC|DC}:NULL:VALue [SENSe:]CURRent:{AC|DC}:NULL:VALue:AUTO [SENSe:]CURRent:{AC|DC}:RANGe [SENSe:]CURRent:{AC|DC}:RANGe:AUTO [SENSe:]CURRent:{AC|DC}:TERMinals [SENSe:]CURRent:AC:SECondary [SENSe:]CURRent[:DC]:APERture [SENSe:]CURRent[:DC]:APERture:ENABled [SENSe:]CURRent[:DC]:NPLC [SENSe:]CURRent[:DC]:RESolution [SENSe:]CURRent[:DC]:SECondary [SENSe:]CURRent[:DC]:ZERO:AUTO [SENSe:]CURRent:SWITch:MODE Keysight True volt Series Operating and Service Guide...
  • Page 319 20 Hz - 300 kHz (Medium) 0.25 s/measurement 200 Hz - 300 kHz (Fast) 0.025 s/measurement This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 320 Enabling the scaling function also enables automatic null value selection ([SENSe:]CURRent: {AC|DC}:NULL:VALue:AUTO ON). To set a fixed null value, use: [SENSe:]CURRent:{AC|DC}:NULL:VALue. The instrument disables the null function after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 321 To use the null value, the null state must be on ([SENSe:]CURRent:{AC|DC}:NULL:STATe ON). This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 322 The instrument enables automatic null value selection when the null function is enabled ([SENSe:]CURRent:{AC|DC}:NULL:STATe ON). This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 323 For example, if you have a measurement with 1 µA resolution on the 100 mA range, chan- ging to the 1 A range results in a resolution of 10 µA. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 324 10 A range, but it does not affect the values of [SENSe:]CURRent: {AC|DC}:RANGe or [SENSe:]CURRent:{AC|DC}:RANGe:AUTO. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 325 1 µA resolution on the 1 A range, changing to the 10 A terminals results in a resolution of 10 µA. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 326 (Without the DIG option) 200 µs to 1 s (2 µs resolution), default: 100 ms. (With the DIG +1.00000000E- option) 20 µs to 1 s (2 µs resolution), default: 100 ms. Enable aperture time mode, set the aperture time to 300 ms: CURR:APER:ENAB ON CURR:DC:APER 300E-03 Keysight True volt Series Operating and Service Guide...
  • Page 327 This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 328 Setting the integration time also sets the measurement resolution. Resolution Table shows the rela- tionship between integration time and resolution. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). See Also [SENSe:]CURRent[:DC]:RESolution Keysight True volt Series Operating and Service Guide...
  • Page 329 To achieve normal mode (line frequency noise) rejection, use a resolution that corresponds to an integ- ration time that is an integral number of power line cycles. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). See Also [SENSe:]CURRent[:DC]:NPLC Keysight True volt Series Operating and Service Guide...
  • Page 330 AC and DC current measurements from remote, program each function separately, see CONFigure:CURRent:{AC|DC}. "PTPeak" - The peak-to-peak, maximum, and minimum values of the input signal. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 331 MEASure:CURRent:DC?. Autozero is automatically turned OFF when you select an integration time less than 1 PLC with these commands. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 332 The switch mode applies to the 3A current terminals only. The 10A terminals are always effectively in FAST mode. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 333 The instrument clears all measurements from reading memory when the measurement configuration MEASure:< function changes, or when any of these commands are executed: INITiate, >?, READ?, *RST, SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 334 DCV reading, Min Peak, Max Peak, Peak-to-Peak) Later, clear peak-to-peak secondary measurement data. Make and retrieve measurements. DATA2:CLE READ?;DATA2? Typical Response: +1.29177114E-03;+6.07221096E-04,+3.43677658E-03,+2.82955548E-03 (Data returned in this order: DCV reading, Min Peak, Max Peak, Peak-to-Peak) Keysight True volt Series Operating and Service Guide...
  • Page 335 SCPI Programming Reference [SENSe:]{FREQuency|PERiod} Subsystem This subsystem configures frequency and period measurements. Command Summary [SENSe:]{FREQuency|PERiod}:APERture [SENSe:]{FREQuency|PERiod}:NULL[:STATe] [SENSe:]{FREQuency|PERiod}:NULL:VALue [SENSe:]{FREQuency|PERiod}:NULL:VALue:AUTO [SENSe:]{FREQuency|PERiod}:RANGe:LOWer [SENSe:]{FREQuency|PERiod}:TIMeout:AUTO [SENSe:]{FREQuency|PERiod}:VOLTage:RANGe [SENSe:]{FREQuency|PERiod}:VOLTage:RANGe:AUTO [SENSe:]FREQuency:SECondary [SENSe:]PERiod:SECondary Keysight True volt Series Operating and Service Guide...
  • Page 336 1 ppm × <range> 100 ms 1 ppm × <range> (MINimum) 0.1 ppm × <range> (MINimum) 1 s This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 337 Enabling the scaling function also enables automatic null value selection ([SENSe:]{FREQuency|PERi- od}:NULL:VALue:AUTO ON). To set a fixed null value, use: [SENSe:]{FREQuency|PERiod}:NULL:VALue. The instrument disables the null function after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 338 Configure frequency measurements, using the null function to subtract 1 kHz from them. Make and read two measurements: CONF:FREQ FREQ:NULL:STAT ON;VAL 1 kHz SAMP:COUN 2 READ? Typical Response: +1.04530000E+00,+1.04570000E+00 Make a second set of measurements using automatic null value selection: FREQ:NULL:VAL:AUTO ON READ? Typical Response: +0.00000000E+00,+0.01420000E+00 Keysight True volt Series Operating and Service Guide...

  • Page 339: Conf:freq

    20 Hz - 300 kHz (Medium) 0.25 s/measurement 200 Hz - 300 kHz (Fast) 0.025 s/measurement This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 340: Freq:null:stat On;Val 1 Khz

    This setting is non-volatile; it will not be changed by power cycling or *RST or SYSTem:PRESet. Keysight True volt Series Operating and Service Guide...
  • Page 341 Overload on the front panel and returns "9.9E37" from the remote interface. Autor- anging can be enabled for the input voltage. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 342 Autoranging goes down a range at less than 10% of range and up a range at greater than 120% of range. Selecting a fixed range ([SENSe:]< function >:RANGe) disables autoranging. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 343 “FREQuency” - The frequency measurement of the input signal. "VOLTage:AC" - The AC voltage measurement of the input signal. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 344 SCPI Programming Reference [SENSe:]{RESistance|FRESistance} Subsystem This subsystem configures two- and four-wire resistance measurements. Command Summary [SENSe:]{RESistance|FRESistance}:APERture [SENSe:]{RESistance|FRESistance}:APERture:ENABled [SENSe:]{RESistance|FRESistance}:NPLC [SENSe:]{RESistance|FRESistance}:NULL[:STATe] [SENSe:]{RESistance|FRESistance}:NULL:VALue [SENSe:]{RESistance|FRESistance}:NULL:VALue:AUTO [SENSe:]{RESistance|FRESistance}:OCOMpensated [SENSe:]{RESistance|FRESistance}:POWer:LIMit[:STATe] [SENSe:]{RESistance|FRESistance}:RANGe [SENSe:]{RESistance|FRESistance}:RANGe:AUTO [SENSe:]{RESistance|FRESistance}:RESolution [SENSe:]{FRESistance|RESistance}:SECondary [SENSe:]RESistance:ZERO:AUTO Keysight True volt Series Operating and Service Guide...
  • Page 345 [SENSe:]< function >:APERture command sets the [SENSe:]< function >:APERture:ENABled command to 1 (ON); sending [SENSe:]< function >:NPLC sets it to 0 (OFF). This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 346 This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 347 Setting the integration time also sets the measurement resolution. Resolution Table shows the rela- tionship between integration time and resolution. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 348 Enabling the scaling function also enables automatic null value selection (SENSe: {RESistance|FRESistance}:NULL:VALue:AUTO ON). To set a fixed null value, use: [SENSe:]{RESistance|FRESistance}:NULL:VALue. The instrument disables the null function after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...

  • Page 349: Specifying A Null Value Disables Automatic Null Value Selection

    To use the null value, the null state must be on ([SENSe:]{RESistance|FRESistance}:NULL:STATe ON). This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 350 The instrument enables automatic null value selection when the null function is enabled ([SENSe:] {RESistance|FRESistance}:NULL:STATe ON). This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 351 Applies only to resistance measurements on the 100Ω, 1 kΩ, 10 kΩ and 100 kΩ ranges. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 352 If the input signal is greater than can be measured on the specified manual range, the instrument dis- plays the word Overload on front panel and returns "9.9E37" from the remote interface. Keysight True volt Series Operating and Service Guide...
  • Page 353 With autoranging enabled, the instrument selects the range based on the input signal. Selecting a fixed range ([SENSe:]< function >:RANGe) disables autoranging. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 354 To achieve normal mode (line frequency noise) rejection, use a resolution that corresponds to an integ- ration time that is an integral number of power line cycles. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). See Also [SENSe:]{RESistance|FRESistance}:NPLC Keysight True volt Series Operating and Service Guide...
  • Page 355 (including NULL). READ? INITiate to start the measurement. Use [SENSe:]DATA2? to retrieve the secondary meas- urement. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 356 MEASure:{RESistance|FRESistance}?. Autozero is automatically turned OFF when you select an integration time less than 1 PLC with these commands. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 357 SCPI Programming Reference [SENSe:]TEMPerature Subsystem This subsystem configures temperature measurements. Command Summary [SENSe:]TEMPerature:APERture [SENSe:]TEMPerature:APERture:ENABled [SENSe:]TEMPerature:NPLC [SENSe:]TEMPerature:NULL[:STATe] [SENSe:]TEMPerature:NULL:VALue [SENSe:]TEMPerature:NULL:VALue:AUTO [SENSe:]TEMPerature:SECondary [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:OCOMpensated [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:POWer:LIMit[:STATe] [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:RESistance[:REFerence] [SENSe:]TEMPerature:TRANsducer:{FTHermistor|THERmistor}:POWer:LIMit[:STATe] [SENSe:]TEMPerature:TRANsducer:{FTHermistor|THERmistor}:TYPE [SENSe:]TEMPerature:TRANsducer:TCouple:CHECk [SENSe:]TEMPerature:TRANsducer:TCouple:RJUNction [SENSe:]TEMPerature:TRANsducer:TCouple:RJUNction:OFFSet:ADJust [SENSe:]TEMPerature:TRANsducer:TCouple:RJUNction:TYPE [SENSe:]TEMPerature:TRANsducer:TCouple:TYPE [SENSe:]TEMPerature:TRANsducer:TYPE [SENSe:]TEMPerature:ZERO:AUTO Keysight True volt Series Operating and Service Guide...

  • Page 358: On|1|Off|0}. Default: Off

    This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 359 Setting the integration time also sets the measurement resolution. Resolution Table shows the rela- tionship between integration time and resolution. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 360: 0 (Off) Or 1 (On)

    To use the null value, the null state must be on ([SENSe:]TEMPerature:NULL:STATe ON). This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...

