Agilent Technologies U1401A User's Manual And Service Manual
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Agilent Technologies U1401A User's Manual And Service Manual

Handheld multi-function calibrator/meter
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U1401A
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User's and Service Guide
Agilent Technologies

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Summary of Contents for Agilent Technologies U1401A

  • Page 1 U1401A Handheld Multi-Function Calibrator/Meter User’s and Service Guide Agilent Technologies...

  • Page 2: Restricted Rights Legend

    Notices Warranty Safety Notices © Agilent Technologies, Inc. 2009 - 2012 No part of this manual may be reproduced in The material contained in this docu- any form or by any means (including elec- ment is provided “as is,” and is sub-...

  • Page 3: Safety Symbols

    Safety Symbols The following symbols on the instrument and in the documentation indicate precautions which must be taken to maintain safe operation of the instrument. Direct current (DC) Off (supply) Alternating current (AC) On (supply) Both direct and alternating current Caution, risk of electric shock Caution, risk of danger (refer to this manual Three-phase alternating current...

  • Page 4: General Safety Information

    Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements. • When working above DC 60 V, AC 30 Vrms or AC 42.4 Vpeak, exercise caution WA R N I N G –...
  • Page 5 Remove power and do not use the product until safe operation can be verified by service-trained personnel. If necessary, return the product to the nearest Agilent Technologies Sales and Service Office for service and repair to ensure the safety features are maintained.

  • Page 6: Environmental Conditions

    Environmental Conditions This instrument is designed for indoor use and in an area with low condensation. The table below shows the general environmental requirements for this instrument. Environmental conditions Requirements Operating temperature Full accuracy from 0 °C to 40 °C Operating humidity Full accuracy up to 80% R.H.
  • Page 7 Regulatory Markings The C-tick mark is a registered The CE mark is a registered trademark trademark of the Spectrum of the European Community. This CE Management Agency of Australia. This signifies compliance with mark shows that the product complies the Australia EMC Framework with all the relevant European Legal regulations under the terms of the Directives.
  • Page 8 To return this unwanted instrument, contact your nearest Agilent Technologies, or visit: www.agilent.com/environment/product for more information. Agilent Technologies, through Rechargeable Battery Recycling Corporation (RBRC), offers free and convenient battery recycling options in the U.S. and Canada. Contact RBRC at 877-2-RECYCLE (877.273.2925) or online at: http://www.call2recycle.org/ for the nearest recycling location.

  • Page 9: In This Guide

    In This Guide... 1 Getting Started This chapter contains a brief description of the U1401A Handheld Multi-Function Calibrator/Meter front panel, rotary switch, keypad, display, terminals, and rear panel. 2 Calibrator Output Operations This chapters contains detailed information on how to generate signals using the U1401A.
  • Page 10 The Declaration of Conformity (DoC) for this instrument is available on the Web site. You can search the DoC by its product model or description. http://regulations.corporate.agilent.com/DoC/search.htm If you are unable to search for the respective DoC, please contact your N O T E local Agilent representative. U1401A User’s and Service Guide...

  • Page 11: Table Of Contents

    Contents Contents Getting Started Introducing the U1401A Handheld Multi-Function Calibrator/Meter Standard Purchase Items List of Accessories Product Overview Slide switch The front panel at a glance The rotary switch at a glance The keypad at a glance The display at a glance The terminals at a glance The rear panel at a glance Display selection with the Hz key...
  • Page 12 Contents Measuring DC voltage Measuring AC voltage Measuring Current DC mA measurement Percentage scale of DC mA measurement Measuring Temperature Measuring Resistance and Testing Continuity Alerts and Warning During Measurement Overload alert for voltage measurement Math Operations Dynamic recording Relative (zero) Triggering Operations Data hold (manual trigger) Refresh hold (auto trigger)
  • Page 13 Contents Setting the display backlight timer Setting the power saving mode Application Examples Source Mode for mA Output Simulation Mode for mA Output Simulating a 2-wire transmitter on a current loop Measuring a Pressure Transducer Zener Diode Test Diode Test Bipolar Junction Transistor (BJT) Test Determining transistor h Junction Field-Effect Transistor (JFET) Switch Test...
  • Page 14 Contents Closed-case electronic calibration Agilent Technologies’ calibration services Calibration interval Other recommendations for calibration Environmental conditions Warm up Recommended Test Equipment Performance Verification Tests Self-verification Input performance verification Output performance verification Adjustment Considerations Adjustment Procedures Input calibration Output calibration Specifications...
  • Page 15 Contents Constant voltage and constant current outputs Square wave output U1401A User’s and Service Guide...
  • Page 16 Contents U1401A User’s and Service Guide...
  • Page 17 Tables Tables Table 1-1. List of accessories Table 1-2. Slide switch functions Table 1-3. Rotary switch positions and their corresponding functions Table 1-4. Keypad functions Table 1-5. Instructions involving shifted functions Table 1-6. Description of display annunciators Table 1-7. Description of terminals Table 1-8.
  • Page 18 Tables Table 7-4. Output performance verification tests Table 7-5. Output voltage calibration steps Table 7-6. Output current calibration steps Table 8-1. DC mV/voltage specifications Table 8-2. DC current specifications Table 8-3. AC mV/voltage specifications Table 8-4. AC current specifications Table 8-5. AC+DC mV/voltage specifications Table 8-6.
  • Page 19 Figures Figures Figure 1-1. The slide switch Figure 1-2. The front panel Figure 1-3. The rotary switch Figure 1-4. Keypad functions Figure 1-5. Keypad shifted functions Figure 1-6. Full display Figure 1-7. Terminals Figure 1-8. The rear panel Figure 1-9. IR-USB cable Figure 1-10.
  • Page 20 Figures Figure 4-4. Setting the beeper frequency Figure 4-5. Setting the minimum frequency Figure 4-6. Setting the percentage scale readout Figure 4-7. Setting the print mode for remote control Figure 4-8. Setting the echo mode for remote control Figure 4-9. Setting the data bit for remote control Figure 4-10.
  • Page 21 The rear panel at a glance Display selection with the Hz key Display selection with the DUAL key Remote Communication This chapter contains a brief description of the U1401A Handheld Multi- Function Calibrator/Meter front panel, rotary switch, keypad, display, terminals, and rear panel. Agilent Technologies...

  • Page 22: Introducing The U1401A Handheld Multi-Function Calibrator/Meter

    Getting Started Introducing the U1401A Handheld Multi-Function Calibrator/Meter The key features of the U1401A are: • Simultaneous signal generation and measurement. • DC, AC, and AC+DC voltage and current measurements. • DC voltage, DC current, and square wave outputs. • Intelligent output and standby control. •...

