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Picotest M352XA User Manual

Digits 4.3" trms digital multimeter
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User's Manual
Version: 1.0

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Summary of Contents for Picotest M352XA

  • Page 1 User’s Manual Version: 1.0...

  • Page 2: Table Of Contents

    1.7 Inspection ..........................12 1.8 Options and Accessories ....................13 1.9 Manufacturer Information ....................13 1.10 The M352XA Series’ Dimension and Weight ............14 1.11 Specifications ........................15 1.12 Comparisons over M352XA Series ................21 2 Overview of M352XA Series ......................22 2.1 Setting up Your M352XA Series ..................
  • Page 3 3.1 Voltage Measurement (DC & AC) ................... 38 3.2 Current Measurement (DC & AC) ................... 40 3.3 Resistance Measurement (2 & 4-wire) ................. 42 3.4 Frequency & Period Measurement ................. 44 3.5 Ratio Measurement......................45 3.5.1 Ratio + ........................46 3.6 Continuity Measurement ....................
  • Page 4 4.3.4 Reading Hold ......................92 4.3.5 Limit ..........................93 4.3.6 Statistics ........................95 4.3.7 dB/dBm ........................96 4.4 Buffer Access Setup ......................97 4.4.1 File Name Giving ..................... 98 4.4.2 Fill Mode........................99 4.4.3 Buffer Type & Clean Buffer .................. 99 4.5 Acquirement ........................
  • Page 5 A.6 The Math Operation Command ................145 A.7 The Triggering Commands ..................148 A.8 The System-Related Commands ................. 149 A.9 The SCPI Status Pattern..................151 A.10 Status Reporting Commands ................157 A.11 SCPI Compliance Information ................158 A.12 IEEE-488 Compliance Information ..............160 DECLARATION OF CONFORMITY .................

  • Page 6: General Information

    If you have any questions after reading this information, please contact your local service representative. 1.1 Feature Overview M352XA is a series of 6 1/2 digits 4.3” TRMS multimeters including M3520A, M3521A, and M3522A, and provides wide ranges for general measurements, such as… DCV: 100mV, 1V, 10V, 100V & 1000V ACV: 100mV, 1V, 10V, 100V &...

  • Page 7: Advanced Setup

     NPLC Standard USB & LAN plus an optional GPIB/RS-232 remote control interface for  M3521A/M3522A. All of the AP software, firmware, and example source code can be found on Picotest  website www.picotest.com.tw 1.2 Advanced Setup To access the following setup quickly, there are some hot keys listed in the Table 1 or carefully read Chapter 3 to operate.
  • Page 8 Table 1 Advanced Key Operation Method Result Key pressed for 2 s Effectively provide a range selection. Range Integration/ Effectively enter the relative setup, and focus Key pressed for 2 s Bandwidth/ on the display digits. Aperture Effectively enter the relative setup, and focus Measure Key pressed for 2 s on the Input Jack selection.

  • Page 9: Warranty Information

    2. Warranty Period: This equipment is warranted against defects in material and manufacturing for a period of one year from the date of shipment. During the warranty period, PICOTEST is responsible for necessary repairs as long as the product can be proved to be defective.

  • Page 10: Precaution Of Operation

     The rear protective conduct terminal needs to be connected to the actual earth ground or electric shock may occur.  The patent and related documents for the equipment belong to PICOTEST CORP. and they aren’t allowed to be used by others without permission.

  • Page 11: Symbols And Terms

    PICOTEST service department if necessary.  Do not make the equipment difficult to operate or hard to connect with other device(s).  Only use PICOTEST power cord which is compliant with the local use or the one which has the equivalent ratings.

  • Page 12: Inspection

    1.7 Inspection Your product package is supplied with the following items:  One M352XA Multimeter unit. (88.3[H] x 212.8 [W] x 272.3 [D] mm, approx. 2.43 Kg)  One power line cord.  One USB cable.  One set of standard test leads ...

  • Page 13: Options And Accessories

    M3500-opt10 Shorting Plug M3500-opt11 K-Type Thermocouple 10 Channel TC Scanner Card M3500-opt12 (Universal Purpose and available for thermocouple usage) 1.9 Manufacturer Information Company: Picotest Corp., Address: 5F-1, 286-9, Hsin Ya Rd, Chien-Chen Zone, Kaohsiung, Taiwan TEL: +886-7-815-7183 FAX: +886-7-8158312 Website: www.picotest.com.tw Email:...

  • Page 14: The M352Xa Series' Dimension And Weight

    1.10 The M352XA Series’ Dimension and Weight Please get the dimension’s information in the following two ways. 1. The dimension without the handle and the front & Rear Bumpers is in the followin g Picture 1. (LxWxD – 212.8x88.3x272.3 mm) 2.

  • Page 15: Specifications

    1.11 Specifications Accuracy ± (% of reading + % of range) Function Range Input Resistance 1 Year (23°C ± 5°C) Resolution 100.0000 mV 0.1μV > 10GΩ 0.0050 + 0.0035 1.000000 V 1.0μV > 10GΩ 0.0035 + 0.0005 DC Voltage 10.00000 V 10μV >...
  • Page 16 100V to 1000V Ranges: 10MΩ ± 1% in parallel with <400pF. Input Bias Current <50pA at °C Common Mode Current <600nA peak-peak at 50Hz or 60Hz Earth Isolation 500Vpeak > 10GΩ and <300pF any terminal to chassis Common Mode Voltage 500Vpeak LO terminal to chassis maximum Autozero Off Error Add ±...
  • Page 17 Overrange 20% on all ranges Autozero Off Error Add ± (0.0005% of range + 5mΩ) within ± 1 10 minutes since last autozero °C ≤ Add ± (0.0020% of range + 10mΩ) within ± 5 60 minutes since last autozero °C ≤...
  • Page 18 1.00 + 0.04 5-10 0.30 + 0.04 10.00000mA 10nA 10-5k 0.10 + 0.04 5k-10k 0.10 + 0.04 1.00 + 0.04 5-10 0.30 + 0.04 100.0000mA 100nA 10-5k 0.10 + 0.04 5k-10k 0.10 + 0.04 1.00 + 0.04 5-10 0.30 + 0.04 1.000000A 1μA 10-5k...
  • Page 19 Frequency & Period Accuracy ± (% of reading) Function Frequency (Hz) 1 Year (23º C±5º C) Range 3 - 10 0.07 Frequency 10 - 100 0.03 100mV to 750V & 100 – 1k 0.02 Period 1k – 300k 0.004 Continuity in 2-Wire Accuracy ±...
  • Page 20 Thermocouple Accuracy ± (% of reading + % of range) Range Function Type 1 Year (23º C±5º C) PT100 Probe Accuracy + 0.05 。 (DIN/IEC 751) 5kΩ Probe Accuracy + 0.1 。 Thermocouple K/J/T/E/N Probe Accuracy + Reference Junction Accuracy + 0.3 。...

  • Page 21: Comparisons Over M352Xa Series

    1.12 Comparisons over M352XA Series Key specifications M3520A M3521A M3522A Digits of resolution 6½ 6½ 6½ Basic DCV accuracy 75 ppm 35 ppm 30 ppm Max reading rate 300 rdgs/s 10K rdgs/s 100K rdgs/s 1K rdgs with/without 500K rdgs with time info 2.5M rdgs with time info...