  • Page 361: Make A Second Set Of Measurements Using Automatic Null Value Selection

    The instrument enables automatic null value selection when the null function is enabled ([SENSe:]TEMPerature:NULL:STATe ON). This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 362 (thermocouple measurements apply to the 34465A and 34470A only). READ? INITiate to start the measurement. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 363 Typical Response: +1.05451008E+01,+1.07391062E+01 Applies only to the 34465A and 34470A. Affects both 2-wire and 4-wire resistance measurements. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 364 100.1 Ω. Make and read two meas- urements: CONF:TEMP FRTD TEMP:TRAN:FRTD:RES 100.1 SAMP:COUN 2 READ? Typical Response: +1.04530000E+02,+1.04570000E+02 This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 365 TEMP:TRAN:FRTD:RES 100.1 SAMP:COUN 2 READ? Typical Response: +2.54530000E+01,+2.54570000E+01 TCouple applies only to the 34465A and 34470A. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 366 Configure K-type thermocouple measurements. Select fixed reference junction and set reference junction temperature to +20 °C. Enable thermocouple check. Make and read two measurements: CONF:TEMP TC,K TEMP:TRAN:TC:RJUN:TYPE FIX TEMP:TRAN:TC:RJUN 20.0 TEMP:TRAN:TC:CHEC ON SAMP:COUN 2 READ? Typical Response: +3.31785468E+00,+3.61554515E+00 Keysight True volt Series Operating and Service Guide...
  • Page 367 This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 368 Celsius regardless of the temperature units currently selected (see UNIT:TEMPerature command). You can read the internal reference junction temperature using the SYSTem:TEMPerature command. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 369 FTHermistor command form makes no difference, as both commands affect the same parameter. Parameter Typical Return 5000 (only available choice) +5000 Configure 4-wire thermistor measurements. Make and read two measurements: CONF:TEMP FTH TEMP:TRAN:FTH:TYPE 5000 SAMP:COUN 2 READ? Typical Response: +1.04530000E+02,+1.04570000E+02 Keysight True volt Series Operating and Service Guide...
  • Page 370 MEASure:TEMPerature?. Autozero is automatically turned OFF when you select an integration time less than 1 PLC with these commands. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 371 SCPI Programming Reference [SENSe:]VOLTage Subsystem This subsystem configures AC voltage, DC voltage, and ratio measurements. Command Summary [SENSe:]VOLTage:AC:BANDwidth [SENSe:]VOLTage:{AC|DC}:NULL[:STATe] [SENSe:]VOLTage:{AC|DC}:NULL:VALue [SENSe:]VOLTage:{AC|DC}:NULL:VALue:AUTO [SENSe:]VOLTage:{AC|DC}:RANGe [SENSe:]VOLTage:{AC|DC}:RANGe:AUTO [SENSe:]VOLTage:AC:SECondary [SENSe:]VOLTage[:DC]:APERture [SENSe:]VOLTage[:DC]:APERture:ENABled [SENSe:]VOLTage[:DC]:IMPedance:AUTO [SENSe:]VOLTage[:DC]:NPLC [SENSe:]VOLTage[:DC]:RATio:SECondary [SENSe:]VOLTage[:DC]:RESolution [SENSe:]VOLTage[:DC]:SECondary [SENSe:]VOLTage[:DC]:ZERO:AUTO Keysight True volt Series Operating and Service Guide...
  • Page 372 20 Hz - 300 kHz (Medium) 0.6250 s/measurement 200 Hz - 300 kHz (Fast) 0.0250 s/measurement This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 373 To set a fixed null value, use: [SENSe:]VOLTage:{AC|DC}:NULL:VALue. The null function is not available for DC ratio measurements. The instrument disables the null function after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 374 To use the null value, the null state must be on ([SENSe:]VOLTage:{AC|DC}:NULL:STATe ON). The null function is not available for DC ratio measurements. This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 375 The instrument enables automatic null value selection when the null function is enabled ([SENSe:]VOLTage:{AC|DC}:NULL:STATe ON). The null function is not available for DC ratio measurements. This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or CONFigure function. Keysight True volt Series Operating and Service Guide...
  • Page 376 Overload on front panel and returns "9.9E37" from the remote interface. The instrument is set to the default range, with autoranging enabled ([SENSe:]VOLTage: {AC|DC}:RANGe:AUTO ON), after a Factory Reset (*RST) or an Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 377 With autoranging enabled, the instrument selects the range based on the input signal. Selecting a fixed range ([SENSe:]< function >:RANGe) disables autoranging. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 378 (Without the DIG option) 200 µs to 1 s (2 µs resolution), default: 100 ms. (With the DIG +1.00000000E- option) 20 µs to 1 s (2 µs resolution), default: 100 ms. Enable aperture time mode, set the aperture time to 300 ms: VOLT:APER:ENAB ON VOLT:DC:APER 300E-03 Keysight True volt Series Operating and Service Guide...
  • Page 379 This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 380 The 100 V and 1000 V ranges remain at a 10 MΩ input impedance. CONFigure MEASure? commands automatically select "AUTO OFF". This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 381 Setting the integration time also sets the measurement resolution. Resolution Table shows the rela- tionship between integration time and resolution. See [SENSe:]VOLTage[:DC]:RESolution. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 382 To achieve normal mode (line frequency noise) rejection, use a resolution that corresponds to an integ- ration time that is an integral number of power line cycles. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 383 AC and DC voltage measurements from remote, program each function separately, see CONFigure[:VOLTage]:{AC|DC}. "PTPeak" - The peak-to-peak, maximum, and minimum values of the input signal. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 384 MEASure:VOLTage:DC:RATio?. Autozero is automatically turned OFF when you select an integration time less than 1 PLC with these commands. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 385: Status Subsystem

    SCPI Programming Reference STATus Subsystem Keysight True volt Series Operating and Service Guide...
  • Page 386 The most recent measurement failed the upper limit test. Not Used 8192 (Reserved for future use) Memory Overflow 16384 Reading memory is full. One or more (oldest) measurements have been lost. Not Used 32768 (Reserved for future use) Keysight True volt Series Operating and Service Guide...
  • Page 387 Set if any remote interface has an error in its error queue; cleared otherwise. Not Used 16384 (Reserved for future use) Not Used 32768 "0" is returned. Command Summary STATus:OPERation:CONDition? STATus:OPERation:ENABle STATus:OPERation[:EVENt]? STATus:PRESet STATus:QUEStionable:CONDition? STATus:QUEStionable:ENABle STATus:QUEStionable[:EVENt]? Keysight True volt Series Operating and Service Guide...
  • Page 388 The < enable > setting is nonvolatile; it does not change after a Factory Reset (*RST) , Instrument Pre- set (SYSTem:PRESet), Status Preset (STATus:PRESet) or Clear Status (*CLS). *PSC command controls whether the enable register is cleared at power on. Keysight True volt Series Operating and Service Guide...
  • Page 389 +4096 Read the condition register (bit 12 is set): STAT:QUES:COND? The condition register bits reflect the current condition. If a condition goes away, the corresponding bit is cleared in the condition register. Keysight True volt Series Operating and Service Guide...
  • Page 390 (none) +1024 Read the event register (bit 10 is set): STAT:QUES? Once a bit is set, it remains set until cleared by reading the event register or by sending *CLS (clear status). Keysight True volt Series Operating and Service Guide...

  • Page 391: System Subsystem - General Purpose Commands

    The SYSTem subsystem includes general commands (listed below), license management commands, and remote interface configuration commands. Command Summary SYSTem:ACALibration:DATE? SYSTem:ACALibration:TEMPerature? SYSTem:ACALibration:TIME? SYSTem:BEEPer[:IMMediate] SYSTem:BEEPer:STATe SYSTem:CLICk:STATe SYSTem:DATE SYSTem:ERRor[:NEXT]? SYSTem:HELP? SYSTem:IDENtify SYSTem:LABel SYSTem:LFRequency? SYSTem:LOCal SYSTem:PRESet SYSTem:SECurity:COUNt? SYSTem:SECurity:IMMediate SYSTem:TEMPerature? SYSTem:TIME SYSTem:UPTime? SYSTem:VERSion? SYSTem:WMESsage Keysight True volt Series Operating and Service Guide...
  • Page 392 You can perform this query regardless of whether the instrument is secured. This setting is non-volatile; it will not be changed by power cycling or *RST or SYSTem:PRESet. *CAL? to perform autocal. Keysight True volt Series Operating and Service Guide...
  • Page 393 (none) Issue a single beep: SYST:BEEP Programmed beeps may be useful for program development and troubleshooting. You can issue a beep with this command regardless of the current beeper state (SYSTem:BEEPer- :STATe). Keysight True volt Series Operating and Service Guide...
  • Page 394 Does not affect the beeper for diode and continuity tests, errors and so on. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 395 *RST or SYSTem:PRESet. The real-time clock does not adjust itself for time zone changes or daylight savings time. Be sure to set the date and time when you first receive your instrument. Keysight True volt Series Operating and Service Guide...
  • Page 396 < error code >,< error string > Where: < error code > = a positive or negative integer < error string > = a quoted ASCII string up to 255 characters See Also *SRE Keysight True volt Series Operating and Service Guide...
  • Page 397 Syntax for each command is found in the Command Quick Reference. The list may include commands or queries not described in this document. These are deprecated com- mands included for compatibility with older instruments. Keysight True volt Series Operating and Service Guide...
  • Page 398 "Keysight Technologies,34465A, ..." "Keysight Technologies,34470A, ..." If you have an older Agilent 34460A or 34461A and upgrade to the new (Keysight) firmware, your instrument continues to respond with the manufacturer name “Agilent”, not “Keysight” until you set the front panel SCPI ID to 34460A or 34461A, send the...
  • Page 399 *RST or SYSTem:PRESet. SYSTem:LOCal Sets the instrument state to local, clears the Remote display annunciator, and enables front-panel oper- ation. Parameter Typical Return (none) (none) Set the instrument state to local: SYST:LOC Keysight True volt Series Operating and Service Guide...
  • Page 400 The act of securing or unsecuring the instrument does not increment the counter. Be sure to read the security count upon receiving your instrument. See Also CALibration:COUNt? Keysight True volt Series Operating and Service Guide...
  • Page 401 Files). Increments the security count. SYSTem:TEMPerature? Returns the instrument's internal temperature in °C. Parameter Typical Return (none) +2.85000000E+01 Return the instrument's internal temperature: SYST:TEMP? The value returned is not affected by UNIT:TEMPerature. Keysight True volt Series Operating and Service Guide...
  • Page 402 Returns the version of SCPI (Standard Commands for Programmable Instruments) that the instrument complies with. There is no front panel equivalent. See Introduction to the Introduction to the SCPI Lan- guage for details. Parameter Typical Return (none) 1994.0 Return the SCPI version: SYST:VERS? Keysight True volt Series Operating and Service Guide...
  • Page 403 This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). This parameter is set to its default value when the instrument is shipped from the factory and after SYSTem:SECurity:IMMediate. Keysight True volt Series Operating and Service Guide...