  • Page 23: Standard Purchase Items

    • 19 mm probes • Alligator clips • Yellow test lead for mA simulation • Certificate of calibration • Printed Quick Start Guide If anything is missing, contact your nearest Agilent Technologies Sales and Service Office. U1401A User’s and Service Guide...

  • Page 24: List Of Accessories

    Getting Started List of Accessories Table 1-1 List of accessories Type Agilent part number Description Standard Protective holster Rechargeable battery pack (1.2V NiMH AA x 8) AC Power Adapter for Handheld Multi-Function Calibrator/Meter Power cord (according to country) Carrying case...

  • Page 25: Product Overview

    Getting Started Product Overview Slide switch The slide switch has the following positions: • Charge: Select this position to charge the batteries. Use the AC adapter provided to charge this instrument. • M: Select this position to enable only the measurement functions.
  • Page 26 Getting Started Table 1-2 Slide switch functions (continued) Description Function Slide Switch — Charging Indicates the charging process. indication GREEN: Fully charged YELLOW: Charging U1401A User’s and Service Guide...

  • Page 27: The Front Panel At A Glance

    Getting Started The front panel at a glance Display Keypad Rotary switch Terminals Figure 1-2 The front panel U1401A User’s and Service Guide...

  • Page 28: The Rotary Switch At A Glance

    Getting Started The rotary switch at a glance Before powering on the U1401A, set the slide switch to M or M/S position. To switch on the U1401A, turn the rotary switch to the desired function. The input and output functions are selected together. The outer circle indicates the output (source) function while the inner circle indicates the input (meter) function.

  • Page 29: The Keypad At A Glance

    Getting Started Table 1-3 Rotary switch positions and their corresponding functions Description/Function Input (white) Output (yellow) Diode and continuity tests Constant current: ±25 mA DC, AC, or AC+DC mA • Constant voltage: ±1.5 V, ±15 V measurements: 50 mA or 500 mA •...

  • Page 30: Table 1-4 Keypad Functions

    Getting Started Figure 1-5 Keypad shifted functions Table 1-4 Keypad functions Function when pressed for less than one Function when pressed for more than one second second AC/DC Selects DC, AC, or AC+DC Toggles between peak hold ON or OFF for V and mA measurement If the data hold mode is enabled: HOLD...
  • Page 31 Getting Started Table 1-4 Keypad functions (continued) Function when pressed for less than one Function when pressed for more than one second second SHIFT Enables and disables the shifted functions of Toggles backlight ON/OFF the other keys MODE Selects output modes for constant Enters the adjustment mode (for autoscan and voltage/constant current, autoscan and autoramp outputs).

  • Page 32: Table 1-5 Instructions Involving Shifted Functions

    Getting Started Shifted functions Every key (except the SHIFT key itself) has a shifted function. To access these shifted functions, you must first press SHIFT. After pressing SHIFT, the shifted functions will remain enabled (the LCD display will indicate ) until the SHIFT key is pressed again.

  • Page 33: The Display At A Glance

    Getting Started The display at a glance To view the full display (with all segments illuminated), press while turning the rotary switch from OFF to any non- OFF position. After you are done viewing the full display, press any key to resume the normal function, depending on the rotary switch position.

  • Page 34: Table 1-6 Description Of Display Annunciators

    Getting Started Table 1-6 Description of display annunciators LCD display annunciator Description Remote control Scan output Ramp output Shifted functions enabled AUTO Autorange Relative mode Low battery indication Auto power-off enabled Square wave output Frequency (Hz), duty cycle (%), pulse width (ms), and level for square wave output Constant current output Constant voltage output U1401A User’s and Service Guide...
  • Page 35 Getting Started Table 1-6 Description of display annunciators (continued) LCD display annunciator Description Thermocouple type for temperature test. The U1401A supports K-type thermocouple only. Output enabled and output disabled Secondary display for output and input Output or input units for secondary display Diode or audible continuity Audible continuity for resistance Trigger (manual) hold...
  • Page 36 Getting Started Table 1-6 Description of display annunciators (continued) LCD display annunciator Description Input units for primary display Square wave output. Positive or negative trigger slope Positive slope for pulse width (ms) and duty cycle (%) measurement Negative slope for pulse width (ms) and duty cycle (%) measurement Percentage scale for 0 to 20 mA and 4 to 20 mA current measurement Without ambient temperature compensation U1401A User’s and Service Guide...

  • Page 37: The Terminals At A Glance

    Getting Started The terminals at a glance To avoid damaging this instrument, do not exceed the rated input WA R N I N G limit. Figure 1-7 Terminals Table 1-7 Description of terminals Description Function OUTPUT (Yellow) For constant voltage, constant current, and square wave output functions INPUT (Grey-white)

  • Page 38: Table 1-8 Overload Protection For The Input Terminals

    Getting Started Table 1-8 Overload protection for the input terminals Rotary switch position Input terminal Overload protection + and – AC/DC voltage range: 250 Vrms 5 V to 250 V AC/DC voltage range: 50 mV to 500 mV Ohm (Ω) Diode ( Temperature AC/DC current range:...

  • Page 39: The Rear Panel At A Glance

    Getting Started The rear panel at a glance Figure 1-8 The rear panel U1401A User’s and Service Guide...

  • Page 40: Display Selection With The Hz Key

    Getting Started Display selection with the Hz key The frequency measurement function is able to detect the presence of harmonic currents in neutral conductors and determines, whether these neutral currents are the result of unbalanced phases or non- linear loads. Press to enter the frequency measurement mode for current or voltage measurements.
  • Page 41 Getting Started Table 1-9 Measurement functions and corresponding display selection with the Hz key (continued) Measurement function Primary display Secondary display DC current Frequency (Hz) DC current Duty cycle (%) Pulse width (ms) AC+DC current Frequency (Hz) AC+DC current Duty cycle (%) Pulse width (ms) Current in percentage scale Frequency (Hz)

  • Page 42: Display Selection With The Dual Key

    Getting Started Display selection with the DUAL key Press to enable the dual display function, in which two separate parameters of the measured signal is displayed simultaneously on the primary and secondary displays. The dual display function is not available in dynamic recording or trigger mode.

  • Page 43: Remote Communication

    9600, n, 8, and 1 respectively. 2 Make sure that the USB driver and the Agilent data logger software has been installed on your computer. You will need to download the Agilent data logger software from Agilent’s N O T E website in order to use this feature.

  • Page 44: Figure 1-9 Ir-Usb Cable

    Getting Started reattach the cover, simply slip the cover over the connector. Make sure that the text on the cover is on the same side as the text on the top case of the connector. You will hear a click when the cover snaps properly into its place.