  • Page 22: Overview Of M352Xa Series

    DMMs. 2.1 Setting up Your M352XA Series The purpose of this section is to prepare you for using M352XA series. You may want to check if you have all the parts with your multimeter. This equipment is handled and inspected professionally before shipping out to our customers.
  • Page 23 S tep 2 ( Pull out the handle) 【 【 【 【 】 】 】 】 When the handle is turned up to 90° with the DMM, please pull out the handle from the DMM as shown in Figure 1-2. Figure 1-2 .

  • Page 24: To Connect The Power

    If your electric supply is unstable, you’d better connect a UPS between the electric supply and M352XA to prevent DMM from damage. Warning! The power cord supplied with M352XA contains a separate ground wire for use with grounded outlets. When proper connections are made, instrument chassis is connected to power line ground through the ground wire in the power cord.

  • Page 25: Factory Default When Power-On

    2.1.3 Factory Default When Power-ON Table 2-1 shows the factory default of M352XA series. Table 2-1 Function Default Location after Power On Autozero Frequency and Period Source AC Voltage Output Format ASCII Frequency 20Hz AC Voltage AC Digits Range Auto DC digits 6.5 (1 PLC)

  • Page 26: M352Xa Series Panel Introduction

    2.2 M352XA Series Panel Introduction For you to become familiar with the M352XA DMM, we will give a brief introduction to the basic operations. There are four major parts of M3520A: (2.2.1) the front panel, (2.2.2) the display types, (2.2.3) the display, and (2.2.4) the rear panel. We will discuss each of them in the following sections.
  • Page 27 After pressing RUN/STOP, M352XA series will just keep running and triggering. Power: Pressing the power button, the M352XA series will be activated. Pressing it again, they will be shut down.

  • Page 28: Overview Of The Display States

    Note: It’s important to know that when executing the multi-channel measurement ※ on DCV, the measurements are able to be made via the following connections, for example INPUT HI up to 1000V, SENSE HI up to 12V, and SENSE LO up to 12V. As for the above grounds, they are connected to INPUT LO.
  • Page 29 2. Chart State This chart state shows the real-time measured readings cumulated until the function is changed. 3. Histogram State 4. Dual Display State...
  • Page 30 5. Multi-Channel Display State 6. Menu Setup State 7. Multi-Language Selection State...
  • Page 31 8. Date & Time Setup State 9. Backlight Adjustment State 10. Backlight Saver State...

  • Page 32: The Display

    11. Screen Shot State This function has to work with a USB stick memory in FAT32 format. Without it, the screen shot is not able to be used. When the USB device is plugged, the screen will show “The USB drive detected” as shown below. Pressing the DISPLAY button on the front panel for 3 seconds, the screen shot will be applied, and show “File –...
  • Page 33 The Upper Row The Middle Row The Bottom Row Figure 2-17 2.2.3.1 The Upper Row (Annunciators) : It indicates the buffer’s state showing empty.  It indicates the state of immediate measuring, which goes with a flashing green  point. When pressing stop button, it will stop triggering, and show “IMM STOP”.
  • Page 34  DC VOLTAGE: It indicates the function of DCV.  -0.000095: It shows the value after measuring.  V: It indicates the unit of the measurement.  10MΩ: It indicates impedance information.  AZERO: It indicates the AUTO ZERO is enabled. ...

  • Page 35: The Rear Panel

    2.2.4 The Rear Panel The rear panel of the M3521A/M3522A is shown as Figure 2-20. This figure includes important abbreviated information that should be reviewed before using the instrument. Rear Panel Figure 2-20 INPUT HI & LO: The input HI and LO are used for all measurements, except DC/AC ...

  • Page 36: Fuse Replacement At 3A And 10A Terminals

    also supports 100V to 240V input AC power. USB Connection (USBTMC): Connects a remote computer for changing operation     environment instead of the front panel control. LAN Connection: Connects a remote computer for changing operation environment     instead of the front panel control.

  • Page 37: Fuse Replacement At Power Input

    When the replacement is done, install the cabin back, and fasten the screw. 2.4 Fuse Replacement at Power Input There is a fuse in the power module on the rear panel. It can be equipped at your place, but requires a qualified engineer to do this. Replacing this fuse, please refer to the following procedures.

  • Page 38: Basic Measurement Function

    This chapter introduces some basic measurement functions on M352XA series. You will learn how to use it to measure voltage, current, resistance, frequency, period, continuity, diode and temperature in this chapter. Users are allowed to set M352XA series via three kinds of methods below.
  • Page 39 4. Press DCV or ACV button for DC or AC voltage measurement respectively. 5. Set DC voltage, such as the Range, Integration, Auto Zero, Null, Filter, Math, Read Hold, High Z, Trigger, or Display using the soft-key. If measuring AC voltage, you might need to set Range, Bandwidth, Null, Filter, Math, Read Hold, Trigger, or Display using the soft-key.

  • Page 40: Current Measurement (Dc & Ac)

    Figure 3-5 3.2 Current Measurement (DC & AC) The ranges for DC current measurement in M352XA series are 10mA, 100mA, 1A, 3A (for M3520A/M3521A) and additional ranges 1uA, 10uA, 100uA, 1mA or 10A (for M3522A). For AC current measurements, the range is 10mA~3A (for M3520A/M3521A) and additional ranges 100uA, 1mA or 10A (for M3522A).
  • Page 41 How to measure current 1. Select an input signal connection on the front or rear panel of M3522A. 2. Connect the test leads to the terminals as shown in Figure 3-6, 3-7, and 3-8. 3. Set Display Digits of DCI (Refer to 4.1.3), Bandwidth of ACI (Refer to 4.1.2.1) or skip this step if default is to be used.

  • Page 42: Resistance Measurement (2 & 4-Wire)

    The 3A current measurement via the rear terminal panel like Figure 3-8 also can be used. First of all, the front-rear terminal button has to be pressed, and then follow the same connection as the front panel. However, this rear current measurement is available for M3522A only.
  • Page 43 2-Wire Connection Figure 3-9 Note: Source current flows from the INPUT HI to INPUT LO terminals. ※ 4-Wire Connection Figure 3-10 Note: Source current flows from the INPUT HI to INPUT LO terminals. ※ The rear terminal panel of M3522A also can be used via the same procedures like the front panel as shown in Figures 3-11 and 3-12.

  • Page 44: Frequency & Period Measurement

    4-Wire Connection via Rear Panel Figures 3-12 3.4 Frequency & Period Measurement M3520 series use an on-board counter with 25MHz to measure the frequency (period). The measurement band is from 3Hz to 300kHz (or 333 ms to 3.3 μs) and the measurement voltages range from 100mV to 750 V in AC.

  • Page 45: Ratio Measurement

    Input Impedance = 1MΩ in parallel with < 100pF (Warning: Maximum Input = 750V RMS, 1000V peak, 8 x 10 V-Hz) Frequency & Period Measurement Figure 3-13 3.5 Ratio Measurement This ratio measurement gives the result of an input DC voltage to a reference DC voltage according to the following equation: There are two ways to make a ratio measurement: Through the front panel operation or the remote interface operation.

  • Page 46: Ratio

    Note5: The specified measurement range is used only for the signal connected to the ※ Input terminals. And the signal on the Input terminal can be any dc voltage up to 1000 V. Note6: The rear terminal panel of M3522A also can be used via the same procedures ※...