  • Page 404: System Subsystem - I/O Configuration

    I/O locking commands, license management commands, and remote interface configuration commands (listed below). Command Summary SYSTem:COMMunicate:ENABle SYSTem:COMMunicate:GPIB:ADDRess SYSTem:COMMunicate:LAN:CONTrol? SYSTem:COMMunicate:LAN:DHCP SYSTem:COMMunicate:LAN:DNS[{1|2}] SYSTem:COMMunicate:LAN:DOMain? SYSTem:COMMunicate:LAN:GATeway SYSTem:COMMunicate:LAN:HOSTname SYSTem:COMMunicate:LAN:IPADdress SYSTem:COMMunicate:LAN:MAC? SYSTem:COMMunicate:LAN:SMASk SYSTem:COMMunicate:LAN:TELNet:PROMpt SYSTem:COMMunicate:LAN:TELNet:WMESsage SYSTem:COMMunicate:LAN:UPDate SYSTem:COMMunicate:LAN:WINS[{1|2}] SYSTem:USB:HOST:ENABle Keysight True volt Series Operating and Service Guide...
  • Page 405 LAN or option 3446LANU. The interface enable settings are stored in nonvolatile memory. They do not change when power has been off, after a Factory Reset (*RST) or after an Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 406 This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). This parameter is set to its default value when the instrument is shipped from the factory and after SYSTem:SECurity:IMMediate. Keysight True volt Series Operating and Service Guide...
  • Page 407 If a DHCP LAN address is not assigned by a DHCP server, then an Auto-IP address is obtained after approximately 2 minutes. An Auto-IP address has the form 169.254.nnn.nnn. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 408 Dynamic DNS service at power-on. A null string ("") indicates that no domain name is assigned. On the 34460A, this requires option 34460A-LAN or option 3446LANU. Keysight True volt Series Operating and Service Guide...
  • Page 409 However, if the DHCP server fails to assign a valid address, the currently configured default gateway is used. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 410 This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). This parameter is set to its default value when the instrument is shipped from the factory and after SYSTem:SECurity:IMMediate. Keysight True volt Series Operating and Service Guide...
  • Page 411 The MAC address is also known as the link-layer address, the Ethernet (station) address, LANIC ID or Hardware Address. This is an unchangeable 48-bit address assigned by the manufacturer to each unique Internet device. Keysight True volt Series Operating and Service Guide...
  • Page 412 STATic: returns static address from non-volatile memory. This address is used if DHCP is disabled or unavailable. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 413 To exit a Telnet session, press < Ctrl-D >. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). SYSTem:SECurity:IMMediate sets this parameter to its default value. Keysight True volt Series Operating and Service Guide...
  • Page 414 Typical Return Quoted string of up to 63 characters. "Welcome to the Telnet Ses- sion" Default: "Welcome to Keysight's <instrument model number> Digital Multimeter" Define a welcome message: SYST:COMM:LAN:TELN:WMES "Welcome to the Telnet Session" On the 34460A, this requires option 34460A-LAN or option 3446LANU.
  • Page 415 SYST:COMM:LAN:DHCP OFF SYST:COMM:LAN:DNS "198.105.232.4" SYST:COMM:LAN:DNS2 "198.105.232.5" SYST:COMM:LAN:GAT "198.105.232.1" SYST:COMM:LAN:HOST "LAB1-DMM" SYST:COMM:LAN:IPAD "198.105.232.101" SYST:COMM:LAN:SMAS "255.255.255.0" SYST:COMM:LAN:WINS "198.105.232.4" SYST:COMM:LAN:WINS "198.105.232.5" SYST:COMM:LAN:UPD The following example configures the instrument back to use DHCP. SYST:COMM:LAN:DHCP ON SYST:COMM:LAN:UPD Keysight True volt Series Operating and Service Guide...
  • Page 416 CURRent: returns address currently being used by the instrument. STATic: returns static address from non-volatile memory. This address is used if DHCP is disabled or unavailable. Keysight True volt Series Operating and Service Guide...
  • Page 417 If the front panel USB host port is disabled, it cannot be used to store or load measurements, state files, preferences or other files or to perform firmware update. This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru- ment Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 418: System Subsystem Lock Commands

    State = locked, Count = 1 (FROM USB) SYST:LOCK:REL State = unlocked, Count = 0 For each successful lock request, a lock release is required. Two requests require two releases. Command Summary SYSTem:LOCK:NAME? SYSTem:LOCK:OWNer? SYSTem:LOCK:RELease SYSTem:LOCK:REQuest? Keysight True volt Series Operating and Service Guide...
  • Page 419 Interface Locking Example When a lock is active, Bit 10 in the Standard Operation Register will be set (STATus:OPERa- tion:CONDition?). When the lock is released on all I/O interfaces, this bit will be cleared. Keysight True volt Series Operating and Service Guide...
  • Page 420 Granting a lock sets Bit 10 in the Standard Operation Register (STATus:OPERation:CONDition?). In addition, the entire instrument front panel, including the Local key, is locked out while a lock is in place ("Front panel locked." is displayed). Keysight True volt Series Operating and Service Guide...

  • Page 421: System Subsystem License Commands

    Parameter Typical Return (none) "LAN","SEC" Return currently licensed options: SYST:LIC:CAT? This query returns a string with the following format: 34460A: "GPB","LAN","SEC" 34461A: "GPB","SEC" 34465A/70A: "GPB","SEC","DIG","MEM" Options vary by model, as shown here. Keysight True volt Series Operating and Service Guide...
  • Page 422 "DIG", "MEM", or "SEC" (34465A/70A) Return description for option 34460A-LAN or option 3446LANU: SYST:LIC:DESC? "LAN" Valid option names are double quoted strings representing the installed licensed options. Installed options can be easily identified using SYSTem:LICense:CATalog?. Keysight True volt Series Operating and Service Guide...
  • Page 423 Returns a definite-length block containing multi-line ASCII text, including carriage returns and line feeds. SYSTem:LICense:ERRor:COUNt? Returns the number of license errors generated by SYSTem:LICense:INSTall. Parameter Typical Return (none) Return number of license errors: SYST:LIC:ERR:COUN? Keysight True volt Series Operating and Service Guide...
  • Page 424 "\" or "/" and start at the root folder of < drive >. If < drive > is omitted, < path > is relative to the folder specified by MMEMory:CDIRectory. Relative paths must NOT begin with \ or /. Keysight True volt Series Operating and Service Guide...
  • Page 425 SCPI Programming Reference The < folder > parameter cannot exceed 240 characters. The specified folder must exist and cannot be marked as hidden or system. Keysight True volt Series Operating and Service Guide...

  • Page 426: Trigger Subsystem

    That is, turn autorange off ([SENSe:]< function >:RANGe:AUTO OFF) or set a fixed range using the [SENSe:]< function >:RANGe, CONFigure, or MEASure command. Command Summary TRIGger:COUNt TRIGger:DELay TRIGger:DELay:AUTO TRIGger:LEVel TRIGger:SLOPe TRIGger:SOURce Keysight True volt Series Operating and Service Guide...
  • Page 427 (front panel), the instrument ignores the trigger count setting; however, when you return to remote, the trigger count returns to the previous value you selected. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 428 If you have configured the instrument for more than one measurement per trigger (SAMPle:COUNt >1), the delay is inserted after the trigger and between consecutive measurements. The instrument selects automatic trigger delay after a Factory Reset (*RST) or an Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 429 RTD and thermistor temperature measurements. Resistance and temperature meas- urements must have offset compensation and low power disabled. To use the trigger level you must select INTernal as the trigger source with the TRIGger:SOURce com- mand. Keysight True volt Series Operating and Service Guide...
  • Page 430 0 to +3.6 A ange 10 A terminals 0 to +12 A FREQuency *N/A 3 Hz to 300 kHz PERiod *N/A 3.33333333 µs to 0.333333333 s *N/A = Not Applicable. See Also TRIGger:DELay TRIGger:SOURce Keysight True volt Series Operating and Service Guide...
  • Page 431 Typical Response: +1.00520000E+01, … (50 measurements) On the 34460A, this requires option 34460A-LAN or option 3446LANU. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 432 That is, turn autorange off ([SENSe:]< function >:RANGe:AUTO OFF) or set a fixed range using the [SENSe:]< function >:RANGe, CONFigure, or MEASure command. This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...