  • Page 45: Figure 1-10 Ir-Usb Cable Connection

    Getting Started Text side facing upward IR-USB cable Figure 1-10 IR-USB cable connection Disconnect Connect Press this flap while moving in the direction indicated by the arrows to connect or disconnect the IR-USB cable Figure 1-11 IR-USB cable U1401A User’s and Service Guide...
  • Page 46 Getting Started U1401A User’s and Service Guide...
  • Page 47 User’s and Service Guide Calibrator Output Operations Enabling and Disabling the Output Constant Voltage Operation Constant Current Operation Memory Generation Autoscan output Autoramp output Square Wave Output This chapters contains detailed information on how to generate signals using the U1401A. Agilent Technologies...

  • Page 48: Calibrator Output Operations

    Calibrator Output Operations Enabling and Disabling the Output The U1401A can generate and measure signals simultaneously. Pressing the OUTPUT key disables the U1401A output by placing it in the standby mode. Pressing this key again toggles the output on. When the output is in the standby mode, the annunciator disappears and the annunciator is displayed instead.

  • Page 49: Constant Voltage Operation

    Calibrator Output Operations Constant Voltage Operation The U1401A can generate a constant voltage output in two different ranges, namely ±1.5 V and ±15 V. To select the constant voltage output function: 1 Turn the rotary switch to any one of the (constant voltage output) positions.

  • Page 50: Constant Current Operation

    Calibrator Output Operations Constant Current Operation The U1401A can generate a constant current output in the range of ±25 mA. To select the constant voltage output function: 1 Turn the rotary switch to any one of the (constant current output) positions. 2 Press SHIFT to access the shifted operations of the keypad.

  • Page 51: Memory Generation

    Calibrator Output Operations Memory Generation For constant voltage and current outputs, the U1401A offers two additional useful functions. One is an autoscan output that is able to generate up to 16 different steps of constant voltage or current each with its own user- defined amplitude and time interval.
  • Page 52 Calibrator Output Operations 4 After selecting the required function, press to select one of three modes: Continuous, Cycle, or Step. The secondary display will indicate Cont, CyCLE, or StEP respectively (Figure 2- 1 on page 34). • Continuous mode (Cont): This mode will output a signal according to the amplitudes and time intervals defined in the memory, starting from step 1 until the step where the time interval is “00”...

  • Page 53: Table 2-1 Default Settings For The Autoscan Output

    Calibrator Output Operations Table 2-1 Default settings for the autoscan output Mode ±1.5000 V ±15.000 V ±25.000 mA Step Amplitude Time interval Amplitude Time interval Amplitude Time interval +1.5000 V +15.000 V +00.000 mA 02 sec 02 sec 02 sec +1.2000 V +12.000 V +04.000 mA...

  • Page 54: Figure 2-1 Selecting Autoscan Output Mode

    Calibrator Output Operations Press Press Press Figure 2-1 Selecting autoscan output mode Figure 2-2 Example of a typical autoscan output U1401A User’s and Service Guide...
  • Page 55 Calibrator Output Operations Defining the autoscan parameters in the memory Press and hold MODE for more than one second to enter the autoscan adjustment mode. A total of 16 steps with individually definable time interval and amplitude are available. When the instrument is in the autoscan adjustment mode, the secondary display shows the amplitude.

  • Page 56: Autoramp Output

    Calibrator Output Operations 2 Press OUTPUT to save the settings. Output amplitude 0 to 99 sec 16 memory time locations interval Figure 2-3 Defining the autoscan output Autoramp output To set the autoramp output: 1 Turn the rotary switch to any one of the positions.

  • Page 57: Table 2-2 Default Settings For The Autoramp Output

    Calibrator Output Operations Table 2-2 Default settings for the autoramp output Mode ±1.5000 V ±15.000 V ±25.000 mA Position Amplitude Resolution Amplitude Resolution Amplitude Resolution Start –1.5000 V 015 steps –15.000 V 015 steps –25.000 mA 025 steps +1.5000 V +15.000 V +25.000 mA 015 steps...

  • Page 58: Figure 2-4 Selecting Autoramp Output Mode

    Calibrator Output Operations Press Press Figure 2-4 Selecting autoramp output mode End position Size of each step Size of each step = (end amplitude = (start amplitude – start amplitude) – end amplitude) /resolution /resolution Start position Figure 2-5 Ramp output Defining the autoramp parameters in the memory Press and hold MODE for more than one second to enter the autoramp adjustment mode.
  • Page 59 Calibrator Output Operations used to indicate the start or end position. The last three digits of the primary display are used to indicate the number of steps (the number of steps from start to end). 1 Press MODE to cycle through position (start or end), number of steps, and amplitude adjustment.

  • Page 60: Figure 2-6 Defining The Autoramp Output

    Calibrator Output Operations Start amplitude End amplitude Press MODE Press MODE Start position 1 ~ 999 steps 1 to 99 steps End position Figure 2-6 Defining the autoramp output U1401A User’s and Service Guide...

  • Page 61: Square Wave Output

    Calibrator Output Operations Square Wave Output The square wave output can be used to generate a PWM (pulse width modulation) output or provide a synchronous clock source (baud rate generator). You can also use it to check and calibrate flow- meter displays, counters, tachometers, oscilloscopes, frequency converters, frequency transmitters, and other frequency input devices.
  • Page 62 Calibrator Output Operations The duty cycle can be stepped through 256 equal steps, with each step equivalent to 0.390625%, and you can set its value from 1 to 255 steps (0.390625% to 99.609375%). However, the display can only indicate this to the nearest 0.01%. To adjust the duty cycle: 1 Press MODE to select duty cycle adjustment.

  • Page 63: Figure 2-7 Parameter Selection For Square Wave Output

    Calibrator Output Operations Press MODE Press MODE Press MODE Press MODE Figure 2-7 Parameter selection for square wave output U1401A User’s and Service Guide...
  • Page 64 Calibrator Output Operations U1401A User’s and Service Guide...

  • Page 65: Making Measurements

    Overload alert for voltage measurement Math Operations Dynamic recording Relative (zero) Triggering Operations Data hold (manual trigger) Refresh hold (auto trigger) 1 ms peak hold This chapter contains the detailed information on how measurements are taken using the U1401A. Agilent Technologies...

  • Page 66: Measuring Voltage

    Making Measurements Measuring Voltage The U1401A performs true- rms AC measurements that are accurate for square waves without any DC offset. Make sure that the terminal connections are correct for a particular WA R N I N G measurement before making the measurement. To avoid damaging the U1401A, do not exceed the rated input limit.

  • Page 67: Figure 3-1 Dc Voltage Measurement

    Making Measurements Figure 3-1 DC voltage measurement U1401A User’s and Service Guide...