  • Page 47: Diode Measurements

    ※ 3.7 Diode Measurements M352XA series uses a current source of 1 mA for diode testing. The maximum resolution is 10 μV on a fixed range of 1 V DC. The default threshold voltage is fixed between 0.3 and 0.8 volts and the reading rate is fixed at 0.1 PLC (The voltage bound is adjustable from 0.01V up to 1.2V.).

  • Page 48: Temperature Measurements

    √ √ M352XA series provides thermistor measurement. For thermocouples measurement, M3521A/M3522A supports 9 types: B, C, E, J, K, N, R, S and T. Ensure that the temperature function is configured for the right sensor type before measuring (Refer to 4.1.8 for how to make the sensor configuration).

  • Page 49: Thermocouple (Tco) Measurement

    3. Thermistor (Therm2W/Therm4W): Type in 2252Ω, 5KΩ, 10KΩ, or NTC_USER Table 3-1 (Temperature Ranges for Each Thermocouple Type) Sensor Type Temperature Range(°C) 600~1820 0~2316 -250~1000 -210~1200 -200~1372 -200~1300 0~1767 0~1767 -250~400 3.8.1 Thermocouple (TCO) Measurement The concept of the TCO measurement is the same as the thermocouple measurement which adopts a simulated method to get temperature readings via INPUT HI and LO terminals.
  • Page 50 RTD measurement in 2 wiring with From the above RTD principle, M352XA series. The following pictures are the RTD diagram, and the RTD adapter connected with the front panel of M352XA series. 1. RTD Diagram...
  • Page 51 3.8.2.2 RTD Measurement in 3 Wiring let’s get to see the RTD measurement in 3 wiring with From the above RTD principle, M352XA series. The following pictures are the RTD diagram, and the RTD adapter connected with the front panel of M352XA series. Ω...

  • Page 52: Thermistor Measurement

    PTC thermistors are commonly installed in series with a circuit, and used to protect against overcurrent conditions, as resettable fuses. Here the M352XA series provides 2W & 4W thermistor types, such as 2252Ω, 5KΩ, 10KΩ, or NTC_USER. How to measure temperature with thermistor types: Use the terminal switch to select front/rear operation (for M3522A only).

  • Page 53: Front Panel Operations

    The purpose of Auto Zero function is used for minimizing the offset influence on your measurements. When Auto Zero is enabled, M352XA series take the input signal reading as a base value and then internally disconnects the input signal, and takes an offset reading (a null offset).
  • Page 54 1. Front Panel Operation For the front panel operation, users can follow one of three kinds of measurement setting methods instructed at the beginning of the Chapter 3 to set. Be aware of that Auto Zero setup is always affected by the resolution setup. Whenever the resolution is altered, Auto Zero may be changed accordingly.
  • Page 55 The Auto Zero via the Function-Button Operation Figure 4-2 3) Press the MENU button on the front panel. Excess the Measurement Setting. Reach the selection of Auto Zero. Press the Enter button to enable/disable the Auto Zero (see the Figure 4-3). The Auto Zero via the MENU-Button Operation Figure 4-3 Note: The relation between resolution and Auto Zero is shown in Table 4-1.

  • Page 56: Filter

    4.1.2 Filter Filter is used to remove noises when measuring readings. M352XA series is equipped with two types of filters: AC filter and digital filter. AC filter is for AC measurements only. It also affects the speed of M352XA series to yield a measurement reading.
  • Page 57 How to set AC Filter in AC measurements: You can set the AC Filter either through the front panel operation or the command operation. 1. Front Panel Operation You can configure the AC filter either through the soft-key or the menu-button. A.

  • Page 58: Digital Filter

    DETector:BANDwidth {3|20|200|MIN|MAX} 4.1.2.2 Digital Filter M352XA series uses an averaging digital filter to yield a reading for display from a specified number of measurement readings in the past. The past measurement readings are stored in a stack of memory. The number may be in the range of 2 to 100. You may select one of the two modes of digital filter operations: Moving Average or Repeating Average.
  • Page 59 yields one reading for display every specified number of measurement readings. Digital filter is not available for diode, continuity, frequency and period measurements. Default The digital filter is enabled in moving average mode with 10 readings by default. How to enable/disable digital filter Press the Filter button to switch the digital filter function.

  • Page 60: Resolution Setup (Digits)

    Remote Interface Operation Set the Filter state, type, and count. The Digital Filter via the MENU-Button Operation Figure 4-7 2. Command Operation Use the following commands to set your digital filter: SENSe:AVERage:TCONtrol {MOVing|REPeat} SENSe:AVERage:TCONtrol? SENSe:AVERage:COUNt {<value>|MINimum|MAXimum} SENSe:AVERage:COUNt? [MINimum|MAXimum] SENSe:AVERage:STATe {OFF|ON} SENSe:AVERage:STATe? 4.1.3 Resolution Setup (Digits) While measuring DC and resistance, resolution with the number of digits on a multimeter...
  • Page 61 Default The default value for the resolution is slow 5.5 digits and the default value will be restored when the meter has been turned off or after a remote interface reset. The user selected value for the resolution setup is stored in a volatile memory and the setup is only valid for the current measurement function.
  • Page 62 Remote Interface Operation     Set the Display  Digits.     The Resolution Setup via the MENU-Button Operation Figure 4-9 Note: Through the same method, users are also allowed to set the Range, Integration ※ Rate, Auto Zero, Input Impedance, and Sub Display.

  • Page 63: Dc Input Resistance

    4.1.4 DC Input Resistance To reduce the effect of loading errors due to the input resistance, M352XA series allows you to select a much larger input resistance (HighZ>10GΩ/Auto) for all range measurements. This feature is only available for DC voltage measurements and it is not applicable to other measurement functions.

  • Page 64: Threshold Resistance (Continuity) Setup

    Remote Interface Operation      Set the Input  Impedance.    The Impedance Setup via the MENU-Button Operation Figure 4-11 3. Command Operation Use the following commands with your PC to set the input impedance for your measurement.

  • Page 65: Range (Manual & Auto)

    The Threshold Setup via the Soft-Key Operation Figure 4-12 4.1.6 Range (Manual & Auto) When making measurements except CONT, DIODE and Temperature, you can let the machine choose a range for you, or you can select the appropriate ranges manually by yourself.

  • Page 66: Integration

    1. Front Panel Operation Set the DCV function on the front panel for example.  Connect the no-powered unit (DUT) to the Input HI and LO of M352XA series.  Turn on the power of the DUT.  Your M352XA series will automatically pick a proper range for your input source (see ...
  • Page 67 There are several integration times in M352XA series for you to select from: 0.0005, 0.001, 0.002, 0.006, 0.02, 0.06, 0.2, 1, 10, and 100 PLC. Default For DCV, DCI, and resistance measurement, the default integration time is 10 PLC. The user selected value is stored in a volatile memory and the default value will be restored when the meter is power-off.
  • Page 68 Remote Interface Operation Set the Integration. The Resolution Setup via the MENU-Button Operation Figure 4-16 Note: Through the same method, users are also allowed to set the Range, Rate, Auto ※ Zero, Display Digits, Input Impedance, and Sub Display. Command Operation Use the following commands on your PC terminal to set the resolution.

