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NI PXIe-4135 Calibration Procedure

Pxie, ±200 v, ±1 a (dc)/±3 a (pulsed), 10 fa precision system pxi source measure unit
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CALIBRATION PROCEDURE
PXIe-4135
PXIe, ±200 V, ±1 A (DC)/±3 A (Pulsed), 10 fA Precision System PXI
Source Measure Unit
This document contains the verification and adjustment procedures for the PXIe-4135. Refer
to
ni.com/calibration
Note
In this document, the PXIe-4135 (40W) and PXIe-4135 (20W) are referred to
inclusively as the PXIe-4135. The information in this document applies to all
versions of the PXIe-4135 unless otherwise specified. To determine which version of
the module you have, locate the device name in one of the following places:
•
In MAX-The PXIe-4135 (40W) shows NI PXIe-4135 (40W), and the
PXIe-4135 (20W) shows as NI PXIe-4135.
•
Device front panel-The PXIe-4135 (40W) shows PXIe-4135 40W System
SMU, and the PXIe-4135 (20W) shows NI PXIe-4135 Precision System SMU
on the front panel.
Please review and become familiar with the entire procedure before beginning the calibration
process.
Contents
Required Software.....................................................................................................................2
Related Documentation.............................................................................................................2
Password................................................................................................................................... 3
Calibration Interval................................................................................................................... 3
Test Equipment..........................................................................................................................3
Test Conditions..........................................................................................................................6
Safety Guidelines for System Operation...................................................................................7
As-Found and As-Left Limits................................................................................................... 8
Calibration Overview................................................................................................................ 8
Verification................................................................................................................................9
Self-Calibrating the PXIe-4135...................................................................................... 10
Testing the Safety Interlock............................................................................................ 10
Verifying Voltage Measurement and Output................................................................... 11
Verifying Remote Sense Voltage Offset..........................................................................13
Verifying Voltage Remote Sense.....................................................................................13
Verifying Current Offset Null......................................................................................... 15
Verifying Current Offset................................................................................................. 16
Verifying Load Regulation..............................................................................................17
for more information about calibration solutions.

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Summary of Contents for NI PXIe-4135

  • Page 1: Table Of Contents

    CALIBRATION PROCEDURE PXIe-4135 PXIe, ±200 V, ±1 A (DC)/±3 A (Pulsed), 10 fA Precision System PXI Source Measure Unit This document contains the verification and adjustment procedures for the PXIe-4135. Refer ni.com/calibration for more information about calibration solutions. Note In this document, the PXIe-4135 (40W) and PXIe-4135 (20W) are referred to inclusively as the PXIe-4135.

  • Page 2: Required Software

    Reverification..........................32 Setting the Calibration Due Date.................... 32 Revision History........................32 NI Services..........................33 Required Software Calibrating the PXIe-4135 requires you to install the following software on the calibration system: • Supported driver software – For PXIe-4135 (40W), install NI-DCPower 20.5 or later –...

  • Page 3: Password

    Recommended calibration interval 1 year Test Equipment The following table lists the equipment NI recommends for the performance verification and adjustment procedures. If the recommended equipment is not available, select a substitute that meets the minimum required specifications listed in the table.
  • Page 4 10 nA and 1 µA — Triax to BNC Current Output and 3 Lug Triax Measurement Verification Triaxial (F) to Pomona 5299 10 nA and 1 µA — BNC (M) Current Output and Adapter Measurement Verification 4 | ni.com | PXIe-4135 Calibration Procedure...
  • Page 5 10 nA and 1 µA, 22 AWG, 100 µA to 100 mA, Silver Plated and 1 A and 3 A Copper Cables Current Accuracy, Voltage Adjustment Measurement Verification, Current Output and Measurement Adjustment PXIe-4135 Calibration Procedure | © National Instruments Corporation | 5...

  • Page 6: Test Conditions

    Accuracy, Current Measurement and Output Accuracy Test Conditions Follow the setup and environmental information below to ensure the PXIe-4135 meets the published specifications. • Ensure that the safety interlock terminal is open during verification procedures unless specifically required. Ensure proper operator safety procedures when using the PXIe-4135 with the interlock closed.