  • Page 68: Measuring Ac Voltage

    Making Measurements Measuring AC voltage 1 Turn the rotary switch to 2 Press to select AC voltage measurement. 3 Connect the red and black test leads to the positive and negative input terminals respectively (Figure 3- 4 Probe the test points and read the display. Figure 3-2 AC voltage measurement U1401A User’s and Service Guide...

  • Page 69: Measuring Current

    Making Measurements Measuring Current DC mA measurement 1 Turn the rotary switch to 2 Press to select DC current measurement. 3 Connect the red and black test leads to the positive and negative input terminals respectively. 4 Probe the test points in series with the circuit and read the display (see Figure 3- Figure 3-3 DC current (mA) measurement...

  • Page 70: Percentage Scale Of Dc Ma Measurement

    Making Measurements Percentage scale of DC mA measurement The percentage scale for 4 mA to 20 mA or 0 mA to 20 mA is calculated based on the measured DC mA value. 1 Select the required range (4 mA to 20 mA or 0 mA to 20 mA) in the Setup mode (refer to Chapter 4, “Setting...

  • Page 71: Measuring Temperature

    Making Measurements Measuring Temperature Do not bend the thermocouple leads at sharp angles. Repeated bending C A U T I O N over a period of time may break the leads. The bead type thermocouple probe is suitable for measuring temperature from –40 °C to 204 °C in PTFE compatible environments.
  • Page 72 Making Measurements To measure temperature, follow these steps: 1 Set the slide switch to the M position to disable the output. 2 Turn the rotary switch to the position. 3 Press and hold for more than 1 second to select temperature measurement.

  • Page 73: Figure 3-4 Surface Temperature Measurement

    Making Measurements Figure 3-4 Surface temperature measurement U1401A User’s and Service Guide...

  • Page 74: Measuring Resistance And Testing Continuity

    Making Measurements Measuring Resistance and Testing Continuity Disconnect circuit power and discharge all high-voltage capacitors before C A U T I O N measuring resistance to prevent possible damage to the instrument or the device under test. To measure resistance, follow these steps: 1 Turn the rotary switch to the Ω...

  • Page 75: Figure 3-5 Resistance Measurement

    Making Measurements Figure 3-5 Resistance measurement Press Figure 3-6 Enabling and disabling the continuity test U1401A User’s and Service Guide...

  • Page 76: Alerts And Warning During Measurement

    Making Measurements Alerts and Warning During Measurement Overload alert for voltage measurement For your own safety, please do not ignore the overload alert. When the WA R N I N G instrument gives you an overload alert, immediately remove the test leads from the source being measured.

  • Page 77: Math Operations

    Making Measurements Math Operations Dynamic recording The dynamic recording mode can be used to detect intermittent turn- on or turn- off voltage or current surges, and to verify measurement performance without your supervision. While the readings are being recorded, you may perform other tasks.
  • Page 78 Making Measurements • If an overload condition occurs, the averaging function will stop. The N O T E recorded average value becomes OL (overload). • In dynamic recording, the auto power off feature will be disabled. This is indicated by the absence of the annunciator on the display.

  • Page 79: Figure 3-7 Dynamic Recording Mode

    Making Measurements Press Press Press Press Press Press Press Press Figure 3-7 Dynamic recording mode U1401A User’s and Service Guide...

  • Page 80: Relative (Zero)

    Making Measurements Relative (zero) The relative function subtracts a stored value from the present measured value and displays the difference. 1 Press to store the currently displayed reading as the reference value to be subtracted from subsequent measurements. The annunciator will be displayed. 2 The relative mode can be activated in both auto and manual ranges, but it cannot be set if the present reading is overload (OL).

  • Page 81: Triggering Operations

    Making Measurements Triggering Operations Data hold (manual trigger) The data hold mode allows you to hold the displayed value. 1 Press to freeze the currently displayed value and enter the manual trigger mode. The DH annunciator will appear on the display. 2 Press the key again to trigger another new measured value and update the display.

  • Page 82: Refresh Hold (Auto Trigger)

    Making Measurements Refresh hold (auto trigger) The refresh hold mode freezes the displayed value until the reading variation exceeds the specified number of counts. This function will autotrigger and update the held value with a new measured value. When a new value is updated, the instrument will beep once as a notification.

  • Page 83: Ms Peak Hold

    Making Measurements 1 ms peak hold This function allows the measurement of peak voltage for analysis of components such as power distribution transformers and power factor correction capacitors. The peak voltage obtained can be used to determine the crest factor. Crest factor = Peak value/True- rms value To measure the half- cycle peak voltage: 1 Press...

  • Page 84: Figure 3-10 1 Ms Peak Hold Mode

    Making Measurements Press Press Press Press to change to restart range Press Figure 3-10 1 ms peak hold mode U1401A User’s and Service Guide...
  • Page 85 Setting the echo mode Setting the data bit Setting the parity check Setting the baud rate Setting the display backlight timer Setting the power saving mode This chapter describes how to change the default settings of the U1401A. Agilent Technologies...

  • Page 86: Changing The Default Settings

    Changing the Default Settings Entering the Setup Mode To enter the setup mode, perform the following steps: 1 Turn the instrument off. 2 From the OFF position, turn the rotary switch to any non- OFF position while pressing and holding Press and hold Turn on Figure 4-1 Entering the setup mode...
  • Page 87 Changing the Default Settings 3 To configure a menu item in the setup mode, perform the following steps: i Press to scroll through the available menu items. ii Press to change or select the setting. See Table 4- 1 on page 68 for details on the available options.

  • Page 88: Available Setting Options

    Changing the Default Settings Available Setting Options Table 4-1 Setup options and default settings Menu item Available setting options Default factory setting Display Description Display Description rhoLd Data Hold/ Enables data hold (manual trigger) Refresh Hold 100–1000 Sets the variation count for refresh hold (auto trigger) tEMP Temperature...

  • Page 89: Setting The Data Hold/Refresh Hold Mode

    Changing the Default Settings Table 4-1 Setup options and default settings (continued) Menu item Available setting options Default factory setting Display Description Display Description PArtY Parity En, odd, or Sets even, odd, or no parity check for remote nonE nonE communication with a PC (remote control) bAud Baud rate...

  • Page 90: Figure 4-2 Setting The Data Hold Or Refresh Hold Mode

    Changing the Default Settings Press Press Press Press Press Figure 4-2 Setting the data hold or refresh hold mode U1401A User’s and Service Guide...

  • Page 91: Setting The Temperature Unit

    Changing the Default Settings Setting the temperature unit Four combinations of temperature unit display are available: • Celsius only (°C on the primary display) • Celsius (°C) on the primary display and Fahrenheit (°F) on the secondary display (for dual display setting). •...