  • Page 433: Command Quick Reference

    MEASure:CURRent:{AC|DC}? [{<range>|AUTO|MIN|MAX|DEF} [, {<resolution>|MIN|MAX|DEF}]] MEASure:DIODe? MEASure:{FREQuency|PERiod}? [{<range>|MIN|MAX|DEF} [, {<resolution>|MIN|MAX|DEF}]] MEASure:{RESistance|FRESistance}? [{<range>|AUTO|MIN|MAX|DEF} [, {<resolution>|MIN|MAX|DEF}]] MEASure:TEMPerature? [{FRTD|RTD|FTHermistor|THERmistor|TCouple|DEFault} [, {<type>|DEFault} [,1 , {<resolution>|MIN|MAX|DEF}]]]] MEASure[:VOLTage]:{AC|DC}? [{<range>|AUTO|MIN|MAX|DEF} [, {<resolution>|MIN|MAX|DEF}]] MEASure[:VOLTage][:DC]:RATio? [{<range>|AUTO|MIN|MAX|DEF} [, {<resolution>|MIN|MAX|DEF}]] Measurement Configuration Commands [SENSe:]FUNCtion[:ON] "<function>" [SENSe:]FUNCtion[:ON]? Keysight True volt Series Operating and Service Guide...
  • Page 434 [SENSe:]VOLTage:{AC|DC}:RANGe:AUTO {OFF|ON|ONCE} [SENSe:]VOLTage:{AC|DC}:RANGe:AUTO? [SENSe:]VOLTage:AC:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"VOLTage[:DC]"} [SENSe:]VOLTage:AC:SECondary? [SENSe:]VOLTage[:DC]:APERture {<seconds>|MIN|MAX|DEF} [SENSe:]VOLTage[:DC]:APERture? [{MIN|MAX|DEF}] [SENSe:]VOLTage[:DC]:APERture:ENABled {OFF|ON} [SENSe:]VOLTage[:DC]:APERture:ENABled? [SENSe:]VOLTage[:DC]:IMPedance:AUTO {OFF|ON} [SENSe:]VOLTage[:DC]:IMPedance:AUTO? [SENSe:]VOLTage[:DC]:NPLC {<PLCs>|MIN|MAX|DEF} [SENSe:]VOLTage[:DC]:NPLC? [{MIN|MAX|DEF}] [SENSe:]VOLTage[:DC]:RATio:SECondary {"OFF"|"CALCulate:DATA"|"SENSe:DATA"} [SENSe:]VOLTage[:DC]:RATio:SECondary? [SENSe:]VOLTage[:DC]:RESolution {<resolution>|MIN|MAX|DEF} [SENSe:]VOLTage[:DC]:RESolution? [{MIN|MAX|DEF}] [SENSe:]VOLTage[:DC]:SECondary {"OFF"|"CALCulate:DATA"|"VOLTage:AC"|"PTPeak"} [SENSe:]VOLTage[:DC]:SECondary? [SENSe:]VOLTage[:DC]:ZERO:AUTO {OFF|ON|ONCE} [SENSe:]VOLTage[:DC]:ZERO:AUTO? Keysight True volt Series Operating and Service Guide...
  • Page 435 [SENSe:]{RESistance|FRESistance}:NULL[:STATe] {OFF|ON} [SENSe:]{RESistance|FRESistance}:NULL[:STATe]? [SENSe:]{RESistance|FRESistance}:NULL:VALue {<value>|MIN|MAX|DEF} [SENSe:]{RESistance|FRESistance}:NULL:VALue? [{MIN|MAX|DEF}] [SENSe:]{RESistance|FRESistance}:NULL:VALue:AUTO {OFF|ON} [SENSe:]{RESistance|FRESistance}:NULL:VALue:AUTO? [SENSe:]{RESistance|FRESistance}:OCOMpensated {OFF|ON} [SENSe:]{RESistance|FRESistance}:OCOMpensated? [SENSe:]{RESistance|FRESistance}:POWer:LIMit[:STATe] {OFF|ON} [SENSe:]{RESistance|FRESistance}:POWer:LIMit[:STATe]? [SENSe:]{RESistance|FRESistance}:RANGe {<range>|MIN|MAX|DEF} [SENSe:]{RESistance|FRESistance}:RANGe? [{MIN|MAX|DEF}] [SENSe:]{RESistance|FRESistance}:RANGe:AUTO {OFF|ON|ONCE} [SENSe:]{RESistance|FRESistance}:RANGe:AUTO? [SENSe:]{RESistance|FRESistance}:RESolution {<resolution>|MIN|MAX|DEF} [SENSe:]{RESistance|FRESistance}:RESolution? [{MIN|MAX|DEF}] [SENSe:]{FRESistance|RESistance}:SECondary {"OFF"|"CALCulate:DATA"} [SENSe:]{FRESistance|RESistance}:SECondary? [SENSe:]RESistance:ZERO:AUTO {OFF|ON|ONCE} [SENSe:]RESistance:ZERO:AUTO? Keysight True volt Series Operating and Service Guide...
  • Page 436 [SENSe:]CURRent:{AC|DC}:RANGe:AUTO {OFF|ON|ONCE} [SENSe:]CURRent:{AC|DC}:RANGe:AUTO? [SENSe:]CURRent:{AC|DC}:TERMinals {3|10} [SENSe:]CURRent:{AC|DC}:TERMinals? [SENSe:]CURRent:AC:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"CURRent[:DC]"} [SENSe:]CURRent:AC:SECondary? [SENSe:]CURRent[:DC]:APERture {<seconds>|MIN|MAX|DEF} [SENSe:]CURRent[:DC]:APERture? [{MIN|MAX|DEF}] [SENSe:]CURRent[:DC]:APERture:ENABled {OFF|ON} [SENSe:]CURRent[:DC]:APERture:ENABled? [SENSe:]CURRent[:DC]:NPLC {<PLCs>|MIN|MAX|DEF} [SENSe:]CURRent[:DC]:NPLC? [{MIN|MAX|DEF}] [SENSe:]CURRent[:DC]:RESolution {<resolution>|MIN|MAX|DEF} [SENSe:]CURRent[:DC]:RESolution? [{MIN|MAX|DEF}] [SENSe:]CURRent[:DC]:SECondary {"OFF"|"CALCulate:DATA"|"CURRent:AC"|"PTPeak"} [SENSe:]CURRent[:DC]:SECondary? [SENSe:]CURRent[:DC]:ZERO:AUTO {OFF|ON|ONCE} [SENSe:]CURRent[:DC]:ZERO:AUTO? [SENSe:]CURRent:SWITch:MODE {FAST|CONTinuous} [SENSe:]CURRent:SWITch:MODE? Keysight True volt Series Operating and Service Guide...
  • Page 437 [SENSe:]TEMPerature:NPLC {<PLCs>|MIN|MAX|DEF} [SENSe:]TEMPerature:NPLC? [{MIN|MAX|DEF}] [SENSe:]TEMPerature:NULL[:STATe] {OFF|ON} [SENSe:]TEMPerature:NULL[:STATe]? [SENSe:]TEMPerature:NULL:VALue {<value>|MIN|MAX|DEF} [SENSe:]TEMPerature:NULL:VALue? [{MIN|MAX|DEF}] [SENSe:]TEMPerature:NULL:VALue:AUTO {OFF|ON} [SENSe:]TEMPerature:NULL:VALue:AUTO? [SENSe:]TEMPerature:SECondary {"OFF"|"CALCulate:DATA"|"SENSe:DATA"} [SENSe:]TEMPerature:SECondary? [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:OCOMpensated {OFF|ON} [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:OCOMpensated? [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:POWer:LIMit[:STATe] {OFF|ON} [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:POWer:LIMit[:STATe]? [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:RESistance[:REFerence] {<reference>|MIN|MAX|DEF} [SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:RESistance[:REFerence]? [{MIN|MAX|DEF}] [SENSe:]TEMPerature:TRANsducer:{FTHermistor|THERmistor}:POWer:LIMit[:STATe] {OFF|ON} [SENSe:]TEMPerature:TRANsducer:{FTHermistor|THERmistor}:POWer:LIMit[:STATe]? [SENSe:]TEMPerature:TRANsducer:TCouple:CHECk {OFF|ON} [SENSe:]TEMPerature:TRANsducer:TCouple:CHECk? Keysight True volt Series Operating and Service Guide...
  • Page 438 [SENSe:]{FREQuency|PERiod}:NULL:VALue {<value>|MIN|MAX|DEF} [SENSe:]{FREQuency|PERiod}:NULL:VALue? [{MIN|MAX|DEF}] [SENSe:]{FREQuency|PERiod}:NULL:VALue:AUTO {OFF|ON} [SENSe:]{FREQuency|PERiod}:NULL:VALue:AUTO? [SENSe:]{FREQuency|PERiod}:RANGe:LOWer {<freq>|MIN|MAX|DEF} [SENSe:]{FREQuency|PERiod}:RANGe:LOWer? [SENSe:]{FREQuency|PERiod}:TIMeout:AUTO {OFF|ON} [SENSe:]{FREQuency|PERiod}:VOLTage:RANGe {<range>|MIN|MAX|DEF} [SENSe:]{FREQuency|PERiod}:VOLTage:RANGe? [{MIN|MAX|DEF}] [SENSe:]{FREQuency|PERiod}:VOLTage:RANGe:AUTO {OFF|ON|ONCE} [SENSe:]{FREQuency|PERiod}:VOLTage:RANGe:AUTO? [SENSe:]FREQuency:SECondary {"OFF"|"CALCulate:DATA"|"PERiod"|"VOLTage:AC"} [SENSe:]FREQuency:SECondary? [SENSe:]PERiod:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"VOLTage:AC"} [SENSe:]PERiod:SECondary? Continuity and Diode Configuration Commands CONFigure:CONTinuity CONFigure:DIODe Keysight True volt Series Operating and Service Guide...
  • Page 439 [SENSe:]CAPacitance:SECondary? [SENSe:]CURRent:AC:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"CURRent[:DC]"} [SENSe:]CURRent:AC:SECondary? [SENSe:]CURRent[:DC]:SECondary {"OFF"|"CALCulate:DATA"|"CURRent:AC"|"PTPeak"} [SENSe:]CURRent[:DC]:SECondary? [SENSe:]DATA2? [SENSe:]DATA2:CLEar[:IMMediate] [SENSe:]{FRESistance|RESistance}:SECondary {"OFF"|"CALCulate:DATA"} [SENSe:]{FRESistance|RESistance}:SECondary? [SENSe:]FREQuency:SECondary {"OFF"|"CALCulate:DATA"|"PERiod"|"VOLTage:AC"} [SENSe:]PERiod:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"VOLTage:AC"} [SENSe:]TEMPerature:SECondary {"OFF"|"CALCulate:DATA"|"SENSe:DATA"} [SENSe:]TEMPerature:SECondary? [SENSe:]VOLTage:AC:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"VOLTage[:DC]"} [SENSe:]VOLTage:AC:SECondary? [SENSe:]VOLTage[:DC]:RATio:SECondary {"OFF"|"CALCulate:DATA"|"SENSe:DATA"} [SENSe:]VOLTage[:DC]:RATio:SECondary? [SENSe:]VOLTage[:DC]:SECondary {"OFF"|"CALCulate:DATA"|"VOLTage:AC"|"PTPeak"} [SENSe:]VOLTage[:DC]:SECondary? Miscellaneous Configuration Commands ROUTe:TERMinals? Keysight True volt Series Operating and Service Guide...

  • Page 440: Sample Commands

    OUTPut:TRIGger:SLOPe? READ? SAMPle:COUNt {<count>|MIN|MAX|DEF} SAMPle:COUNt? [{MIN|MAX|DEF}] SAMPle:COUNt:PRETrigger {<count>|MIN|MAX|DEF} SAMPle:COUNt:PRETrigger? [{MIN|MAX|DEF}] *TRG TRIGger:COUNt {<count>|MIN|MAX|DEF|INFinity} TRIGger:COUNt? [{MIN|MAX|DEF}] TRIGger:DELay {<seconds>|MIN|MAX|DEF} TRIGger:DELay? [{MIN|MAX|DEF}] TRIGger:DELay:AUTO {OFF|ON} TRIGger:DELay:AUTO? TRIGger:LEVel {<level>|MIN|MAX|DEF} TRIGger:LEVel? [{MIN|MAX|DEF}] TRIGger:SLOPe {POSitive|NEGative} TRIGger:SLOPe? TRIGger:SOURce {IMMediate|EXTernal|BUS|INTernal} TRIGger:SOURce? Keysight True volt Series Operating and Service Guide...

  • Page 441: Calculation (Math) Commands

    Calculation (Math) Commands Overall CALCulate:CLEar[:IMMediate] Histogram CALCulate:TRANsform:HISTogram:ALL? CALCulate:TRANsform:HISTogram:CLEar[:IMMediate] CALCulate:TRANsform:HISTogram:COUNt? CALCulate:TRANsform:HISTogram:DATA? CALCulate:TRANsform:HISTogram:POINts {<value>|MIN|MAX|DEF} CALCulate:TRANsform:HISTogram:POINts? [{MIN|MAX|DEF}] CALCulate:TRANsform:HISTogram:RANGe:AUTO {OFF|ON} CALCulate:TRANsform:HISTogram:RANGe:AUTO? CALCulate:TRANsform:HISTogram:RANGe:{LOWer|UPPer} {<value>|MIN|MAX|DEF} CALCulate:TRANsform:HISTogram:RANGe:{LOWer|UPPer}? [{MIN|MAX|DEF}] CALCulate:TRANsform:HISTogram[:STATe] {OFF|ON} CALCulate:TRANsform:HISTogram[:STATe]? Limit Testing CALCulate:LIMit:CLEar[:IMMediate] CALCulate:LIMit:{LOWer|UPPer}[:DATA] {<value>|MIN|MAX|DEF} CALCulate:LIMit:{LOWer|UPPer}[:DATA]? [{MIN|MAX|DEF}] CALCulate:LIMit[:STATe] {OFF|ON} CALCulate:LIMit[:STATe]? Keysight True volt Series Operating and Service Guide...
  • Page 442 CALCulate:SCALe:DB:REFerence? [{MIN|MAX|DEF}] CALCulate:SCALe:DBM:REFerence {<reference>|MIN|MAX|DEF} CALCulate:SCALe:DBM:REFerence? [{MIN|MAX|DEF}] CALCulate:SCALe:FUNCtion {DB|DBM|PCT|SCALe} CALCulate:SCALe:FUNCtion? CALCulate:SCALe:GAIN {<gain>|MIN|MAX|DEF} CALCulate:SCALe:GAIN? [{MIN|MAX|DEF}] CALCulate:SCALe:OFFSet {<offset>|MIN|MAX|DEF} CALCulate:SCALe:OFFSet? [{MIN|MAX|DEF}] CALCulate:SCALe:REFerence:AUTO {OFF|ON} CALCulate:SCALe:REFerence:AUTO? CALCulate:SCALe:REFerence {<reference>|MIN|MAX|DEF} CALCulate:SCALe:REFerence? [{MIN|MAX|DEF}] CALCulate:SCALe[:STATe] {OFF|ON} CALCulate:SCALe[:STATe]? CALCulate:SCALe:UNIT <quoted_string> CALCulate:SCALe:UNIT? CALCulate:SCALe:UNIT:STATe {OFF|ON} CALCulate:SCALe:UNIT:STATe? Keysight True volt Series Operating and Service Guide...