  • Page 69: Sensor Selection For Temperature Measurements

    integration time, and you can use the following commands to set it. Specify 10 ms (4.5 digits), 100 ms (default; 5.5 digits), or 1 second (6.5 digits). SENSe:FREQuency:APERture {0.001|0.01|0.1|1|MINimum|MAXimum} SENSe:FREQuency:APERture? [MINimum|MAXimum] SENSe:PERiod:APERture {0.01|0.1|1|MINimum|MAXimum} SENSe:PERiod:APERture? [MINimum|MAXimum] The following table 4-3 shows the relationship between the integration time and the measurement resolution.
  • Page 70 Thermistors are of two opposite fundamental types: With NTC thermistors, resistance decreases as temperature rises. An NTC is  commonly used as a temperature sensor, or in series with a circuit as an inrush current limiter. With PTC thermistors, resistance increases as temperature rises. PTC thermistors are ...
  • Page 71 Instead of the temperature coefficient k, sometimes the temperature coefficient of resistance α T ("alpha sub T") is used. It is defined as Note: The above description is quoted from https://en.wikipedia.org/wiki/Thermistor ※ 4.1.8.2 Thermocouple A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction.
  • Page 72 K-type thermocouple (chromel–alumel) is in the standard thermocouple measurement configuration. The measured voltage V can be used to calculate temperature s e n s e provided that temperature is known. r e f The standard configuration for thermocouple usage is shown in the figure. Briefly, the desired temperature Tsense is obtained using three inputs—the characteristic function E(T) of the thermocouple, the measured voltage V, and the reference junctions' temperature Tref.
  • Page 73 1. Front Panel Operation  Select the temperature function pressing the TEMP button.  Input the thermocouple adapter, and wire it to your DUT.  Press the soft-key corresponding to the Transducer, and then TCO.  Press the Exit button once, and the soft-key to the Type (See Figure 4-17). ...
  • Page 74 Temperature Scale of 1990”. In each subrange, the calibration constants required for that subrange are listed. Default The default transducer, and sensor type in M352XA series is RTD2W and PT100 in order. How to set up RTD You can set up the RTD configuration either through the front panel operation or the...
  • Page 75 1. Front Panel Operation     Select the temperature function pressing the TEMP button.     Input the RTD adapter, and wire it to your DUT.     Press the soft-key corresponding to the Transducer, and then RTD2W/3W/4W. ...

  • Page 76: Remote Interface Selection

    4.1.9 Remote Interface Selection The M3521A/M3522A supports GPIB/RS-232 (optional), USB, and LAN interfaces, but only one interface can be activated at a time. If you are using GPIB/RS-232, you must set the same address/Boud Rate for the multimeter and the connected PC. You can set the LAN IP and your PC IP under the same router, GPIB address to any value from 0 and 31 or RS-232 Boud Rate from 9600 to 115200.
  • Page 77 Note: The same IP address setup might conflict your DMM with other connected ※ devices under the same application. 2. GPIB Interface Setup GPIB Setup Figure 4-21 Address: This address value is allowed to set from 1 to 30. Once the address is ...
  • Page 78 devices under the same application. Note2: When your DMM is remotely connected at first time, your wired PC will show the ※ unidentified information whose expressed style might be different from other OS version. Here it shows under Windows 10 64-bit. In this case, the USBTMC driver with the keyword “NI-VISA”...

  • Page 79: Input Terminal Switch

    Figure 4-24 4.2 Trigger Operations In this section we will discuss the triggering system in M352XA series. They provide a variety of trigger operations. You can select a trigger mode, a trigger source and different trigger settings for a specific measurement. The user’s selection is stored in a volatile memory and the default settings will be restored after power-off.
  • Page 80 Trigger Level: +0.000000 is the format. It can work with the source of Internal.  Sample Count: Setting this will stop sampling when reaching the sample number  which can be set with 500000 at most. By default, the M352XA series take only one reading on each trigger. Trigger Configuration Figure-26 A.
  • Page 81 Figure-27 B. External Triggering Mode This mode needs an external device to trigger M352XA series. In detail, you apply a trigger pulse to the Ext TRIG (BNC) terminal on the rear panel. External hardware triggering is like using single trigger but the trigger source is an external hardware.
  • Page 82 The way to know External Trigger Terminal  You can trigger the M352XA by using a low-true pulse input to the Ext Trig (external trigger) terminal located on the rear panel (Refer to Figure-29). And to use this terminal via the remote interface which are only provided by...
  • Page 83 Timer Trigger Setup Figure-31 D. Manual Triggering Mode Manual triggering mode takes one reading (or specified number of readings) each time when you execute Manual soft- key sub-listed at Trigger. (Please refer to 4.2.3 for setting up the number of samples on each trigger.) When the MAN in green on the upper side of the display is lit, the meter is ready for next trigger event.
  • Page 84 Manual Trigger Setup Figure-32 In addition, the software trigger is similar to the manual triggering, but instead of using the “Manual” soft-key on the front panel, you send a command from your PC to the multimeter to generate an event. For using software trigger, use the following command from your PC terminal to set trigger source: TRIGger:SOURce BUS E.

  • Page 85: Calculation Operations

    Table 4-4 Trigger Delay Measurement Function Setup Time PLC >= 1 1.5 ms DCV/DCI PLC < 1 1.0 ms 100Ω ~ 100kΩ 1.5 ms Ω2 and Ω4 1 MΩ 15 ms (PLC >= 1) 10 MΩ ~ 100 MΩ 100 ms 100Ω...

  • Page 86: Null

    provided for your requirement on measurement. Calculation Setup Figure-34 Table 4-5 Function FREQ/PERIOD DCV/DCI ACV/ACI Ω2W/Ω4W CONT/DIODE TEMP/CAP /RATIO Item Null √ √ √ √ √ √ Filter √ √ √ √ √ √ Math √ √ √ √ √ √...

  • Page 87: Filter

    connect the two test leads to the input source. The value with null offset will show on the display. In addition, the null offset value can be found and adjusted manually by pressing the NULL soft-key for two seconds. Select the Null Value, and press the ENTER button/soft-key/knob to set a value or leave it to gain a value when any impedance is conducted, and then activate the NULL function like the procedure1 below.
  • Page 88 continuity and diode testing. Note2: The “MATH” indicator displays the state of a mathematical feature, and will be ※ shown by enabling whichever math feature. Also, press the same buttons again for the enabled math feature will disable the same math feature. To access the Math function, you can press the soft-key corresponding to the Math for two seconds.
  • Page 89 to the scanner card user’s guide.). Second, if the input current source you want to measure exceeds the current specification, 3A/10A, of the M3520 series. Then the DCV/ACV and MX+B functions would be helpful. The current value is calculated through the equation as follows. “I=V/R”. Where: I = Current being determined V = Voltage measured by the DMM R = Shunt resistance value...
  • Page 90  Externally connect a current shunt “0.1Ω” in parallel connection to the INPUT HI & LO and a current source 10A.  Press the soft-key correspondent to the Math for two seconds.  You need to choose the Math format to MX+B, and input the current shunt value “M = 1/0.1= 10Ω”...
  • Page 91 How to use the Percent function There are two ways to make a percent measurement: Through the front panel operation or the command operation. 1. Front Panel Operation To specify a target value, you need to configure Percent function through the following procedures as shown as Figure 4-38.

  • Page 92: Reading Hold

    4.3.3.3 Reciprocal The measured values can be calculated in reciprocal. The format is 1/X. X stands for the measured value. The specified target value is stored in a volatile memory and will be cleared after the meter has been turned off or a command reset. How to use the Percent function There are two ways to make a reciprocal measurement: Through the front panel operation or the command operation.