  • Page 92: Figure 4-3 Setting The Temperature Unit

    Changing the Default Settings Press Press SHIFT for more than one second to enable temperature unit menu item Press Press Press Press Figure 4-3 Setting the temperature unit U1401A User’s and Service Guide...

  • Page 93: Setting The Beeper Frequency

    Changing the Default Settings Setting the beeper frequency The beeper frequency can be set to 4800 Hz, 2400 Hz, 1200 Hz, or 600 Hz. “OFF” means the beeper is disabled. Press Press Press Press Press Press Figure 4-4 Setting the beeper frequency U1401A User’s and Service Guide...

  • Page 94: Setting The Minimum Measurable Frequency

    Changing the Default Settings Setting the minimum measurable frequency This setting will influence the measurement rates for frequency, duty cycle, and pulse width. The typical measurement rate as defined in the general specifications is based on a minimum frequency of 1 Hz. Press Press Press...

  • Page 95: Setting The Percentage Scale Readout

    Changing the Default Settings Setting the percentage scale readout This function converts the DC current measurement display to a percentage scale readout from 0% to 100% based on a range of 4 mA to 20 mA or 0 mA to 20 mA. For example, a 25% readout represents DC 8 mA for the 4 mA to 20 mA range, or DC 5 mA for the 0 mA to 20 mA range.

  • Page 96: Setting The Print Mode

    Changing the Default Settings Setting the print mode Setting this feature on enables the printing of measured data to a PC (connected to the instrument for remote communication) when a measurement cycle is completed. In this mode, the instrument automatically and continuously sends the latest data to the host, but does not accept any commands from the host.

  • Page 97: Setting The Echo Mode

    PC in remote communication, which is useful when developing PC programs with SCPI commands. • This mode is for internal use by Agilent Technologies only. N O T E • During normal operation, it is recommended that you disable this function.

  • Page 98: Setting The Data Bit

    Changing the Default Settings Setting the data bit The number of data bits (data width) for remote communication with a PC can be set to either 8 bits or 7 bits. There is only one stop bit, which cannot be changed. Press Press Press...

  • Page 99: Setting The Parity Check

    Changing the Default Settings Setting the parity check The parity check for remote communication with a PC can be set to either none, even, or odd. Press Press Press Press Figure 4-10 Setting the parity check for remote control U1401A User’s and Service Guide...

  • Page 100: Setting The Baud Rate

    Changing the Default Settings Setting the baud rate The baud rate used in the remote communication with a PC can be set as 2400 Hz, 4800 Hz, 9600 Hz, or 19200 Hz. Press Press Press Press Press Figure 4-11 Setting the baud rate for remote control U1401A User’s and Service Guide...

  • Page 101: Setting The Display Backlight Timer

    Changing the Default Settings Setting the display backlight timer The display backlight timer can be set from 1 to 99 seconds. The backlight turns off automatically after the set period. “OFF” means the backlight will not turn off automatically. Press Press Press Press...

  • Page 102: Setting The Power Saving Mode

    Changing the Default Settings Setting the power saving mode To enable auto power- off, set this timer to any value from 1 to 99 minutes. This feature is incorporated for power saving. The instrument will automatically turn off after the specified period of time, if none of the following happens within that period: •...

  • Page 103: Figure 4-13 Setting The Auto Power-Off Mode

    Changing the Default Settings Press Press Press Press Press Figure 4-13 Setting the auto power-off mode U1401A User’s and Service Guide...
  • Page 104 Changing the Default Settings U1401A User’s and Service Guide...

  • Page 105: Application Examples

    Determining transistor h Junction Field-Effect Transistor (JFET) Switch Test Operational Amplifier Verification Current-to-voltage converter Voltage-to-current converter Integrator: square wave to triangle wave conversion 2-Wire Transmitter Verification Frequency Transmitter Verification This chapter describes some application examples for the U1401A. Agilent Technologies...

  • Page 106: Source Mode For Ma Output

    Application Examples Source Mode for mA Output This instrument provides steady, stepped, and ramped current output for testing 0 mA to 20 mA and 4 mA to 20 mA current loops. The source mode can be used to supply current to a passive circuit such as a current loop without loop supply.

  • Page 107: Figure 5-1. Testing A 4 Ma To 20 Ma Current Loop With The Source

    Application Examples Black Figure 5-1 Testing a 4 mA to 20 mA current loop with the source mode U1401A User’s and Service Guide...

  • Page 108: Simulation Mode For Ma Output

    Application Examples Simulation Mode for mA Output Always use the supplied special yellow test lead to perform mA C A U T I O N simulation. Disconnect the test lead from the current loop before turning the rotary switch to change function or to power-off this instrument. Failure to do so will result in a current of at least 16 mA in the 250 Ω...

  • Page 109: Figure 5-2 Ma Output Simulation

    Application Examples Do not apply an external voltage exceeding 30 V across the output C A U T I O N terminals of the instrument. Yellow Black Figure 5-2 mA output simulation U1401A User’s and Service Guide...

  • Page 110: Simulating A 2-Wire Transmitter On A Current Loop

    Application Examples Simulating a 2-wire transmitter on a current loop The special yellow test lead supplied with the U1401A can also be used for simulating a 2- wire transmitter. This lead is used in place of the red lead (which is used in most other applications).

  • Page 111: Figure 5-3 Use The Yellow Test Lead To Perform The 2-Wire Transmitter Simulation

    Application Examples Input Excitation source Yellow Black Always use yellow test lead to perform mA simulation Figure 5-3 Use the yellow test lead to perform the 2-wire transmitter simulation U1401A User’s and Service Guide...

  • Page 112: Measuring A Pressure Transducer

    Application Examples Measuring a Pressure Transducer To measure a pressure transducer, follow these steps: 1 Turn the rotary switch to 2 Connect the red and black probe leads to the positive and negative input terminals respectively. 3 Probe the test points (Figure 5- 4 on page 93) and read the display.

  • Page 113: Figure 5-4 Pressure Transducer Measurement

    Application Examples White Green Lead wires 1 - Red 2 - White Out+ 3 - Black V– 4 - Green Out– Figure 5-4 Pressure transducer measurement U1401A User’s and Service Guide...

  • Page 114: Zener Diode Test

    Application Examples Zener Diode Test To avoid damaging the instrument, disconnect the circuit power and C A U T I O N discharge all high-voltage capacitors before testing the diodes. To perform zener diode test: 1 Turn the rotary switch to the position.

  • Page 115: Figure 5-5 Zener Diode Test

    Application Examples Figure 5-5 Zener diode test U1401A User’s and Service Guide...