  • Page 443: Reading Memory Commands

    CALCulate:AVERage:MINimum? CALCulate:AVERage:PTPeak? CALCulate:AVERage:SDEViation? CALCulate:AVERage[:STATe] {OFF|ON} CALCulate:AVERage[:STATe]? Smoothing CALCulate:SMOothing:RESPonse {SLOW|MEDium|FAST} CALCulate:SMOothing:RESPonse? CALCulate:SMOothing[:STATe] {OFF|ON} CALCulate:SMOothing[:STATe]? Trend Chart CALCulate:TCHart[:STATe] {OFF|ON} CALCulate:TCHart[:STATe]? Reading Memory Commands DATA:LAST? DATA:POINts:EVENt:THReshold <count> DATA:POINts:EVENt:THReshold? DATA:POINts? DATA:REMove? <num_readings> [,WAIT] FETCh? R? [<max_readings>] Keysight True volt Series Operating and Service Guide...

  • Page 444: Calibration Commands

    CALibration:VALue <value> CALibration:VALue? SYSTem:ACALibration:DATE? SYSTem:ACALibration:TEMPerature? SYSTem:ACALibration:TIME? State Storage and Preferences Commands *LRN? MMEMory:LOAD:PREFerences <file> MMEMory:LOAD:STATe <file> MMEMory:STORe:PREFerences <file> MMEMory:STORe:STATe <file> MMEMory:STATe:RECall:AUTO {OFF|ON} MMEMory:STATe:RECall:AUTO? MMEMory:STATe:RECall:SELect <file> MMEMory:STATe:RECall:SELect? MMEMory:STATe:VALid? <file> *RCL {0|1|2|3|4} *SAV {0|1|2|3|4} Keysight True volt Series Operating and Service Guide...

  • Page 445: General Purpose File Management Commands

    SCPI Programming Reference General Purpose File Management Commands MMEMory:CATalog[:ALL]? [<folder>[<filespec>]] MMEMory:CDIRectory <folder> MMEMory:CDIRectory? MMEMory:COPY <file1>, <file2> MMEMory:DELete {<file>|<filespec>} MMEMory:MDIRectory <folder> MMEMory:MOVE <file1>, <file2> MMEMory:RDIRectory <folder> Keysight True volt Series Operating and Service Guide...

  • Page 446: Data Transfer Commands

    MMEMory:STORe:DATA RDG_STORE, <file> MMEMory:UPLoad? <file> IEEE-488 Commands *CAL? *CLS *ESE <enable_value> *ESE? *ESR? *IDN? *LRN? *OPC *OPC? *OPT? *PSC {0|1} *PSC? *RCL {0|1|2|3|4} *RST *SAV {0|1|2|3|4} *SRE <enable_value> *SRE? *STB? *TRG *TST? *WAI Keysight True volt Series Operating and Service Guide...

  • Page 447: Format Subsystem

    HCOPy:SDUMp:DATA:FORMat? HCOPy:SDUMp:DATA? *IDN? LXI:IDENtify[:STATe] {OFF|ON} LXI:IDENtify[:STATe]? LXI:MDNS:ENABle {OFF|ON} LXI:MDNS:ENABle? LXI:MDNS:HNAMe[:RESolved]? LXI:MDNS:SNAMe:DESired "<name>" LXI:MDNS:SNAMe:DESired? LXI:MDNS:SNAMe[:RESolved]? LXI:RESet LXI:RESTart *RST SYSTem:ACALibration:DATE? SYSTem:ACALibration:TEMPerature? SYSTem:ACALibration:TIME? SYSTem:BEEPer[:IMMediate] SYSTem:BEEPer:STATe {OFF|ON} SYSTem:BEEPer:STATe? SYSTem:CLICk:STATe {OFF|ON} SYSTem:CLICk:STATe? SYSTem:DATE <year>, <month>, <day> SYSTem:DATE? Keysight True volt Series Operating and Service Guide...

  • Page 448: Interface Locking Commands

    SYSTem:TIME <hour>, <minute>, <second> SYSTem:TIME? SYSTem:UPTime? SYSTem:USB:HOST:ENABle {OFF|ON} SYSTem:USB:HOST:ENABle? SYSTem:VERSion? SYSTem:WMESsage "<string>" SYSTem:WMESsage? TEST:ALL? *TST? *Parameters vary by DMM model number. See for details. SYSTem:IDENtify Interface Locking Commands SYSTem:LOCK:NAME? SYSTem:LOCK:OWNer? SYSTem:LOCK:RELease SYSTem:LOCK:REQuest? Keysight True volt Series Operating and Service Guide...

  • Page 449: License Management Commands

    SYSTem:COMMunicate:LAN:DOMain? SYSTem:COMMunicate:LAN:GATeway "<address>" SYSTem:COMMunicate:LAN:GATeway? [{CURRent|STATic}] SYSTem:COMMunicate:LAN:HOSTname "<name>" SYSTem:COMMunicate:LAN:HOSTname? [{CURRent|STATic}] SYSTem:COMMunicate:LAN:IPADdress "<address>" SYSTem:COMMunicate:LAN:IPADdress? [{CURRent|STATic}] SYSTem:COMMunicate:LAN:MAC? SYSTem:COMMunicate:LAN:SMASk "<mask>" SYSTem:COMMunicate:LAN:SMASk? [{CURRent|STATic}] SYSTem:COMMunicate:LAN:TELNet:PROMpt "<string>" SYSTem:COMMunicate:LAN:TELNet:PROMpt? SYSTem:COMMunicate:LAN:TELNet:WMESsage "<string>" SYSTem:COMMunicate:LAN:TELNet:WMESsage? SYSTem:COMMunicate:LAN:UPDate SYSTem:COMMunicate:LAN:WINS[{1|2}] "<address>" SYSTem:COMMunicate:LAN:WINS[{1|2}]? [{CURRent|STATic}] SYSTem:USB:HOST:ENABle {OFF|ON} SYSTem:USB:HOST:ENABle? Keysight True volt Series Operating and Service Guide...

  • Page 450: Status System Commands

    SCPI Programming Reference Status System Commands *CLS *ESE <enable_value> *ESE? *ESR? *PSC {0|1} *PSC? *SRE <enable_value> *SRE? STATus:OPERation:CONDition? STATus:OPERation:ENABle <enable_value> STATus:OPERation:ENABle? STATus:OPERation[:EVENt]? STATus:PRESet STATus:QUEStionable:CONDition? STATus:QUEStionable:ENABle <enable_value> STATus:QUEStionable:ENABle? STATus:QUEStionable[:EVENt]? *STB? Keysight True volt Series Operating and Service Guide...

  • Page 451: Range, Resolution And Integration Time (Shown In Aperture And Nplcs)

    1E-1 10 k 3E-2 1E-1 3E-1 3E-3 1E-2 3E-2 1E-1 100 k 3E-1 3E-2 1E-1 3E-1 3E-1 10 M 100 M 10 k 30 k 10 k ResFactor x Range = Resolution. Keysight True volt Series Operating and Service Guide...
  • Page 452 3E-3 5E-3 1E-2 3E-2 10E-2 30E-2 100 k 1E-3 3E-3 1E-2 3E-2 5E-2 1E-1 3E-1 10E-1 30E-1 1E-2 3E-2 1E-1 3E-1 5E-1 10 M 1E-1 3E-1 100 M 10 k 30 k Keysight True volt Series Operating and Service Guide...
  • Page 453 SCPI Programming Reference ResFactor x Range = Resolution. 34465A/70A with DIG option only. Keysight True volt Series Operating and Service Guide...

  • Page 454: Resolution And Integration Time For Dc Measurements

    (DEFault) (DEFault) Range Range 100 PLC 3 ppm × Range 0.3 ppm × Range 0.03 ppm x 0.01 ppm x 1.67 s (MAXimum) (MINimum) (MINimum) Range Range 34465A/70A with DIG option only. Keysight True volt Series Operating and Service Guide...

  • Page 455: Automatic Trigger Delays

    20 µs 40 µs 100 µs 0.3 ms 1 ms 3 ms Aperture (50 Hz Power) 20 ms 0.2 s Range Delay 1 ms 1.5 ms 34465A/70A with DIG option only. 34465A/70A only. Keysight True volt Series Operating and Service Guide...

  • Page 456: Resistance (2-Wire) Default Delays

    10 ms 15 ms 10 MΩ 100 MΩ 100 ms 1 GΩ 34465A/70A with DIG option only. 34465A/70A only. AC Voltage Default Delays Filter (Hz) Range 2.5 s 0.625 s 0.025 s Keysight True volt Series Operating and Service Guide...

  • Page 457: Ac Current Default Delays

    AC Current Default Delays Filter (Hz) Range 1.66 s 0.25 s 0.025 s Frequency and Period The default delay for frequency and period is 1 s, regardless of aperture (gate time) setting. Keysight True volt Series Operating and Service Guide...

  • Page 458: Vm Comp Output (Bnc)

    The rear-panel VM Comp (voltmeter complete) output provides a 3.3 V pulse after each measurement completion to implement a standard hardware handshake sequence between measurement and switching devices. The signal shown is for a negative pulse. Keysight True volt Series Operating and Service Guide...

  • Page 459: Scpi Error Messages

    (Clear Status) command and when power is cycled. All errors are cleared when you read the error queue. The error queue is not cleared by a Fact- ory Reset (*RST) or an Instrument Preset (SYSTem:PRESet). Keysight True volt Series Operating and Service Guide...
  • Page 460 "arrow" keys to view the error messages. Press Back to exit and clear the error queue. SCPI: SYSTem:ERRor? Read and clear one error from the queue Errors have the following format (the error string may contain up to 80 characters): -113,"Undefined header" Keysight True volt Series Operating and Service Guide...

  • Page 461: Command Errors (-100...)