  • Page 93: Limit

    reading is stable. The multimeter considers a reading stable when three consecutive readings are within the sensitivity band. How to use/set the Reading Hold This feature is only available from the front panel operations. To enable the reading hold, choose a measurement function you want, such as Ω2W for example, and then press the soft-key correspondent to the Read Hold once.
  • Page 94 N ote: You can also use this HI/LO measurement as a Pass/Fail application with the ※ setup of TALK ONLY MODE, and finish the transmission through the Pin 1 and Pin 9 of the RS-232 (DB9). How to set the limit You can set the limit either through the front panel or the command operation.

  • Page 95: Statistics

    CALCulate:STATe {OFF|ON} CALCulate:STATe? CALCulate:LIMit:LOWer {<value>|MINimum|MAXimum} CALCulate:LIMit:UPPer {<value>|MINimum|MAXimum} 4.3.6 Statistics When enabling the statistics function on the M3521A/M3522A, it automatically calculates statistics on those measurements. To get accurate displayed statistics of AC measurements via the front panel operation, the default manual trigger delay must be activated via the soft-key of Trigger.

  • Page 96: Db/Dbm

    4.3.7 dB/dBm The dB feature takes a DC or AC voltage measurement and displays it in decibel unit in correspondence to a relative reference value. The calculation of dB is listed below: dB = (Input signal in dBm) – (relative value in dBm) ×...

  • Page 97: Buffer Access Setup

    4.4 Buffer Access Setup You can store up to 1,000 measurements in the reading memory of the M3520A, 10,000 measurements on the M3521A, 500,000 with time/1,500,000 without time information measurements on the M3522A. Readings are stored in a first-in, first-out (FIFO) buffer; when reading memory is full, the oldest readings are lost as newer readings are taken.

  • Page 98: File Name Giving

    4.4.1 File Name Giving To save data over your measurements, you have to file them with a specific name or leave it with a name that the system gives such as the Default 1 to 5. And data can be stored in 5 files at most.

  • Page 99: Fill Mode

    4.4.2 Fill Mode The fill mode relates to the Buffer Size. If you choose Loop, the buffer size will be filled up with data. When it’s full, the existed data will be overwritten by new data cyclically under a first-in-and-first-out rule. If choosing Once, the buffer size will be filled up with data.
  • Page 100 1. Front Panel Operation Select a measurement function you need.  Enter the Buffer setup through the path, MENU>Buffer Access.  Press the soft-key of the buffer type.  Select the Full Type/Simple Type, and press the Enter to confirm. ...

  • Page 101: Acquirement

    4.5 Acquirement M3521A/M3522A can operate in the continuous, data logging, or digitize (for M3522A only) mode as described below. Please note that when data-logging or digitizing to the non-volatile or the internal memory, if you access the instrument with commands through any interfaces such as USB/GPIB/RS-232/LAN, and return to local by pressing Local, the data will be cleared, excluding those which had been completely saved in the Archive or those saved in the USB hard drive.

  • Page 102: Data Log Mode

    4.5.2 Data Log Mode The Data Log mode is standard on the M3521A/M3522A only, as is available only from the DMM's front panel. Data Log mode allows you to set up data logging into the instrument’s nonvolatile memory, or to internal/external USB file(s), without programming, and without a connection to a computer.
  • Page 103 only use auto trigger (default) or single trigger (press the Single button on the front panel for data logging. Specify the delay time in second (max./min. Setup: 10sec/10μsec)  Select whether to log data to the internal or USB file(s). ...

  • Page 104: Digitize Mode

    4.5.3 Digitize Mode Digitizing is the process of converting a continuous analog signal like a sine wave, into a series of discrete readings as Figure 4-50. The Digitizing Process Figure 4-50 The digitize mode applies under the DCV/DCI function only on the M3522A, and as is available only from the DMM's front panel.
  • Page 105 The Relationship between Alias Frequency and Input Signal Figure 4-51 Figure 4-51 shows a sine wave sampled at a rate slightly less than 2F. As shown by the dashed line, the result is an alias frequency which is much different than the frequency of the signal being measured.

  • Page 106: Scanner Card

    shown as Figure 4-48. Enter the Acquirement setup through the path, MENU>Acquirement.  Change the Acquire state to “Digitize” via pressing the soft-keys or knob.  Specify the sample rate from 0.6Hz to 100kHz.  Or specify the sample type as interval for example, 20ms. ...
  • Page 107 When the Step or Scan at the Scan Mode is chosen, you’re allowed to set only the Scan Mode and view All CH State. In addition, you can set up measurement channels for DMM functions and apply the trigger to the measurements. For more triggering setup, refer to the section 4.2. You can also set up options specific to channels, such as assigning labels and adding channel delays.
  • Page 108 Taking M3500-opt09 20CH general purpose scanner card as the example, the internal connection information with other sources is shown below. In addition, to reach the multi-source measurements, the application must go with the SC-TOOL or other application software. Internal Wire on the Scanner Card Figure 4-54 Note 1: CH1 &...

  • Page 109: Event Log

    4.7 Event Log The event log provides the history records regarding the actions you make on M352XA series. On the other hand, you’re allowed to set the display warning, the display information, the log warning, the log information, the popups, the clean log, and the save-to-USB.

  • Page 110: Save/Recall

    Event Log Checking Figure 4-55 4.8 Save/Recall M352XA series have memories to save the setup state, such as Date & Time, Func(Range), PLC(Digit), Auto Zero, Null, Trig Source, Trig Delay, and Sample Count How to save/recall the profile name from the memory You can save and recall the state you want through either the front panel or the command operation.
  • Page 111 Setting up State Saving/Recalling Figure 4-56...

  • Page 112: Remote Interface Operations

    Remote Interface Operations M3521A/M3522A provides the remote interfaces, such as a built-in USB (USBTMC), and a built-in LAN (RJ-45), as well as supporting an optional GPIB (IEEE-488) or RS-232. Furthermore, this chapter lists the SCPI (Standard Commands for Programmable Instrument) commands available to control the multimeter. For the first time to use SCPI, you’d better to refer to Appendix B.

  • Page 113: Pass/Fail Output Via Rs-232 Connector

    Warning! You can’t use the RS-232 interface to send SCPI commands if you want to enable the Pass/Fail signal output. You must use other interfaces for remote control. 5.3 Setting Up for Remote Interface via Software You may use the M3521A/M3522A application developed by PICOTEST to remotely...