  • Page 116: Diode Test

    Application Examples Diode Test A good diode allows current to flow in one direction only. To test a diode, turn the circuit power off, remove the diode from the circuit, and proceed as follows: 1 Turn the rotary switch to the position.

  • Page 117: Figure 5-6 Diode Test

    Application Examples Forward bias Reverse bias Black Black Figure 5-6 Diode test U1401A User’s and Service Guide...

  • Page 118: Bipolar Junction Transistor (Bjt) Test

    Application Examples Bipolar Junction Transistor (BJT) Test A BJT typically has three terminals, namely emitter (E), base (B), and collector (C). There are two types of BJT depending on polarity: PNP type and NPN type. It is recommended that you obtain the specific data sheet from the manufacturers. You can also use the U1401A to identify the polarity and terminals of a BJT by following the procedure below: 1 Turn the rotary switch to the...

  • Page 119: Table 5-2 Base Terminal According To Probe Test

    Application Examples Table 5-2 Base terminal according to probe test Probe Red/Black Black/Red Base 5 Probe the base terminal with the red test lead, and the other two pins (in turn) with the black test lead. Record the readings. 6 Repeat step 5, but reverse the red and black test leads.

  • Page 120: Table 5-4 Polarities And Terminals If Pin 2 Is The Base

    Application Examples Table 5-4 Polarities and terminals if Pin 2 is the base Pins Terminals Test leads >V Type Red/Black 0.6749 V 0.6723 V 0.6723 V 0.6749 V Black/Red 0.6749 V 0.6723 V 0.6723 V 0.6749 V Table 5-5 Polarities and terminals if Pin 1 is the base Pins Terminals Test leads...

  • Page 121: Table 5-6 Polarity And Terminals If Pin 2 Is The Base

    Application Examples Normally, the case is the collector terminal. Figure 5-8 TO-3 Transistor A silicon NPN high power transistor (2N3055) is used as an example to demonstrate how the polarity and terminals are identified. According to the previous procedure, pin 2 is the base. Table 5-6 Polarity and terminals if Pin 2 is the base Test leads Pins...

  • Page 122: Determining Transistor H Fe

    Application Examples Determining transistor h If you wish to obtain the correct results, please adjust the values of V N O T E and I according to the conditions specified by the transistor manufacturer. For NPN-type BJT 1 Turn the rotary switch to the position.

  • Page 123: Figure 5-9 Determining Transistor H Fe

    Application Examples = 152 = 300 = Current source = Meter reading Figure 5-9 Determining transistor h U1401A User’s and Service Guide...

  • Page 124: Junction Field-Effect Transistor (Jfet) Switch Test

    Application Examples Junction Field-Effect Transistor (JFET) Switch Test A JFET typically has three terminals, namely drain (D), gate (G), and source (S). There are two types of JFET depending on the channel type: p- channel and n- channel. It is recommended that you obtain the specific data sheet from the manufacturers.

  • Page 125: Table 5-7 Gate Terminal According To Probe Test

    Application Examples Table 5-7 Gate terminal according to probe test Pins Test leads Gate Red/Black Black/Red <1 kΩ <1 kΩ <1 kΩ <1 kΩ <1 kΩ <1 kΩ You can identify the channel type of a JFET by measuring its drain- source resistance (R ) when it is biased with a constant voltage source.

  • Page 126: Figure 5-11 N- Channel Jfet

    Application Examples The cutoff voltage of an n-channel JFET To determine the cutoff voltage of an n- channel JFET: 1 Connect the red input probe lead to the drain. 2 Connect the black input probe lead to the source. 3 Connect the red output alligator lead to the gate terminal through a 100 kΩ...

  • Page 127: Figure 5-12 P- Channel Jfet

    Application Examples The cutoff voltage of a p-channel JFET To determine the cutoff voltage of a p- channel JFET: 1 Connect the red input probe lead to the drain. 2 Connect the black input probe lead to the source. 3 Connect the red output alligator lead to the gate terminal through a 100 kΩ...

  • Page 128: Operational Amplifier Verification

    Application Examples Operational Amplifier Verification The ideal amplifier is assumed to have the following characteristics: • Infinite gain • Infinite input impedance • Infinite bandwidth (a bandwidth extending from zero to infinity) • Zero output impedance • Zero voltage and current offset There are two basic ways of applying feedback to a differential operational amplifier.

  • Page 129: Figure 5-13 Current-To-Voltage Converter

    Application Examples 4 Connect the red and black alligator leads to the positive and negative output terminals respectively. 5 Connect the operational amplifier as shown in Figure 5- 6 Use a DC power supply with +15 V and –15 V outputs to power the operational amplifier.

  • Page 130: Voltage-To-Current Converter

    Application Examples Voltage-to-current converter In maintaining its differential input voltage at zero, the operational amplifier shown in Figure 5- 14 forces a current I = V /R1 to flow through the R2 load in the feedback path. This current is independent of the load. 1 Turn the rotary switch to the position.

  • Page 131: Integrator: Square Wave To Triangle Wave Conversion

    Application Examples Figure 5-14 Voltage-to-current converter Integrator: square wave to triangle wave conversion The integrating circuit in Figure 5- 15 on page 112 produces an output voltage that is proportional to the integral of the input voltage. One of the many uses of this integrator is to convert a square wave into a triangle wave.

  • Page 132: Figure 5-15 Square Wave To Triangular Wave Conversion

    Application Examples 4 Use a DC power supply with +15 V and –15 V outputs to power the operational amplifier. 5 Use an oscilloscope to monitor the output waveform. 6 Set the square wave duty cycle to 50.00% and its amplitude to 5 V.

  • Page 133: 2-Wire Transmitter Verification

    Application Examples 2-Wire Transmitter Verification You can use the following method to verify the operation of a 2- wire transmitter. The method takes advantage of the ability of this instrument to simultaneously source voltage and measure current. 1 Turn the rotary switch to position.

  • Page 134: Figure 5-16 Verifying A Two-Wire Transmitter

    Application Examples Black Figure 5-16 Verifying a two-wire transmitter U1401A User’s and Service Guide...

  • Page 135: Frequency Transmitter Verification

    Application Examples Frequency Transmitter Verification For some frequency transmitters, you can use the square wave output as a source simulator and measure the current from the transmitter output. 1 Turn the rotary switch to the position. 2 Press MODE to cycle through duty cycle, pulse width, output level, and frequency adjustments.

  • Page 136: Figure 5-17 Verifying A Frequency Transmitter

    Application Examples Figure 5-17 Verifying a frequency transmitter U1401A User’s and Service Guide...

  • Page 137: Maintenance

    U1401A Handheld Multi-Function Calibrator/Meter User’s and Service Guide Maintenance Maintenance General maintenance Battery replacement Recharging the batteries Fuse replacement Troubleshooting This chapter will help you troubleshoot the U1401A for faults. Agilent Technologies...

