NI PXIe-4140 Calibration Procedure
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NI PXIe-4140 Calibration Procedure

4-channel smu
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CALIBRATION PROCEDURE
NI PXIe-4140
4-CHANNEL SMU
This document contains the verification and adjustment procedures for the NI 4140. Refer to
ni.com/calibration
for more information about calibration solutions.
Please review and become familiar with the entire procedure before beginning the calibration
process.
Contents
Verification................................................................................................................................2
Required Software.............................................................................................................2
Related Documentation.....................................................................................................2
Password........................................................................................................................... 2
Calibration Interval........................................................................................................... 2
Test Equipment..................................................................................................................2
Test Conditions..................................................................................................................3
Calibration Overview........................................................................................................ 5
Self-Calibrating................................................................................................................. 5
Voltage Output and Measurement.....................................................................................6
Current Output and Measurement.....................................................................................7
Remote Sense.................................................................................................................. 10
Adjustment.............................................................................................................................. 13
Adjusted Specifications...................................................................................................13
Self-Calibrating............................................................................................................... 13
Initiating the Adjustment Session................................................................................... 14
Adjusting Voltage Measurement..................................................................................... 14
Adjusting Current Measurement..................................................................................... 16
Adjusting Residual Voltage Offset..................................................................................17
Adjusting Residual Current Offset..................................................................................17
Closing the Adjustment Session..................................................................................... 17
Alternative to Adjustment Procedures............................................................................ 18
Reverification..........................................................................................................................18
Setting the Calibration Due Date............................................................................................ 18
Revision History..................................................................................................................... 19
NI Services.............................................................................................................................. 19

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Summary of Contents for NI PXIe-4140

  • Page 1: Table Of Contents

    CALIBRATION PROCEDURE NI PXIe-4140 4-CHANNEL SMU This document contains the verification and adjustment procedures for the NI 4140. Refer to ni.com/calibration for more information about calibration solutions. Please review and become familiar with the entire procedure before beginning the calibration process.

  • Page 2: Verification

    18 Repeat the Verification section to determine the as-left status of the device. Required Software Calibrating the NI 4140 requires you to install the following software on the calibration system: • NI-DCPower. The NI 4140 was first supported in NI-DCPower 1.7.5.

  • Page 3: Test Conditions

    PTF65100K00BYEK sense Test Conditions The following setup and environmental conditions are required to ensure the NI 4140 meets published specifications: • Keep cabling as short as possible. Long cables act as antennas, picking up extra noise that can affect measurements.
  • Page 4 T ±5 °C. is the internal device temperature recorded by the NI 4140 at the completion of the last self- calibration. Call the niDCPower Get Self Cal Last Temp VI to query T from the NI 4140.

  • Page 5: Calibration Overview

    Temperature conditions specific to adjustment procedures: • Maintain an ambient temperature of 23 °C ±1 °C. The NI 4140 internal temperature is greater than the ambient temperature. Calibration Overview Calibration includes the steps shown in the following figure. Figure 1. Calibration Overview...

  • Page 6: Voltage Output And Measurement

    Compare a set of voltages measured by the external DMM to both a set of voltage test points requested by the NI 4140 and to the measured voltages reported by the NI 4140. Refer to the following table as you complete the following steps.

  • Page 7: Current Output And Measurement

    If more than one test point per level range is specified, repeat the previous steps for each test point, from setting the level to the test point on the NI 4140 up to this step. 10. If more than one level range is specified, repeat the previous steps using the values specified in each level range.
  • Page 8 Compare a set of currents measured by the external DMM to both a set of current test points requested by the NI 4140 and to the measured currents reported by the NI 4140. Refer to the following table as you complete the following steps.
  • Page 9 100 mA 100 mA Set the first specified level range, limit range, and limit on the NI 4140. Set the level on the NI 4140 to the first specified test point. Take a current measurement using the DMM, and take a current measurement using the NI 4140.

  • Page 10: Remote Sense

    If more than one test point per level range is specified, repeat the previous steps for each test point, from setting the level to the test point on the NI 4140 up to this step. For zero current test points, disconnect all external equipment from the I/O connector on the NI 4140 and take a current measurement solely with the NI 4140, in order to ensure that the output current is zero.
  • Page 11 If more than one test point per level range is specified, repeat the previous steps for each test point, from setting the level to the test point on the NI 4140 up to this step. If more than one level range is specified, repeat the previous steps using the values specified in each level range.
  • Page 12 Verifying Current Remote Sense Accuracy Use the NI 4140 in constant current mode with a test circuit to simulate the voltage drop between the device and a load. Measure all of the specified resistors using the DMM before you connect equipment. Record the values.

  • Page 13: Adjustment

    If more than one test point per level range is specified, repeat the previous steps for each test point, from setting the level to the test point on the NI 4140 up to this step. If more than one level range is specified, repeat the previous steps using the values specified in each level range.

  • Page 14: Initiating The Adjustment Session

    DC Voltage for the NI 4140. Adjusting Voltage Measurement Compare a set of measured voltages reported by the NI 4140 to the voltages measured by a DMM. You do not need to separately verify both measurement and output. The architecture of the NI 4140 ensures that if measurement is accurate, then output is as well, and vice versa.

  • Page 15: Connecting And Configuring Equipment For Current Adjustment

    If more than one test point per level range is specified, repeat the previous steps for each test point, from setting the level to the test point on the NI 4140 up to this step. If more than one level range is specified, repeat the previous steps using the values specified in each level range.

  • Page 16: Adjusting Current Measurement

    If more than one test point per level range is specified, repeat the previous steps for each test point, from setting the level to the test point on the NI 4140 up to this step. For zero current test points, disconnect all external equipment from the I/O connector on the NI 4140 and take a current measurement solely with the NI 4140, in order to ensure that the output current is zero.

  • Page 17: Connecting And Configuring Equipment To Adjust Residual Offset Voltage

    Close the session and commit the new constants to hardware by calling the niDCPower Close External Calibration VI or niDCPower_CloseExtCal function and specifying Commit as the calibration close action. NI PXIe-4140 Calibration Procedure | © National Instruments Corporation | 17...

  • Page 18: Alternative To Adjustment Procedures

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

  • Page 19: Revision History

    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. NI PXIe-4140 Calibration Procedure | © National Instruments Corporation | 19...
  • Page 20 National Instruments Patent Notice at ni.com/patents . You can find 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 ni.com/legal/export-compliance for the NI global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data.

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