    -131,"Invalid suffix" -134,"Suffix too long" -138,"Suffix not allowed" -140,"Character data error" -141,"Invalid character data" -144,"Character data too long" -148,"Character data not allowed" -150,"String data error" -151,"Invalid string data" -158,"String data not allowed" Keysight True volt Series Operating and Service Guide...
  • Page 462 SCPI Programming Reference -160,"Block data error" -161,"Invalid block data" -168,"Block data not allowed" Keysight True volt Series Operating and Service Guide...

  • Page 463: Execution Errors (-200...)

    -221,"Settings conflict; limit test not allowed in current measurement function; CALC:LIM:STAT OFF set" -221,"Settings conflict; lower limit > upper limit; CALC:LIM:UPP set to CALC:LIM:LOW value" -221,"Settings conflict; offset compensation not allowed with low power ohms; low power disabled" Keysight True volt Series Operating and Service Guide...
  • Page 464 -240,"Hardware error; cannot communicate with measurement hardware" -240,"Hardware error; CPU board initialization failed" -240,"Hardware error; GPIB interface failed" -240,"Hardware error; measurement FPGA FIFO overflow" -240,"Hardware error; measurement hardware initialization failed" -241,"Hardware missing" -250,"Mass storage error: file read/write error" Keysight True volt Series Operating and Service Guide...
  • Page 465 -257,"File name error; path is a folder name" -257,"File name error; path name missing" -257,"File name error; path too long" -257,"File name error; relative path not allowed" -257,"File name error; unknown file extension" -292,"Referenced name does not exist" Keysight True volt Series Operating and Service Guide...

  • Page 466: Device-Specific Errors (-300...)

    -315,"Configuration memory lost; memory corruption detected" -350,"Queue overflow" Query Errors (-400…) -400,"Query error" -410,"Query INTERRUPTED" -420,"Query UNTERMINATED" -430,"Query DEADLOCKED" -440,"Query UNTERMINATED after indefinite response" Network Errors (+100...) +100,"Network Error" +110,"LXI mDNS Error" Keysight True volt Series Operating and Service Guide...

  • Page 467: Instrument Errors (+200...)

    +514,"Not allowed; Instrument locked by another I/O session" +532,"Not able to achieve requested resolution" +540,"Cannot use overload as math reference" +541,"Cannot use zero as math reference for PCT scaling function" +542,"Measured dB reference too small" Keysight True volt Series Operating and Service Guide...

  • Page 468: Licensing And Self-Test Errors (+600...)

    +629,"Self-test failed; Fine ADC off-scale high" +630,"Self-test failed; Fine ADC range" +631,"Self-test failed; Fine ADC bits stuck" +632,"Self-test failed; Fine ADC slope" +633,"Self-test failed; Fine ADC linearity" +634,"Self-test failed; low DC zero" Keysight True volt Series Operating and Service Guide...
  • Page 469 +662,"Self-test failed; autocal 100 KOhm to 1 MOhm transfer" +663,"Self-test failed; autocal 1 MOhm to 10 MOhm transfer" +664,"Self-test failed; autocal 10 MOhm internal resistor" +665,"Self-test aborted; high ac voltage present on input terminals" Keysight True volt Series Operating and Service Guide...

  • Page 470: Calibration Errors (+700...)

    +713,"Calibration error; ADC calibration failed; fine merge for setup 'ACV'" +713,"Calibration error; ADC calibration failed; fine merge for setup 'DCV'" +713,"Calibration error; ADC calibration failed; fine offset for setup 'ACI'" +713,"Calibration error; ADC calibration failed; fine offset for setup 'ACV'" Keysight True volt Series Operating and Service Guide...
  • Page 471 +733,"Calibration error; AC low frequency correction out of range" +734,"Calibration error; AC flatness calibration restarted by function/range change" +735,"Calibration error; 1 kHz AC flatness frequency point must be last frequency point in sequence" +736,"Calibration error; DCI 100uA range self-cal failed" Keysight True volt Series Operating and Service Guide...

  • Page 472: Miscellaneous Errors (+800...)

    +810,"State has not been stored" +820,"Model and serial numbers not restored" +821,"Controller and measurement board model numbers do not match" +822,"Controller and measurement board serial numbers do not match" +823,"Incorrect firmware loaded for this model number" Keysight True volt Series Operating and Service Guide...

  • Page 473: Power-On And Reset State

    Low Power Measurements(2- and 4- wire RTD or thermistor) Off Thermocouple (34465A/70A only): Check Reference Junction Temperature, Type, Adjust 0° C, Internal, 0° C Thermocouple Type * For all DC measurement functions. Keysight True volt Series Operating and Service Guide...
  • Page 474 System-Related Operations Factory Setting • Beeper Mode • On • Thousands Separator • On Display State Reading Memory Cleared Error Queue See note • Stored States • No Change • Calibration State • Secured Keysight True volt Series Operating and Service Guide...
  • Page 475 2 LAN setting changes require a LAN restart. From SCPI you must cycle power. 3 Where nnnnn represents the last 5 digits of the instrument serial number. The instrument uses LAN port 5024 for SCPI Telnet sessions and port 5025 for SCPI Socket sessions. Keysight True volt Series Operating and Service Guide...

  • Page 476: Service And Repair

    Installing the Optional GPIB Interface Types of Service Available If your instrument fails during the warranty period, Keysight Technologies will repair or replace it under the terms of your warranty. After your warranty expires, Keysight offers repair services at competitive prices.

  • Page 477: Repackaging For Shipment

    Do not use detergent or solvents. Do not attempt to clean internally. If needed, contact a Keysight Technologies Sales and Service office to arrange for proper cleaning to ensure that safety features and performance are maintained. Electrostatic Discharge (ESD) Precautions Almost all electrical components can be damaged by electrostatic discharge (ESD) during handling.

  • Page 478: Power Supplies

    The following measurements use the frame of the instrument as the low voltage reference. For the fol- lowing measurements, the instrument should be turned on, and the light below the power switch should be green. Location Detail C1103 pin 1 15 V ± Keysight True volt Series Operating and Service Guide...
  • Page 479 3.3 V ± 5% Low reference: large metal shield R1020 (either side of component): 10 V ± 20% Low reference: large metal shield E1006 (either side of component): 3.3 V ± 5% Keysight True volt Series Operating and Service Guide...
  • Page 480 1.2 V ± 5% Low reference: large metal shield U1004 pin 3: 5 V ± 5% Low reference: large metal shield U301: pin 2: +16.8 V ± 5% pin 3: -16.4 V ± 5% Keysight True volt Series Operating and Service Guide...

  • Page 481: Troubleshooting

    Keysight True volt Series Operating and Service Guide...

  • Page 482: Troubleshooting Procedure

    The voltage between the red and orange wires (below)should measure 7.5 to 11 VAC. The voltage between the brown and white wires (below) should measure 11 to 15 VAC. 5. If the voltages are correct, replace the main board; otherwise replace the transformer. Keysight True volt Series Operating and Service Guide...
  • Page 483 7. If the self test generates an error, record the error code and message and contact Keysight support if necessary.
  • Page 484 Service and Repair 10. Also verify that the voltage is 3.3 V ± 5% at resistor R121, referenced to the instrument chassis. If this voltage is incorrect, replace the front panel board. Keysight True volt Series Operating and Service Guide...

  • Page 485: Self-Test Procedures

    Front Panel Execution 1. Press [Shift] > [Utility] > Test/Admin > Self Test . 2. View any failures by pressing [Shift] > [Help] > View remote command error queue . Keysight True volt Series Operating and Service Guide...

  • Page 486: User Replaceable Parts

    Front Panel Shield 5041-5225 Front/Rear Push Rod (34461A, 34465A, 34470A) 5041-5232 Fan (34461A, 34465A, 34470A) 5041-5261 Fan Shield (34465A, 34470A) 5041-5257 Cable Assembly, Thermistor (34465A, 34470A) 1420-0356 Battery (in front panel) 34470-66303 Reference Assembly Keysight True volt Series Operating and Service Guide...

  • Page 487: Disassembly

    Do not turn the screw that fastens the shield in place, as this will affect the instrument's calibration. Tools Required The following tools are required. T20 Torx driver (most disassembly) Small, flat-blade screw driver (for prying) Keysight True volt Series Operating and Service Guide...

  • Page 488: General Disassembly Procedure

    At this point, the instrument it sufficiently disassembled for power supply troubleshoot- ing purposes. You could also change the battery or override calibration security at this point. If you need to disassemble the front panel, continue with the steps shown below. Keysight True volt Series Operating and Service Guide...
  • Page 489 9. Slide the white plastic backing plate to the right and lift up on the left side of the backing plate to remove it. 10. Remove the front panel PCBA by holding the connector housing shown below and lifting it out. Keysight True volt Series Operating and Service Guide...
  • Page 490 Service and Repair 11. Remove the ESD shield by prying it out gently from the plastic housing to which it attaches. This concludes the disassembly procedure. To re-assemble the instrument, reverse the procedure. Keysight True volt Series Operating and Service Guide...

  • Page 491: Battery Replacement

    Always disconnect all inputs, cords, and cables before disassembling the instrument. Tools Required T20 Torx driver (most disassembly) Small, flat-blade screw driver (for prying) Keysight True volt Series Operating and Service Guide...

  • Page 492: Procedure

    6. Position the new battery in the battery holder, + side up. Push down gently to seat the battery in the holder. 7. Re-assemble the instrument completely before connecting any cables or cords. This concludes the battery replacement procedure. Keysight True volt Series Operating and Service Guide...

  • Page 493: A And 10 A Current Path Fuse Replacement

    Always disconnect all inputs, cords, and cables before disassembling the instrument. Do not turn the screw that fastens the shield in place, as this will affect the instrument's calibration. Tools Required T20 Torx driver (most disassembly) Small, flat-blade screw driver (for prying) Keysight True volt Series Operating and Service Guide...

  • Page 494: Testing The Fuses

    DMM in continuity measurement mode, and short the HI Input terminal to the 10 A current ter- minal. If the measurement displays OPEN, replace the internal 10 A current path fuse as described below. Keysight True volt Series Operating and Service Guide...

  • Page 495: Internal Fuse Replacement Procedure

    6. Position the new fuse in the fuse holder. Push down gently to seat the fuse in the holder. 7. Re-assemble the instrument completely before connecting any cables or cords. This concludes the fuse replacement procedure. Keysight True volt Series Operating and Service Guide...

  • Page 496: Installing The Optional Gpib Interface

    GPIB module or the cover plate securely cov- ering the rear-panel opening. Locate the connector, just inside the unit, for the cable attached to the GPIB module Keysight True volt Series Operating and Service Guide...
  • Page 497 Put the module into the unit and slide the GPIB board to the right so that it is flush against the instru- ment's sheet metal. Use the screw that was removed above to secure the GPIB plate in place. This concludes the GPIB installation procedure. Keysight True volt Series Operating and Service Guide...

  • Page 498: Security Code Override

    If the firmware revision ends with 02 or greater, use Procedure A. If the firm- ware revision ends with 01, use Procedure If you encounter problems, contact Keysight Technologies for technical support. In the United States: (800) 829-4444 In Europe: 31 20 547 2111 In Japan: 0120-421-345 www.keysight.com/find/assist to contact Keysight worldwide, or contact your Keysight Technologies rep- resentative.