  • Page 138: Maintenance

    Maintenance Maintenance Repairs or services which are not covered in this manual should only C A U T I O N be performed by qualified personnel. General maintenance Make sure that the terminal connections are correct for a particular WA R N I N G measurement before making any measurement.

  • Page 139: Battery Replacement

    Maintenance Battery replacement The batteries contain nickel-metal hydride and must be recycled or WA R N I N G disposed off properly. Remove all test leads and external adapter before opening the case. To avoid instruments being damage from battery leakage, always C A U T I O N remove dead batteries immediately.

  • Page 140: Figure 6-1 Battery Replacement

    Maintenance Replace all Loosen the screw batteries Slide the cover to the left side Figure 6-1 Battery replacement U1401A User’s and Service Guide...

  • Page 141: Recharging The Batteries

    Maintenance Recharging the batteries Do not discharge a battery by shorting it or subjecting it to reverse polarity. WA R N I N G Do not mix different types of battery. Make sure a battery is rechargeable before charging it. •...

  • Page 142: Fuse Replacement

    Maintenance Set slide switch at the CHARGE position Charging indication External AC adapter jack Green: Fully charged Yellow: Charging Figure 6-2 Recharging the batteries Fuse replacement This manual provides only the fuse replacement procedures, but not the N O T E fuse replacement markings.

  • Page 143: Table 6-1 Fuse Specifications

    9 Refer to Table 6- 1 for the part number, rating, and size of the fuses. Table 6-1 Fuse specifications Fuse Agilent part number Rating Size Type 2110-1464 630 mA/ 250 V 5 mm x 20 mm...

  • Page 144: Troubleshooting

    Maintenance Fuse 2 Fuse 1 Figure 6-3 Fuse replacement Troubleshooting To avoid electrical shock, do not perform any servicing unless you are WA R N I N G qualified to do so. If the instrument fails to operate, check the batteries and test leads.

  • Page 145: Table 6-2 Troubleshooting

    Maintenance When servicing the instrument, use only the specified replacement parts. Table 6- 2 will assist you in identifying some of the basic problems. Table 6-2 Troubleshooting Malfunction Identification of the problem No LCD display after switching • Check the position of the slide switch. Set it to the M or M/S position •...
  • Page 146 Maintenance U1401A User’s and Service Guide...
  • Page 147 U1401A Handheld Multi-Function Calibrator/Meter User’s and Service Guide Performance Tests and Calibration Calibration Overview Closed-case electronic calibration Agilent Technologies’ calibration services Calibration interval Other recommendations for calibration Environmental conditions Warm up Recommended Test Equipment Performance Verification Tests Self-verification Input performance verification...

  • Page 148: Performance Tests And Calibration

    TThis instrument should only be calibrated by qualified personnel with C A U T I O N the appropriate equipment. For detailed information about the calibration procedures, please contact your nearest Agilent technologies representative or authorized distributor This manual contains procedures for verifying the instrument performance, as well as procedures for making adjustments where necessary.

  • Page 149: Closed-Case Electronic Calibration

    EEPROM memory will not change even when the power is switched off. Agilent Technologies’ calibration services When your instrument is due for calibration, contact your local Agilent Service Center to inquire about recalibration services. Calibration interval A one- year calibration interval is adequate for most applications.

  • Page 150: Other Recommendations For Calibration

    Performance Tests and Calibration Other recommendations for calibration Specifications are only guaranteed within the specified period from the last calibration. Agilent recommends that readjustment should be performed during the calibration process for best performance. This will ensure that the Handheld Multi- Function Calibrator/Meter remains within its specifications.

  • Page 151: Recommended Test Equipment

    AC Voltage Fluke 5520A <1/5 instrument 1 year spec AC Current Fluke 5520A <1/5 instrument 1 year spec Frequency Agilent 33250A <1/5 instrument 1 year spec Temperature Fluke 5520A <1/5 instrument 1 year spec Duty Cycle Fluke 5520A <1/5 instrument 1 year spec...

  • Page 152: Performance Verification Tests

    Performance Tests and Calibration Performance Verification Tests Self-verification To perform a self- verification on the output voltage level of the instrument: 1 Turn the rotary switch to the position. 2 Short the input test leads for voltage measurement, then press momentarily to zero the residual of thermal effect until the measurement value is stable.

  • Page 153: Input Performance Verification

    Performance Tests and Calibration Input performance verification To verify the input functions of the Handheld Multi- Function Calibrator/Meter, perform the verifications tests listed in Table 7- 3. Refer to Table 7- 1 on page 131 for the recommended test equipment for verifying each function. Table 7-3 Input performance verification tests Error from...
  • Page 154 Performance Tests and Calibration Table 7-3 Input performance verification tests (continued) Error from nominal 1 Step Test Function Connection to 5520A Range 5520A output year Turn the rotary switch to Connect the Normal 500 mV 500 mVrms ±3.7 mVrms . Press to select Hi-Low output terminals of @ 45 Hz...
  • Page 155 Performance Tests and Calibration Table 7-3 Input performance verification tests (continued) Error from nominal 1 Step Test Function Connection to 5520A Range 5520A output year Turn the rotary switch to Connect the Normal 100 Hz 10 Hz ±5 mHz . Press to select Hi-Low output terminals of @ 16 mV...
  • Page 156 Performance Tests and Calibration Table 7-3 Input performance verification tests (continued) Error from nominal 1 Step Test Function Connection to 5520A Range 5520A output year Turn the rotary switch to Connect a diode to the 1.9 V ±1.45 mV U1401A input terminals in forward bias position.

  • Page 157: Output Performance Verification

    Performance Tests and Calibration Output performance verification To verify the output functions of the Handheld Multi- Function Calibrator/Meter, perform the verifications tests listed in Table 7- 4. Refer to Table 7- 1 on page 131 for the recommended test equipment for verifying each function. Table 7-4 Output performance verification tests Error from...

  • Page 158: Adjustment Considerations

    Performance Tests and Calibration Adjustment Considerations To adjust (calibrate) the instrument, you will need a set of test input cables and connectors for receiving the reference signals. You will also need a shorting plug. Adjustments for each function should be performed with the following considerations (where applicable): •...

  • Page 159: Adjustment Procedures

    Performance Tests and Calibration Adjustment Procedures Input calibration 1 Set the slide switch to the M/S position. 2 Allow the instrument to warm up for 20 minutes before performing calibration. 3 To enter the calibration mode, press more than one second. The primary display will indicate "CHEEP".