  • Page 114: Remote Interface Commands

    control the multimeter. So far you can control the meter via LAN interface, and operate on its simulated web page app. This web page panel doesn’t support SCPI command control. For more LAN interface setup, the section 4.1.9 shows the way to connect, and setup. 5.4 Remote Interface Commands You can instruct the multimeter to take measurements using the SCPI commands after the appropriate setup for your selected remote interface.
  • Page 115 measurement, use INITiate or READ? Command. CONFigure: VOLTage:DC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} VOLTage:DC:RATio {<range>|MIN|MAX|DEF },{<resolution>|MIN|MAX|DEF} VOLTage:AC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} CURRent:DC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} CURRent:AC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} RESistance {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} FRESistance {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} FREQuency {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} PERiod {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} CONTinuity DIODe TCOuple TEMPerature CONFigure? The READ? Command The READ? Command changes the state of the trigger system from the “idle” state to the “wait-for-trigger”...
  • Page 116 The SENSe Commands NOTE: Default parameters are shown in bold italic. ※ [SENSe:] FUNCtion “VOLTage:DC” FUNCtion “VOLTage:DC:RATio” FUNCtion “VOLTage:AC” FUNCtion “CURRent:DC” FUNCtion “CURRent:AC” FUNCtion “RESistance” (2-wire Ω) FUNCtion “FRESistance” (4-wire Ω) FUNCtion “FREQuency” FUNCtion “PERiod” FUNCtion “CONTinuity” FUNCtion “DIODe” FUNCtion “TCOuple” FUNCtion “TEMPerature”...
  • Page 117 CURRent:DC:RANGe:AUTO {OFF|ON} CURRent:DC:RANGeAUTO? CURRent:AC:RANGe:AUTO {OFF|ON} CURRent:AC:RANGe:AUTO? RESistance:RANGe:AUTO {OFF|ON} RESistance:RANGe:AUTO? FRESistance:RANGe:AUTO {OFF|ON} FRESistance:RANGe:AUTO? FREQuency:VOLTage:RANGe:AUTO {OFF|ON} FREQuency:VOLTage:RANGe:AUTO? PERiod:VOLTage:RANGe:AUTO {OFF|ON} PERiod:VOLTage:RANGe:AUTO? [SENSe:] VOLTage:DC:RESolution {<resolution>|MINimum|MAXimum} VOLTage:DC:RESolution? [MINimum|MAXimum] VOLTage:AC:RESolution {<resolution>|MINimum|MAXimum} VOLTage:AC:RESolution? [MINimum|MAXimum] CURRent:DC:RESolution {<resolution>|MINimum|MAXimum} CURRent:DC:RESolution? [MINimum|MAXimum] CURRent:AC:RESolution {<resolution>|MINimum|MAXimum} CURRent:AC:RESolutioin? [MINimum|MAXimum] RESistance:RESolution {<resolution>|MINimum|MAXimum} RESistance:RESolution? [MINimum|MAXimum] FRESistance:RESolution {<resolution>|MINimum|MAXimum} FRESistance:RESolution? [MINimum|MAXimum] [SENSe:] UNIT {Cel|Far|K}...
  • Page 118 TEMPerature:RTD:BETA {<value>|MINimum|MAXimum} TEMPerature:RTD:BETA? [MINimum|MAXimum] TEMPerature:RTD:DELTa {<value>|MINimum|MAXimum} TEMPerature:RTD:DELTa? [MINimum|MAXimum] TEMPerature:SPRTD:RZERo {<value>|MINimum|MAXimum} TEMPerature:SPRTD:RZERo? [MINimum|MAXimum] TEMPerature:SPRTD:A4 {<value>|MINimum|MAXimum} TEMPerature:SPRTD:A4? [MINimum|MAXimum] TEMPerature:SPRTD:B4 {<value>|MINimum|MAXimum} TEMPerature:SPRTD:B4? [MINimum|MAXimum] TEMPerature:SPRTD:AX {<value>|MINimum|MAXimum} TEMPerature:SPRTD:AX? [MINimum|MAXimum] TEMPerature:SPRTD:BX {<value>|MINimum|MAXimum} TEMPerature:SPRTD:BX? [MINimum|MAXimum] TEMPerature:SPRTD:CX {<value>|MINimum|MAXimum} TEMPerature:SPRTD:CX? [MINimum|MAXimum] TEMPerature:SPRTD:DX {<value>|MINimum|MAXimum} TEMPerature:SPRTD:DX? [MINimum|MAXimum] [SENSe:] VOLTage:DC:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum} VOLTage:DC:NPLCycles? [MINimum|MAXimum] CURRent:DC:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum} CURRent:DC:NPLCycles? [MINimum|MAXimum] RESistance:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum}...
  • Page 119 AVERage:COUNt {<value>|MINimum|MAXimum} AVERage:COUNt? [MINimum|MAXimum] AVERage:STATe {OFF|ON} AVERage:STATe? [SENSe:] ZERO:AUTO {OFF|ONCE|ON} ZERO:AUTO? GAIN:AUTO {OFF|ONCE|ON} GAIN:AUTO? INPut: IMPedance:AUTO {OFF|ON} IMPedance:AUTO? Scanner Card Configuration Commands ROUTe:CLOSe <channel> ROUTe:CLOSe? ROUTe:OPEN ROUTe:STATe? ROUTe:SCAN:FUNCtion <channel>,{<function>|“VOLT:DC”|“VOLT:AC”| “FREQuency”|“RESistance”|“FRESistance”|“TCOuple”| “FRESistance”| “NONE”} ROUTe:SCAN:FUNC? <channel> ROUTe:SCAN:TIMER? ROUTe:SCAN:TIMER <value> ROUTe:SCAN:COUNT? ROUTe:SCAN:COUNT <value> ROUTe:SCAN:STATe? ROUTe:SCAN:SCAN ROUTe:SCAN:STEP...
  • Page 120 STATe {OFF|ON} STATe? CALCulate: PERCent:TARGet {<value>|MINimum|MAXimum} PERCent:TARGet? [MINimum|MAXimum] CALCulate: AVERage:MINimum? AVERage:MAXimum? AVERage:AVERage? AVERage:COUNt? CALCulate: NULL:OFFSet {<value>|MINimum|MAXimum} NULL:OFFSet? [MINimum|MAXimum] CALCulate: LIMit:LOWer {<value>|MINimum|MAXimum} LIMit:LOWer? [MINimum|MAXimum] LIMit:UPPer {<value>|MINimum|MAXimum} LIMit:UPPer? [MINimum|MAXimum] CALCulate: MXB:MMFactor {<value>|MINimum|MAXimum} MXB:MMFactor? [MINimum|MAXimum] MXB:MBFactor {<value>|MINimum|MAXimum} MXB:MBFactor? [MINimum|MAXimum] CALCulate: DB:REFerence {<value>|MINimum|MAXimum} DB:REFerence? [MINimum|MAXimum] CALCulate: DBM:REFerence {<value>|MINimum|MAXimum} DBM:REFerence? [MINimum|MAXimum]...
  • Page 121 source and different trigger settings for a specific measurement. Refer to Figure 4-8 for triggering system flow chart. Triggering from a remote interface is a multi-step sequence. You must first configure the mulitmeter by choosing the desired function, range and resolution.
  • Page 122 DISPlay? DISPlay: TEXT <quoted string> TEXT? TEXT:CLEar SYSTem: BEEPer BEEPer:STATe {OFF|ON} BEEPer:STATe? SYSTem:ERRor? SYSTem:VERSion? DATA:POINts? SYSTEM:IDNSTR “MANUFACTURER,PRODUCT” *RST *IDN? STATUS REPORTING Commands SYSTem:ERRor? STATus: QUEStionable:ENABle <enable value> QUEStionable:ENABle? QUEStionable:EVENt? STATus:PRESet *CLS *ESE <enable value> *ESE? *ESR? *OPC *OPC? *PSC {0|1} *PSC? *SRE <enable value>...
  • Page 123 Other Interface Commands SYSTem:LOCal SYSTem:REMote IEEE-488.2 COMMON Commands *CLS *ESE <enable value> *ESE? *ESR? *IDN? *OPC *OPC? *PSC {0|1} *PSC? *RST *SRE <enable value> *SRE? *STB? *TRG...