  • Page 7: Safety Guidelines For System Operation

    à ± 40 V CC, et la is the internal device temperature recorded by the PXIe-4135 at the completion of the last self- calibration. Call the niDCPower Get Self Cal Last Temp VI to query T from the PXIe-4135.

  • Page 8: As-Found And As-Left Limits

    The as-left limits are equal to the published NI specifications for the device, less guard bands for measurement uncertainty, temperature drift, and drift over time. NI uses these limits to determine whether the device will meet the device specifications over its calibration interval.

  • Page 9: Verification

    Adjustment Procedure Verification or Return Device Complete Initial setup—Install the PXIe-4135 and configure it in Measurement & Automation Explorer (MAX). Verification—Verify the existing operation of the PXIe-4135. This step confirms whether the PXIe-4135 is operating within the published specifications prior to adjustment.

  • Page 10: Self-Calibrating The Pxie-4135

    Complete the following steps to self-calibrate the PXIe-4135. Disconnect or disable all connections to the PXIe-4135. Allow the PXIe-4135 30 minutes to warm up with the PXI chassis fans set to HIGH. Initialize an NI-DCPower session. Call the self-calibration function.

  • Page 11: Verifying Voltage Measurement And Output

    Compare a set of voltages measured by a DMM to the voltage test points requested by the PXIe-4135. Verify level ranges in the specified order. Refer to the following table as you complete the following steps: PXIe-4135 Calibration Procedure | © National Instruments Corporation | 11...
  • Page 12 Voltage Measurement Test Limits = Test Point ± (|Test Point| * % of Voltage + Offset) Set the first specified level range, limit range, and limit on the PXIe-4135. Set the niDCPower Sense property or NIDCPOWER_ATTR_SENSE attribute to Local.

  • Page 13: Verifying Remote Sense Voltage Offset

    Repeat step 1 through step 6 for each level range. Verifying Voltage Remote Sense Use the PXIe-4135 in constant current mode with a test circuit to simulate the voltage drop between the device and a load. Refer to the following table as you complete the following steps: Table 4.
  • Page 14 Set the niDCPower Sense property or NIDCPOWER_ATTR_SENSE attribute to Remote. Set the first specified level range, limit range, and limit on the PXIe-4135. Set the level on the PXIe-4135 to the first specified test point and enable the output. Take a voltage measurement using the PXIe-4135.

  • Page 15: Verifying Current Offset Null

    LO Sense Verification Assembly CHS GND Verifying Current Offset Null Remove all connections from the PXIe-4135 and confirm that the current measured into an open circuit falls within the test limits. Complete this procedure only after successfully completing all previous verification procedures.

  • Page 16: Verifying Current Offset

    Verifying Current Offset Remove all connections from the PXIe-4135 and confirm the current measured by the PXIe-4135 at 0 V falls within the test limits. Refer to the following table as you complete the following steps. Complete this procedure only after succesfully completing all previous verification procedures.

  • Page 17: Verifying Load Regulation

    DC Current for the PXIe-4135. Set the niDCPower Sense property or NIDCPOWER_ATTR_SENSE attribute to Local. Set the first specified level range, limit range, and limit on the PXIe-4135. PXIe-4135 Calibration Procedure | © National Instruments Corporation | 17...
  • Page 18 13. Complete the following steps within five minutes or less to ensure the internal device temperature remains stable: Set the level on the PXIe-4135 to the value specified by I1 in the table above. Take a voltage measurement using the PXIe-4135 and record the value as V1.

  • Page 19: Verifying 10 Na Current Measurement And Output

    Verifying 10 nA Current Measurement and Output Compare a set of measured currents reported by the PXIe-4135 to the currents measured by a DMM. Complete this procedure only after successfully completing all previous verification procedures. Verify level ranges in the order listed in the table.