  • Page 160: Output Calibration

    Performance Tests and Calibration Output calibration 1 Set the slide switch to the M/S position. 2 Allow the instrument to warm up for 10 minutes before performing calibration. 3 To enter the calibration mode, press more than one second. The primary display will indicate “CHEEP”.

  • Page 161: Table 7-5 Output Voltage Calibration Steps

    Performance Tests and Calibration After finishing the CAL-0 and CAL-1 calibration procedures, the instrument will automatically enter the 1.5 V output calibration mode. Output voltage calibration Follow the steps below to perform calibration for the output voltage ranges and values listed in Table 7- 1 As you enter each calibration step, the primary and secondary displays show the output voltage value and...

  • Page 162: Table 7-6 Output Current Calibration Steps

    Performance Tests and Calibration Output current calibration 1 Without exiting the calibration mode, turn the rotary switch to any one of the “Current Input/Voltage Output” positions. 2 Connect the output terminals to a recommended multimeter (refer to Table 7- 1 on page 131 for the recommended test equipment).

  • Page 163: Specifications

    AC+DC specifications Temperature specifications Frequency specifications 1 ms peak hold specifications Resistance specifications Diode check and audible continuity specifications Output Specifications Constant voltage and constant current outputs Square wave output This chapter details the specifications of the U1401A. Agilent Technologies...

  • Page 164: General Specifications

    Specifications General Specifications Display • Both primary and secondary displays are 5-digit liquid crystal display (LCD) with a maximum reading of 51,000 counts and automatic polarity indication. Power Consumption • Charging battery: 9.3 VA typical • DC constant current at 25 mA, maximum load: 5.5 VA typical (on 24 V DC adapter) or 2.4 VA typical (on 9.6 V batteries) •...
  • Page 165 Approximately three hours, in an environment of 10 °C to 30 °C. (If the battery has been fully discharged, a prolonged charging time is required to bring the battery back to full capacity.) Warranty • Please refer to http://www.agilent.com/go/warranty_terms • Three years for the product • Three months for the standard accessories, unless otherwise specified •...

  • Page 166: Measurement Category

    Specifications Measurement Category The U1401A is intended to be used for measurement under Measurement Category II, 150 V for altitude up to 2000 m. Measurement category definitions Measurement CAT I Measurements performed on circuits that are not directly connected to MAINS. For example, measurements on circuits that are not derived from MAINS, and specifically protected (internal) mains- derived circuits.

  • Page 167: Input Specifications

    Specifications Input Specifications The accuracy is given as ± (% of reading + counts of least significant digit) at 23 °C ± 5 °C, with relative humidity less than 80% R.H., and warmed up for at least five minutes. Without warming up, an additional five counts of LSD will have to be added to the accuracy.

  • Page 168: Ac Specifications

    Specifications Table 8-2 DC current specifications Function Range Resolution Accuracy Burden voltage/shunt Overload protection 1 μA 0.06 V (1 Ω) DC current 50 mA 0.03% + 5 250 V, 630 mA Quick acting fuse 10 μA 0.6 V (1 Ω) 500 mA Always use the relative function to offset the thermal effect before measuring the signal.

  • Page 169: Ac+Dc Specifications

    Specifications Table 8-4 AC current specifications Accuracy Function Range Resolution 45 Hz to 5 kHz Burden voltage/shunt Overload protection 1 μA 0.06 V (1 Ω) AC current 50 mA 0.6% + 20 250 V, 630 mA (True-rms: From Quick acting fuse 10 μA 0.6 V (1 Ω) 500 mA...

  • Page 170: Temperature Specifications

    Specifications Table 8-6 AC+DC current specifications Accuracy Function Range Resolution 45 Hz to 5 kHz Burden voltage/shunt Overload protection 1 μA 0.06 V (1 Ω) AC+DC 50 mA 0.7% + 25 250 V, 630 mA current Quick acting fuse 10 μA 0.6 V (1 Ω) 500 mA (True-rms: From...

  • Page 171: Frequency Specifications

    Specifications Frequency specifications Table 8-8 Frequency specifications Minimum input Range Resolution Accuracy frequency Overload protection 100 Hz 0.001 Hz 0.02% + 3 1 Hz 250 Vrms 1 kHz 0.01 Hz 10 kHz 0.1 Hz 100 kHz 1 Hz 200 kHz 10 kHz Frequency sensitivity and trigger level for voltage measurement For the maximum input voltage- frequency product (V- Hz)

  • Page 172: Table 8-10 Duty Cycle Specifications

    Specifications Duty cycle Table 8-10 Duty cycle specifications Mode Range Accuracy at full scale DC coupling 0.1% to 99.9% 0.3% per kHz + 0.3% AC coupling 5% to 95% Pulse width [1, 2] Table 8-11 Pulse width specifications Range Accuracy at full scale 0.01 ms to 1999.9 ms 0.2% + 3 The accuracy for duty cycle and pulse width is based on a 5 V square wave input...

  • Page 173: Ms Peak Hold Specifications

    Specifications 1 ms peak hold specifications Table 8-13 Peak hold specifications Signal width Accuracy for DC mV/voltage/current Single event >1 ms 2% + 400 for all ranges Resistance specifications The following resistance specifications are valid if the maximum open voltage is less than +4.8 V. For continuity test, the instrument will beep when the resistance is less Ω.

  • Page 174: Diode Check And Audible Continuity Specifications

    Specifications Diode check and audible continuity specifications The overload protection is 250 Vrms and the instrument will beep when the reading is below 50 mV (approximate). Table 8-15 Diode check specifications Range Resolution Accuracy Test current Open voltage < +4.8 VDC Diode 0.1 mV 0.05% + 5...

  • Page 175: Output Specifications

    Specifications Output Specifications Accuracy is given as ± (% of output + counts of least significant digit) at 23 °C ± 5 °C, with relative humidity less than 80% R.H., and warmed up for at least five minutes. Constant voltage and constant current outputs Table 8-16 Constant voltage (CV) output specifications Maximum output Function...

  • Page 176: Table 8-18 Square Wave Output Specifications

    Specifications Square wave output The maximum input voltage protection is 30 VDC. Table 8-18 Square wave output specifications Output Range Resolution Accuracy Frequency (Hz) 0.5, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50, 60, 75, 0.01 0.005% + 1 80, 100, 120, 150, 200, 240, 300, 400, 480, 600, 800, 1200, 1600, 2400, 4800 Duty Cycle (%)
  • Page 177 (tel) 0800 047 866 (fax) 0800 286 331 Other Asia Pacific Countries: (tel) (65) 6375 8100 (fax) (65) 6755 0042 Or visit Agilent World Wide Web at: www.agilent.com/find/assist Product specifications and descriptions in this document are subject to change without notice. Always refer to Agilent Web site for the latest revision.

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