  • Page 499: Procedure A: For Firmware Revision Ending In 02, Or Greater

    Press [Shift] > [Utility] > Test / Admin > Security > New Code . b. Enter AT3446XA as the new passcode. c. Press Done . d. Verify the new code and press Yes to confirm the change. Keysight True volt Series Operating and Service Guide...
  • Page 500 Service and Repair 5. Remove power, disassemble the instrument, and remove the short. Then reassemble the instrument to complete the security code (calibration password) reset procedure. Keysight True volt Series Operating and Service Guide...

  • Page 501: Procedure B: For Firmware Revision Ending In 01

    3. Reassemble the instrument, apply power and turn it on; the instrument will generate an error and beep (this is normal). Wait 30 to 40 seconds for the instrument to power up completely. Keysight True volt Series Operating and Service Guide...

  • Page 502: Performance Verification

    Zero Offset Verification DC Volts and DC Current Gain Verification Frequency Accuracy Verification AC Voltage and AC Current Verification High Current Verification Capacitance Verification (Optional Verification Test) Keysight True volt Series Operating and Service Guide...

  • Page 503: Quick Performance Check

    If the instrument fails the quick performance check, calibration or repair is required. The Quick Performance Check can be limited by the factors described in the following section ( Per- formance Verification Tests ). Keysight True volt Series Operating and Service Guide...

  • Page 504: Performance Verification Tests

    An alternate method is to use the Keysight 3458A 8½-digit Digital Multimeter to measure less accurate, yet stable, sources. The output value measured from the source can be entered into the instrument as the target calibration value.

  • Page 505: Zero Offset Verification

    ± 100 mΩ Short 4-wire Ohms 100 kΩ ± 500 mΩ ± 1 Ω 1 MΩ ± 10 Ω 10 MΩ ± 100 Ω [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 506 ± 100 mΩ Short 4-wire Ohms 100 kΩ ± 500 mΩ ± 1 Ω 1 MΩ ± 10 Ω 10 MΩ ± 100 Ω [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 507 10 MΩ ± 100 Ω Short 2-wire Ohms 100 MΩ 1 kΩ [1] Select 10 PLC. [2] These values are typical and these ranges are calibrated internally. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 508 10 MΩ ± 100 Ω Short 2-wire Ohms 100 MΩ 1 kΩ [1] Select 10 PLC. [2] These values are typical and these ranges are calibrated internally. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...

  • Page 509: Dc Volts And Dc Current Gain Verification

    ± 0.56 µA ± 0.66 µA 100 µA 100 µA ± 0.03 µA ± 0.065 µA ± 0.075 µA ± 0.085 µA [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 510 ± 55 mV ± 70 mV 1000 V -500 V ± 16 mV ± 27.5 mV ± 32.5 mV ± 40 mV [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 511 ± 7 µA ± 8 µA 1 mA 1 mA ± 0.1 µA ± 0.35 µA ± 0.55 µA ± 0.65 µA [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 512 10 MΩ 10 MΩ 2-wire Ohms 100 MΩ 100 MΩ ± 101 kΩ ± 201 kΩ ± 301 kΩ ± 401 kΩ [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 513 10 MΩ 10 MΩ 2-wire Ohms 100 MΩ 100 MΩ ± 101 kΩ ± 201 kΩ ± 301 kΩ ± 401 kΩ [1] Select 10 PLC. : Quick performance verification test point. Keysight True volt Series Operating and Service Guide...

  • Page 514: Frequency Accuracy Verification

    2. Select the Frequency function, default range, 3 Hz filter, and 1 second aperture. 3. Connect the Keysight 33500B Series Function/Arbitrary Waveform Generator to the input terminals. For the 34461A/65A/70A, use the front panel input terminals and select the front input terminals with the Front/Rear switch.

  • Page 515: Ac Voltage And Ac Current Verification

    210 V 50 kHz 750 V 200 Hz ± 573 mV ± 669 mV ± 690 mV ± 711 mV 70 V 300 kHz ± 6.6 V Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 516 210 V 50 kHz 750 V 200 Hz ± 510 mV ± 606 mV ± 627 mV ± 648 mV 70 V 300 kHz ± 6.6 V Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 517 14 µA 5 kHz 1 kHz 1 mA 1 mA 200 Hz 1.4 µA 5 kHz 1 kHz 100 µA 100 µA 200 Hz 0.14 µA 5 kHz Quick performance verification test point. Keysight True volt Series Operating and Service Guide...
  • Page 518 1 mA 1 kHz ± 4.7 µA ± 4.9 µA ± 5 µA 10 mA 200 Hz 1 kHz 10 mA ± 11 µA ± 13 µA ± 14 µA 5 kHz Keysight True volt Series Operating and Service Guide...
  • Page 519 ± 1.3 µA ± 1.4 µA 5 kHz 1 kHz 100 µA 100 µA 200 Hz ± 0.110 µA ± 0.130 µA ± 0.140 µA 5 kHz Quick performance verification test point. Keysight True volt Series Operating and Service Guide...

  • Page 520: High Current Verification

    ± 24 mA (34465A/70A) 10 A 5 kHz 10 A ± 29 mA ± 29 mA (34461A) If you are NOT using the Fluke 5725 for calibration, reduce the current to 2 A. Keysight True volt Series Operating and Service Guide...

  • Page 521: Capacitance Verification (Optional Verification Test)

    5. Compare measurement results to the test limits shown in the table. (Be certain to allow time for source settling.) Input Error from Capacitance Range Nominal 1 μF 1 μF ± 0.005 μF 1 μF 10 μF ± 0.014 μF Keysight True volt Series Operating and Service Guide...

  • Page 522: Calibration Adjustment Procedures

    Calibration Adjustment Procedures Calibration Adjustment Procedures You will need a test input cable and connectors set and a low thermal input short, Keysight 34172B, to cal- ibrate the instrument (see Input Connections). Two input shorts are recommended for the 34461A/65A/70A.

  • Page 523: Calibration Procedures

    The instrument should be calibrated on a regular interval determined by the accuracy requirements of your application. A 1-year interval is adequate for most applications. Accuracy specifications are war- ranted only if calibration is made at regular calibration intervals. Keysight Technologies never recom- mends calibration adjustment intervals beyond two years.

  • Page 524: Input Connections

    SCPI programming. Input Connections Test connections to the instrument are best accomplished using a Keysight Technologies 34172B cal- ibration short for low–thermal offset measurements and a 34171B DMM connector configured to inter- face to the calibrator output. Shielded, twisted–pair, PTFE interconnect cables of minimum length are recommended between the calibrator and the multimeter to reduce settling and noise errors.

  • Page 525: Recommended Test Equipment

    An alternate method is to use the Keysight 3458A 8½-digit Digital Multimeter to measure less accurate, yet stable, sources. The output value measured from the source can be entered into the instrument as the target calibration value.

  • Page 526: Calibration Adjustment Process

    5. Secure the instrument against calibration (see Calibration Security). 6. Note the security code and calibration count in the instrument’s maintenance records. 7. Perform the performance verification tests to verify the calibration. Keysight True volt Series Operating and Service Guide...

  • Page 527: Gain Calibration Adjustment Overview

    100 mV to 10 V 0.9 to 1.1 x Full Scale AC Volts (rms) 100 V 40 V to 110 V 750 V 400 to 750 V Valid frequencies are nominal frequencies ±1%. Keysight True volt Series Operating and Service Guide...

  • Page 528: Gain And Flatness Calibration Adjustment Overview

    Most measurement functions and ranges have gain calibration procedures, and calibration for each func- tion should be performed in the order shown. Keysight True volt Series Operating and Service Guide...

  • Page 529: Entering Calibration Values And Storing Calibration Constants

    To store calibration values in non-volatile memory, use CALibration:STORe. Front Panel: [Utility] > Test/Admin > Calibrate > Save Cal Values You must have performed a successful calibration immediately before pressing Save Cal Values . Keysight True volt Series Operating and Service Guide...

  • Page 530: Calibration Security

    Security code rules: Unquoted string up to 12 characters Must start with letter (A-Z) May contain letters, numbers (0-9) and underscores Front Panel: [Utility] > Test / Admin > Security SCPI: CALibration:SECure:STATe Keysight True volt Series Operating and Service Guide...

  • Page 531: Calibration Message

    To change the calibration message, unsecure the instrument and press Utility > Test/Admin > Calibrate > Edit Cal String or send CALibration:STRing "< string >" from the remote interface. Keysight True volt Series Operating and Service Guide...

  • Page 532: Calibration Count

    To read the calibration count, press [Utility] > Test/Admin > Calibrate on the front panel or send CALibration:COUNt? from the remote interface. You can read the calibration count regardless of whether the instrument is secured. Keysight True volt Series Operating and Service Guide...

  • Page 533: Aborting A Calibration In Progress

    705 Cal:Aborted. It may also generate errors 740 through 742. If this occurs, you should not use the instrument until a complete re–calibration has been per- formed. See the list of calibration errors for more information. Keysight True volt Series Operating and Service Guide...

  • Page 534: Security Code Override

    If the firmware revision ends with 02 or greater, use Procedure A. If the firm- ware revision ends with 01, use Procedure If you encounter problems, contact Keysight Technologies for technical support. In the United States: (800) 829-4444 In Europe: 31 20 547 2111 In Japan: 0120-421-345 www.keysight.com/find/assist to contact Keysight worldwide, or contact your Keysight Technologies rep- resentative.
  • Page 535 Press [Shift] > [Utility] > Test / Admin > Security > New Code . b. Enter AT3446XA as the new passcode. c. Press Done . d. Verify the new code and press Yes to confirm the change. Keysight True volt Series Operating and Service Guide...
  • Page 536 Calibration Adjustment Procedures 5. Remove power, disassemble the instrument, and remove the short. Then reassemble the instrument to complete the security code (calibration password) reset procedure. Keysight True volt Series Operating and Service Guide...
  • Page 537 3. Reassemble the instrument, apply power and turn it on; the instrument will generate an error and beep (this is normal). Wait 30 to 40 seconds for the instrument to power up completely. Keysight True volt Series Operating and Service Guide...
  • Page 538 Verify the new code and press Yes to confirm the change. 5. Remove power, disassemble the instrument, and remove the short. Then reassemble the instrument to complete the security code (calibration password) reset procedure. Keysight True volt Series Operating and Service Guide...

  • Page 539: A And 34461A Calibration Procedures

    Frequency Accuracy Calibration DC Voltage Gain Calibration Ohms Gain Calibration DC Current Gain Calibration AC Current 10 A Gain Calibration DC Current 10 A Gain Calibration Capacitance Offset Calibration (Optional) Finishing Calibration First Procedure  Keysight True volt Series Operating and Service Guide...