  • Page 20: Verifying 1 Μa Current Measurement And Output

    Shielded Combicon to Banana/Bare wire CHS GND Set the specified level range, limit range (part 2), and limit (part 2) on the PXIe-4135. 10. Take a current measurement using the PXIe-4135. 11. Record the value from the previous step. 12. Verify that the recorded PXIe-4135 value falls within the test limits.
  • Page 21 Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Voltage for the PXIe-4135. Set the first specified level range, limit range, and limit on the PXIe-4135. Measure the internal device temperature and perform self-calibration if necessary. After measuring the internal device temperature, wait for the internal device temperature to stabilize.

  • Page 22: Verifying 100 Μa To 100 Ma Current Measurement And Output

    Current Measurement Test Limits = DMM Measured Current ± (|DMM Measured Current| * % of Current + Offset ) Disconnect the DMM as shown in the following figure. Leave the PXIe-4135 output on. Figure 9. Current Connection Diagram, Part 2...
  • Page 23 Current Measurement Test Limits = Test Point ± (|Test Point| * % of Current + Offset ) Make the necessary connections for this procedure, as shown in the following figure: PXIe-4135 Calibration Procedure | © National Instruments Corporation | 23...

  • Page 24: Verifying 1 A And 3 A Current Measurement And Output

    Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Current for the PXIe-4135. Set the first specified level range, limit range, and limit on the PXIe-4135. Measure the internal device temperature and perform self-calibration if necessary. After measuring the internal device temperature, wait for the internal device temperature to stabilize.
  • Page 25 Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Current for the PXIe-4135. Set the first specified level range, limit range, and limit on the PXIe-4135. Measure the internal device temperature and perform self-calibration if necessary. After measuring the internal device temperature, wait for the internal device temperature to stabilize.

  • Page 26: Adjustment

    10. Repeat step 3 through step 9 for each level range. 11. Configure the PXIe-4135 output to disable. Adjustment This section describes the steps needed to adjust the PXIe-4135 to meet published specifications. Adjusted Specifications Adjustment corrects the following specifications for the device: •...

  • Page 27: Voltage And Current Output

    DC Voltage for the PXIe-4135. Adjusting Voltage Output and Measurement Compare a set of measured voltages reported by the PXIe-4135 to the voltages measured by a DMM. Refer to the following table as you complete the following steps: Table 13.
  • Page 28 Adjusting the 100 µA and 1 mA level ranges automatically adjusts the following ranges: 10 nA, 1 µA, 10 mA, and 100 mA. The PXIe-4135 requires that you use ±100 µA test points in the 1 mA level range. 28 | ni.com | PXIe-4135 Calibration Procedure...
  • Page 29 10. Configure the PXIe-4135 output to disable. Adjusting 1 A and 3 A Current Output and Measurement Compare a set of measured currents reported by the PXIe-4135 to the currents measured by a DMM. Complete this procedure only after successfully completing all previous adjustment procedures.

  • Page 30: Residual Offset Voltage

    Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Current for the PXIe-4135. Set the first specified level range, limit range, and limit on the PXIe-4135. Set the level on the PXIe-4135 to the first specified test point.

  • Page 31: Closing The Adjustment Session

    Note NI recommends following all adjustment procedures in order to update the calibration constants and renew the device calibration interval. Call either the niDCPower Initialize External Calibration VI or the niDCPower_InitExtCal function.

  • Page 32: Reverification

    Use either Measurement & Automation Explorer (MAX) or NI System Configuration API to set or clear a calibration due date for your device. NI suggests a minimum calibration due date of the date of external calibration plus the external calibration interval for the device.

  • Page 33: Ni Services

    NI product. Product registration facilitates technical support and ensures that you receive important information updates from NI. NI corporate headquarters is located at 11500 N Mopac Expwy, Austin, TX, 78759-3504, USA. PXIe-4135 Calibration Procedure | © National Instruments Corporation | 33...
  • Page 34 . You can find patents.txt ni.com/patents information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product. Refer to the Export Compliance Information at for the NI global trade compliance policy and how ni.com/legal/export-compliance...

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