  • Page 124: Error Messages

    When you read all errors from the queue, the ERROR annunciator turns off. M352XA beeps once each time an error occurs. Should more than 20 errors have existed, the last error stored in the queue (the most recent error) is replaced with -350, “Too many errors”.
  • Page 125 Not enough parameters were received for the command.  -113 Undefined header An invalid command was received.  -120 Numeric data error  -121 Invalid character in number An invalid character was found in the number specified for a parameter value. ...
  • Page 126 A FETCh? Command was received but the memory was empty.  -230 Data corrupted or staled  -315 Configuration memory lost The memory corruption is detected or the memory is lost due to the firmware revision change.  -350 Queue overflow The error queue is full.
  • Page 127  521 Input buffer overflow  522 Output buffer overflow  531 Insufficient memory There is not enough memory to store the requested number of readings in internal memory using the INITiate command. The product of the sample count (SAMPle:COUNt) and the trigger count (TRIGger:COUNt) must not exceed 512 readings.
  • Page 128  620 Self-test failed; Rundown too noisy  621 Self-test failed; PGA x0.4 out of range  622 Self-test failed; PGA x4 out of range  623 Self-test failed; PGA x40 out of range  624 Self-test failed; PGA x20 out of range ...
  • Page 129  641 Self-test failed; DC Current 10A sense failed  642 Self-test failed; Ohms 10uA source failed  643 Self-test failed; Ohms 100uA source failed  644 Self-test failed; Ohms 1mA source failed  645 Self-test failed; Internal 1nF failed ...
  • Page 130  800 Nonvolatile memory write failure  801 Volatile memory write failure  821 Controller and measurement board model numbers do not match  822 Controller and measurement board serial numbers do not match  990 Channel slot number out of range ...
  • Page 131  1206 Front-End MCU Receive Data Check Id Err  1207 Front-End MCU Receive Data CheckSum Err  1208 Front-End MCU Receive Data Over Size  1209 Front-End MCU Receive Data Timeout  1210 Abort Init Err  1211 Single Init Err ...
  • Page 132  1256 Command not allowed in local  1257 Front-End RTC sync  1258 Front-End occurred reset  1300 Firmware update success...

  • Page 133: Appendix

    Appendix This appendix contains the performance specifications of the M352XA series. It covers the AC, DC, Resistance, Temperature, and Frequency/Period characteristics under a variety of conditions. It also contains the general characteristics and accuracy calculations for your convenience. A lot of efforts are made to make sure these specifications serve your needs for production, engineering and/or research purposes.
  • Page 134 SENSe is the root keyword of the command, VOLTage and FREQuency are second-level keywords, and DC and VOLTage are third-level keywords. A colon ( : ) separates a command keyword from a lower-level keyword. Command Format Used in This Manual The format used to show commands in this manual is shown below: VOLTage:DC:RANGe {<range>|MINimum|MAXimum} The command syntax shows most commands (and some parameters) as a mixture of...
  • Page 135 You can query the sample count by executing: "SAMP:COUN?" You can also query the minimum or maximum count allowed as follows: "SAMP:COUN? MIN" "SAMP:COUN? MAX" Note: If you send two query commands without reading the response from the first, ※ and then attempt to read the second response, you may receive some data from the first response followed by the complete second response.

  • Page 136: Output Data Formats

    VOLTage:DC:RANGe {<range>|MINimum|MAXimum} Discrete Parameters Discrete parameters are used to program settings that have a limited number of values (like BUS, IMMediate, EXTernal). They have a short form and a long form just like command keywords. You can mix upper- and lower-case letters. Query responses will always return the short form in all upper-case letters.

  • Page 137: The Measure? Command

    S Negative sign or positive sign D Numeric digits E Exponent <nl> newline character <cr> carriage return character A.3 The MEASure? Command MEASure:VOLTage:DC? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} Preset and make a dc voltage measurement with the specified range and resolution. The reading is sent to the output buffer.

  • Page 138: The Configure Command

    “0”. MEASure:PERiod? {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} Preset and make a period measurement with the specified range and resolution. The reading is sent to the output buffer. For period measurements, the meter uses only one “range” for all inputs between 0.33 seconds and 3.3 s ec.
  • Page 139 CONFigure:CURRent:AC {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} Preset and configure the multimeter for AC current measurements with the specified range and resolution. This command does not initiate the measurement. For ACI measurements, the default is 5½ digits. Therefore the resolution parameter only affects the front panel display. CONFigure:RESistance {<range>|MIN|MAX|DEF},{<resolution>|MIN|MAX|DEF} Preset and configure the multimeter for 2-wire Ω...

  • Page 140: The Measurement Configuration Command

    CONFigure? Query a recent condition of function, and return a quoted string. A.5 The Measurement Configuration Command [SENSe:]FUNCtion “<function>” Select a measurement function and enclose it in quotes in the command string (FUNC “VOLT:DC”). Use one of the following strings. VOLTage:DC VOLTage:AC VOLTage:DC:RATio...
  • Page 141 Select units for temperature measurement. Cel means Celsius, Far means Fahrenheit, and K means Kelvin. [SENSe:]UNIT? Query units for temperature measurement. [SENSe:]TCOuple:TYPE {E|J|K|N|R|S|T} Select thermocouple sensor type. [SENSe:]TCOuple:TYPE? Query thermocouple sensor type. [SENSe:]TCOuple:RJUNction:RSELect {REAL|SIMulated } Select a reference junction type, real or simulated. [SENSe:]TCOuple:RJUNction:RSELect? Query the reference junction type, real or simulated.
  • Page 142 [SENSe:]TEMPerature:RTD:BETA {<value>|MINimum|MAXimum} Set the beta constant for the user type. [SENSe:]TEMPerature:RTD:BETA? [MINimum|MAXimum] Query the beta constant for the user type. [SENSe:]TEMPerature:RTD:DELTa {<value>|MINimum|MAXimum} Set the delta constant for the user type. [SENSe:]TEMPerature:RTD:DELTa? [MINimum|MAXimum] Query the delta constant for the user type. [SENSe:]TEMPerature:SPRTD:RZERo {<value>|MINimum|MAXimum} Set the sensor R value at 0 degree Celsius.
  • Page 143 [SENSe:]TEMPerature:SPRTD:CX {<value>|MINimum|MAXimum} Set the C coefficient. [SENSe:]TEMPerature:SPRTD:CX? [MINimum|MAXimum] Query the C coefficient. [SENSe:]TEMPerature:SPRTD:DX {<value>|MINimum|MAXimum} Set the D coefficient. [SENSe:]TEMPerature:SPRTD:DX? [MINimum|MAXimum] Query the D coefficient. [SENSe:]TEMPerature:TRANsducer FRTD Set the RTD Measurement to 4-Wire. [SENSe:]TEMPerature:TRANsducer RTD Set the RTD Measurement to 2-Wire. [SENSe:]<function>:NPLCycles {0.02|0.
  • Page 144 [SENSe:]DETector:BANDwidth? [MINimum|MAXimum] Query the ac filter and return the bandwidth. [SENSe:]ZERO:AUTO {OFF|ONCE|ON} Disable or enable the auto zero mode. The OFF and ONCE have a similar effect. OFF mode does not issue a new offset measurement until the multimeter goes to the “WAIT-FOR-TRIGGER” state. Parameter ONCE issues an immediate offset measurement.