  • Page 540: Adc And Zero Calibration

    The following gain and flatness calibration procedures can be done using either the front or rear terminals (rear terminals not available on the 34460A). On the 34461A/65A/70A, make sure the Front/Rear switch matches the terminals in use. Keysight True volt Series Operating and Service Guide...
  • Page 541 Calibration Adjustment Procedures Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 542: Ac Voltage Low Frequency Gain And Flatness Calibration

    5. Store the new calibration constants (see Storing the Calibration Constants). Each voltage and frequency takes approximately 2.5 seconds to complete. Input Instrument Vrms Frequency Range 10 Hz 10 V 40 Hz 10 V Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 543: Ac Voltage Gain And Flatness Calibration

    5 kHz, 10 kHz, 20 kHz, 35 kHz, 50 kHz, 75 kHz, 100 kHz, 50 V 100 V 200 kHz, 300 kHz, 390 kHz, 400 kHz, 220 Hz, 1000 Hz 500 V 1000 Hz 750 V Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 544: Ac Current Gain And Flatness Calibration

    100 mA 10 mA 5 kHz, 7.5 kHz, 9.7 kHz, 10 kHz, 220 Hz, 1 kHz 10 mA 1 mA 1 kHz 1 mA 100 µA 1 kHz 100 µA Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 545: Ac Zero Calibration

    Calibration Step Failed, check the input value, range, func- tion, and entered calibration value and repeat the calibration step. 3. Store the new calibration constants (see Storing the Calibration Constants). This calibration takes approximately 10 seconds to complete. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 546: Frequency Accuracy Calibration

    Configuration: Frequency, 10 V range The frequency accuracy of the Fluke 5720A is insufficient to calibrate the DMM. Its frequency output needs to be calibrated against a more accurate reference. The Keysight 33500B Series Function/Arbitrary Wave- form Generator is recommended for this calibration procedure.

  • Page 547: Dc Voltage Gain Calibration

    Instrument Settings Input Function Range 10 V 10 V -10 V 10 V 0.1 V 100 mV -0.1 V DC Voltage 100 mV 100 V 100 V 500 V 1000 V Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 548: Ohms Gain Calibration

    100 Ω 1 kΩ 1 kΩ 10 kΩ 10 kΩ 4-wire Ohms 100 kΩ 100 kΩ 1 MΩ 1 MΩ 10 MΩ 10 MΩ 100 MΩ 2-wire Ohms 100 MΩ Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 549: Dc Current Gain Calibration

    Each range takes less than 4 seconds to complete. Instrument Settings Input Function Range 100 µA 100 µA 1 mA 1 mA 10 mA DC Current 10 mA 100 mA 100 mA Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 550: Ac Current 10 A Gain Calibration

    4. Store the new calibration constants (see Storing the Calibration Constants). This calibration takes approximately 2.5 seconds to complete. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 551: Dc Current 10 A Gain Calibration

    4. Store the new calibration constants (see Storing the Calibration Constants). This calibration takes less than 4 seconds to complete. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 552: Capacitance Offset Calibration (Optional)

    4. Repeat steps 1 through 3 for the instrument's rear terminals (not applicable to the 34460A). 5. Store the new calibration constants (see Storing the Calibration Constants). Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 553: Finishing Calibration

    1. Remove all shorting blocks and connections from the instrument. 2. Reset the calibration message. Secure the instrument with the calibration password. 4. Record the new calibration count. 5. Perform the performance verification tests to verify the calibration. Keysight True volt Series Operating and Service Guide...

  • Page 554: A And 34470A Calibration Procedures

    Ohms Gain Calibration DC Current Gain Calibration AC Current 10 A Gain Calibration DC Current 10 A Gain Calibration DC High Voltage Gain Calibration Capacitance Offset Calibration (Optional) Finishing Calibration First Procedure Keysight True volt Series Operating and Service Guide...

  • Page 555: Adc And Zero Calibration

    The following gain and flatness calibration procedures can be done using either the front or rear terminals (rear terminals not available on the 34460A). On the 34461A/65A/70A, make sure the Front/Rear switch matches the terminals in use. Keysight True volt Series Operating and Service Guide...
  • Page 556 Calibration Adjustment Procedures Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 557: Ac Voltage Low Frequency Gain And Flatness Calibration

    5. Store the new calibration constants (see Storing the Calibration Constants). Each voltage and frequency takes approximately 2.5 seconds to complete. Input Instrument Vrms Frequency Range 10 Hz 10 V 40 Hz 10 V Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 558: Ac Voltage Gain And Flatness Calibration

    5 kHz, 10 kHz, 20 kHz, 35 kHz, 50 kHz, 75 kHz, 100 kHz, 50 V 100 V 200 kHz, 300 kHz, 390 kHz, 400 kHz, 220 Hz, 1000 Hz 500 V 1000 Hz 750 V Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 559: Ac Current Gain And Flatness Calibration

    5 kHz, 7.5 kHz, 9.7 kHz, 10 kHz, 220 Hz, 1 kHz 1 mA 100 µA 5 kHz, 7.5 kHz, 9.7 kHz, 10 kHz, 220 Hz, 1 kHz 100 µA Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 560: Ac Zero Calibration

    Calibration Step Failed, check the input value, range, func- tion, and entered calibration value and repeat the calibration step. 3. Store the new calibration constants (see Storing the Calibration Constants). This calibration takes approximately 10 seconds to complete. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 561: Frequency Accuracy Calibration

    Configuration: Frequency, 10 V range The frequency accuracy of the Fluke 5720A is insufficient to calibrate the DMM. Its frequency output needs to be calibrated against a more accurate reference. The Keysight 33500B Series Function/Arbitrary Wave- form Generator is recommended for this calibration procedure.

  • Page 562: Dc Voltage Gain Calibration

    10 V -10 V 10 V 0.1 V 100 mV -0.1 V 100 mV The 100V and 1000V ranges are adjusted later in the DC Voltage High Voltage Gain Cal- ibration. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 563: Ohms Gain Calibration

    100 Ω 1 kΩ 1 kΩ 10 kΩ 10 kΩ 4-wire Ohms 100 kΩ 100 kΩ 1 MΩ 1 MΩ 10 MΩ 10 MΩ 100 MΩ 2-wire Ohms 100 MΩ Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 564: Dc Current Gain Calibration

    Storing the Calibration Constants). Each range takes less than 4 seconds to complete. Instrument Settings Input Function Range 1 mA 1 mA 10 mA 10 mA 100 mA DC Current 100 mA Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 565: Dc High Voltage Gain Calibration

    5. Store the new calibration constants (see Storing the Calibration Constants). Each range takes less than 4 seconds to complete. Instrument Settings Input Function Range 100 V 100 V DC Voltage 500 V 1000 V Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 566: Ac Current 10 A Gain Calibration

    4. Store the new calibration constants (see Storing the Calibration Constants). This calibration takes approximately 2.5 seconds to complete. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 567: Dc Current 10 A Gain Calibration

    4. Store the new calibration constants (see Storing the Calibration Constants). This calibration takes less than 4 seconds to complete. Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 568: Capacitance Offset Calibration (Optional)

    4. Repeat steps 1 through 3 for the instrument's rear terminals (not applicable to the 34460A). 5. Store the new calibration constants (see Storing the Calibration Constants). Next Procedure Keysight True volt Series Operating and Service Guide...

  • Page 569: Finishing Calibration

    1. Remove all shorting blocks and connections from the instrument. 2. Reset the calibration message. Secure the instrument with the calibration password. 4. Record the new calibration count. 5. Perform the performance verification tests to verify the calibration. Keysight True volt Series Operating and Service Guide...

  • Page 570: Index

    AC Zero Calibration 546 , 561 2-wire Resistance 250 , 313 , 353-355 ACALibration 393-394 2-Wire Resistance 66 ACI 64 2-wire RTD 251 acquiring readings 95 2-Wire vs. 4-Wire Measurements 172 ACV 60 Keysight True volt Series Operating and Service Guide...
  • Page 571 524 , 528-533 , 541 , 545 , 554 , 556 , AVERage 212 , 230 , 232 560 , 570 Average, moving 234-235 CALibration 237-242 , 445 calibration adjustments 530 calibration count 533 BANDwidth 320 , 373 Calibration Errors 460 Keysight True volt Series Operating and Service Guide...
  • Page 572 DATA 215 , 218 , 256-258 , 261 , 263 , 303 , Command Summary 243 , 261 , 280 , 306 Data Log and Digitize Mode Default Set- Commands by Subsystem 199 tings 48 Keysight True volt Series Operating and Service Guide...
  • Page 573 Display Number 116 DCV tutorial 57 DISPlay Subsystem Introduction 259 DEFault 196 Display Trend Chart (Continuous Default Settings 243 , 280 , 474 Mode) 124 DELay 308 , 429-430 Distributor installed options 26 Keysight True volt Series Operating and Service Guide...
  • Page 574 FRTD 251 , 288 , 365-366 Factory Reset 261 , 274 , 308-309 , 311 , 314-315 , 327 , 346 , 359 , 379 , 396 , FTHermistor 370 403 , 474 Keysight True volt Series Operating and Service Guide...
  • Page 575 RMS Accuracy 168 INSTall 425 High–Speed AC Measurements 173 Instrument Errors 460 High–Speed DC and Resistance Meas- Instrument Preset 261 , 308 , 311 , 396 , urements 174 403 , 474 Keysight True volt Series Operating and Service Guide...
  • Page 576 Making High–Speed AC LEVel 430 Measurements 173 Level Triggering 178 Making High–Speed DC and Resistance Measurements 174 Level Triggering Details 91 , 187 Manage Files 142 LFRequency 400 Master Summary 275 LICense 422-425 Keysight True volt Series Operating and Service Guide...
  • Page 577 Minimizing Power Dissipation Effects 166 Number 307 MINimum 196 , 230 pretrigger 307 MMEMory 293-295 , 298-300 , 303-305 , Numeric Parameters 197 396 , 403 Nyquist Rate 177 MMEMory Subsystem - Data Transfer Commands 301 Keysight True volt Series Operating and Service Guide...
  • Page 578 Errors 171 R? 205 PLC 327 , 346 , 359 , 379 , 382 , 452 rack 44 PNG 263 rack mount 44 POINts 219 , 256-257 range 452 POSitive 204 , 432 Keysight True volt Series Operating and Service Guide...
  • Page 579 Safety notices 13 Replaceable Parts 487 Safety symbols 13 replacing fuses 494 SAMPle 306-308 , 310 REQuest 421 Sample Rate and Interval 193 RESet 279 SAMPle Subsystem Introduction 306 Reset state 474 Keysight True volt Series Operating and Service Guide...
  • Page 580 STATe 216 , 221 , 227-228 , 232 , 235 , 346-357 , 359-368 , 370-371 , 373- 240 , 277 , 299-300 , 314-316 , 321 , 338 , 349 , 361 , 374 , 395 {FREQuency|PERiod} Subsystem 336 Keysight True volt Series Operating and Service Guide...
  • Page 581 310 Configuration 405 TRANsducer 365-366 , 370 TRANsform 218-221 Trend Chart (Continuous Mode) 124 taking readings 95 Trend Chart (Digitizing and Data Logging TELNet 414-415 Modes) 127 TEMP? 241 , 393 Keysight True volt Series Operating and Service Guide...
  • Page 582 UPPer 215 , 220 , 317 , 324 , 342 , 353 , 377 ZERO 332 , 357 , 371 , 385 UPTime 403 zero offset verification 506 USB flash drive 418 User installed options 26 Utility Menu 138 Keysight True volt Series Operating and Service Guide...
  • Page 583 Keysight Technologies, Inc. 2013 - 2018 © All rights reserved. Part Number: 34460-90901 Printed in Malaysia: 27 November 2018 Edition 6...

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