  • Page 145: The Math Operation Command

    display is 1 (means the 10-channel scanner card was inserted.). The state display is 2 (means the 20-channel scanner card was inserted.). The state display is 3 (means the thermocouple scanner card was inserted.). ROUTe:SCAN:FUNCtion <channel>,{<function>|“VOLT:DC”|“VOLT:AC”| “FREQuency”|“RESistance”|“FRESistance”|“NONE”} Set scanner card’s measurement functions which might be for the VAC, VDC, Frequency, 2-Wire Resistance, 4-Wire Resistance or disabling the channel.
  • Page 146 CALCulate:STATe {OFF|ON} Disable or enable the selected math function. CALCulate:STATe? Query the state of the math function. Returns “0”(OFF) or “1”(ON). CALCulate:PERCent:TARGet {<value>|MINimum|MAXimum} Set the target value for percent math function. The multimeter clears the value when Min/Max is turned on, when the power has been off or a remote interface reset. CALCulate:PERCent:TARGet? [MINimum|MAXimum] Query the target value for percent math function.
  • Page 147 CALCulate:LIMit:LOWer? Query the lower limit for the limit testing. CALCulate:LIMit:UPPer {<value>|MINimum|MAXimum} Set the upper limit for limit testing. You can set the value to any number from 0 to 120% of the ± highest range, for the present function. CALCulate:LIMit:UPPer? Query the upper limit for the limit testing.

  • Page 148: The Triggering Commands

    it allows you to determine an average of the readings without storing the individual values. An error will be generated if you attempt to transfer readings to the output buffer using the FETCh? command. DATA:FEED? Query the reading memory state. Return “CALC” or “”. A.7 The Triggering Commands INITiate Change the state of the triggering system from the “idle”...

  • Page 149: The System-Related Commands

    50,000 readings per trigger. SAMPle:COUNt ? [MINimum|MAXimum] Query the sample count. TRIGger:COUNt {<value>|MINimum|MAXimum|INFinite} Specify the number of triggers the multimeter will accept before returning to the “idle” state. Select from 1 to 50,000 triggers. The INFinite parameter instructs the multimeter to take triggers continuously.
  • Page 150 SYSTem:BEEPer:STATe {OFF|ON} Disable or enable the beeper. SYSTem:BEEPer:STATe? Query the beeper mode. Returns “0” (OFF) or “1” (ON). SYSTem:ERRor? Query the multimeter’s error queue. Up to 20 errors can be stored in the queue. Errors are retrieved in first-in-first-out (FIFO) order. Each error string may contain up to 80 characters. SYSTem:VERSion? Query the present SCPI version.

  • Page 151: The Scpi Status Pattern

    A.9 The SCPI Status Pattern Status registers are provided in the same way by all SCPI equipment. And there are three register groups with various equipment conditions recorded by the status system. They are the Status Byte Register, the Standard Event Register and the Questionable Data Register.
  • Page 152 About the Status Byte The conditions from other status registers will be reported by the status byte summary register. The query data, waiting in the multimeter’s output buffer, is reported immediatedly through the “message available” in bit 4. Besides, bits are not latched in the summary registers.
  • Page 153 On the other hand, there are some conditions that you have to note. The following conditions will clear the summary register. You execute a *CLS (clear status) command.  To query the standard event and questionable data registers will clear only the ...
  • Page 154 using the *STB? command. Moreover, to use this command doesn’t clear the status byte summary register. Procedures of Interrupting the Bus Controller by Using SRQ Send a bus device clear message.  Clear the event register by using the *CLS command. ...
  • Page 155 detected, command syntax errors, command execution errors, self-test (calibration errors), query errors or the moment of executing an *OPC command. Then through the enable register, all conditions will be reported in the standard event summary bit. At the moment, you have to write a decimal value by using the *ESE command to set the enable register mask.
  • Page 156 About the Questionable Data Register The questionable data register reports the quality of the DMM’s measurement results, as well overload conditions and high/low limit test results. Through the enable register, all of the conditions can be reported in the questionable data summary bit. At the moment, you have to write a decimal value by using the STATus:QUESTionable:ENABle command to set the enable register mask.

  • Page 157: Status Reporting Commands

    A.10 Status Reporting Commands SYSTem:ERRor? Query the multimeter’s error queue. Up to 20 errors can be stored in the queue. Errors are retrieved in first-in-first out (FIFO) order. Each error string may contain up to 80 characters. STATus:QUEStionable:ENABle <enable value> Enable bits in the Questionable Data enable register.

  • Page 158: Scpi Compliance Information

    *OPC? Returns “1” to the output buffer after the command is executed. *PSC {0|1} Power-on status clear. Clear the Status Byte and Standard Event register enable masks when power is turned on (*PSC 1). When *PSC 0 is in effect, the Status Byte and Standard Event register enable masks are not cleared when power is turned on.
  • Page 159 COUNt {<value>|MINimum|MAXimum} COUNt? [MINimum|MAXimum] [SENSe:] FUNCtion "CONTinuity" FUNCtion "DIODe" FREQuency:VOLTage:RANGe {<range>|MINimum|MAXimum} FREQuency:VOLTage:RANGe? [MINimum|MAXimum] FREQuency:VOLTage:RANGe:AUTO {OFF|ON} FREQuency:VOLTage:RANGe:AUTO? PERiod:VOLTage:RANGe {<range>|MINimum|MAXimum} PERiod:VOLTage:RANGe? [MINimum|MAXimum] PERiod:VOLTage:RANGe:AUTO {OFF|ON} PERiod:VOLTage:RANGe:AUTO? ZERO:AUTO? CALCulate: PERCent:TARGet {<value>|MINimum|MAXimum} PERCent:TARGet? [MINimum|MAXimum] AVERage:MINimum? AVERage:MAXimum? AVERage:AVERage? AVERage:COUNt? NULL:OFFSet {<value>|MINimum|MAXimum} NULL:OFFSet? [MINimum|MAXimum] LIMit:LOWer {<value>|MINimum|MAXimum} LIMit:LOWer? [MINimum|MAXimum] LIMit:UPPer {<value>|MINimum|MAXimum} LIMit:UPPer? [MINimum|MAXimum] MXB:MMFactor {<value>|MINimum|MAXimum}...

  • Page 160: Ieee-488 Compliance Information

    INPut: IMPedance:AUTO {OFF|ON} IMPedance:AUTO? A.12 IEEE-488 Compliance Information IEEE-488.2 Common Commands *CLS *ESE <enable value> *ESE? *ESR? *IDN? *OPC *OPC? *PSC {0|1} *PSC? *RST *SRE <enable value> *SRE? *STB? *TRG Dedicated Hardware Lines Addressed Commands Attention Interface Clear Remote Enable Service Request Interrupt Device Clear End or Identify Message Terminator...
  • Page 161 Go to Local Local Lock-Out Selected Device Clear Serial Poll Disable Serial Poll Enable Using Device Clear to Halt Measurements Device clear is an IEEE-488 low-level bus message which can be used to halt measurements in progress. Different programming languages and IEEE-488 interface cards provide access to this capability through their own unique commands.

  • Page 162: Declaration Of Conformity

    Manufacturer Name: Picotest Corp. Manufacturer Address: 5F-1, 286-9, Hsin-Ya Rd, 80673, Kaohsiung, Taiwan Declaration of Product Product Name: 6 1/2 Digit Digital Multimeter Model Number: M352XA Series Product Accessories: This declaration applies to all accessories of the above product(s). EMC: EN61326-1:2013, EN61326-2-1:2013...