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CALIBRATION PROCEDURE
NI PXIe-4142
Four Channel Source-Measure Unit (SMU)
This document contains the verification and adjustment procedures for the NI PXIe-4142
(NI 4142). Refer to
Contents
Verification................................................................................................................................2
Required Software.............................................................................................................2
Related Documentation.....................................................................................................2
Password........................................................................................................................... 2
Calibration Interval........................................................................................................... 2
Test Equipment..................................................................................................................2
Test Conditions..................................................................................................................3
Calibration Overview........................................................................................................ 4
Self-Calibrating................................................................................................................. 5
Voltage Output and Measurement.....................................................................................5
Current Output and Measurement.....................................................................................7
Remote Sense.................................................................................................................... 9
Adjustment.............................................................................................................................. 12
Adjusted Specifications...................................................................................................12
Self-Calibrating............................................................................................................... 12
Initiating the Adjustment Session................................................................................... 13
Connecting and Configuring Equipment for Voltage Adjustment..................................13
Adjusting Voltage Measurement..................................................................................... 13
Connecting and Configuring Equipment for Current Adjustment..................................14
Adjusting Current Measurement..................................................................................... 15
Connecting and Configuring Equipment to Adjust Residual Offset Voltage..................16
Adjusting Residual Voltage Offset..................................................................................16
Adjusting Residual Current Offset..................................................................................16
Closing the Adjustment Session..................................................................................... 16
Alternative to Adjustment Procedures............................................................................ 17
Reverification..........................................................................................................................17
Worldwide Support and Services............................................................................................ 17
ni.com/calibration
for more information about calibration solutions.
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Table of Contents
Related Manuals for National Instruments NI PXIe-4142
Summary of Contents for National Instruments NI PXIe-4142
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Page 1: Table Of Contents
CALIBRATION PROCEDURE NI PXIe-4142 Four Channel Source-Measure Unit (SMU) This document contains the verification and adjustment procedures for the NI PXIe-4142 (NI 4142). Refer to ni.com/calibration for more information about calibration solutions. Contents Verification..........................2 Required Software......................2 Related Documentation.....................2 Password........................... 2 Calibration Interval...................... -
Page 2: Verification
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 using the minimum requirements listed in the table. 2 | ni.com | NI PXIe-4142 Calibration Procedure... -
Page 3: Test Conditions
To take measurements in the 10 µA range with the Agilent 3458A, you must send your device to the Agilent Primary Standards Lab for a special calibration to verify the 10 µA, 1 µA, and 100 nA ranges. NI PXIe-4142 Calibration Procedure | © National Instruments | 3... -
Page 4: Calibration Overview
Keep relative humidity between 10% and 70%, noncondensing. • Recalculate the test limits if they differ from the newest device specifications. Test limits in this document are based on the October 2013 edition of the NI PXIe-4142 Specifications. • When making measurements, set the niDCPower Aperture Time property or NIDCPOWER_ATTR_APERTURE_TIME attribute to 2 power-line cycles (PLCs) on the device. -
Page 5: Self-Calibrating
Call the self-calibration function. Close the NI-DCPower session. Voltage Output and Measurement Connecting and Configuring Equipment for Voltage Verification Make the necessary connections for this procedure, as shown in the following figure. NI PXIe-4142 Calibration Procedure | © National Instruments | 5... - Page 6 Set the first specified level range, limit range, and limit on the NI 4142. Set the level on the NI 4142 to the first specified test point. Take a voltage measurement using the DMM, and take a voltage measurement using the NI 4142. 6 | ni.com | NI PXIe-4142 Calibration Procedure...
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Page 7: Current Output And Measurement
Compare a set of currents measured by the external DMM to both a set of current test points requested by the NI 4142 and to the measured currents reported by the NI 4142. Refer to the following table as you complete the following steps. NI PXIe-4142 Calibration Procedure | © National Instruments | 7... - Page 8 Set the level on the NI 4142 to the first specified test point. Take a current measurement using the DMM, and take a current measurement using the NI 4142. Record the values from the previous step. 8 | ni.com | NI PXIe-4142 Calibration Procedure...
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Page 9: Remote Sense
LO Lead Drop Measurements Mode – Set the niDCPower Sense property or NIDCPOWER_ATTR_SENSE attribute to Remote. Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Voltage for the NI 4142. NI PXIe-4142 Calibration Procedure | © National Instruments | 9... - Page 10 If more than one level range is specified, repeat the previous steps using the values specified in each level range. Connecting and Configuring Equipment to Verify Current Remote Sense Accuracy Refer to the following figure to make the necessary connections to verify current remote sense accuracy. 10 | ni.com | NI PXIe-4142 Calibration Procedure...
- Page 11 Calculate the voltage across Load1 using the following formula: DMM Measured Current * Load1. Record as Lead Drop 1. Calculate the voltage across Load2 using the following formula: DMM Measured Current * Load2. Record as Lead Drop 2. NI PXIe-4142 Calibration Procedure | © National Instruments | 11...
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Page 12: Adjustment
Disconnect or disable all connections to the device. Ensure the device had 30 minutes to warm up with the PXI chassis fans set to HIGH. Initialize an NI-DCPower session. Call the self-calibration function. Close the NI-DCPower session. 12 | ni.com | NI PXIe-4142 Calibration Procedure... -
Page 13: Initiating The Adjustment Session
The architecture of the NI 4142 ensures that if measurement is accurate, then output is as well, and vice versa. Refer to the following table as you complete the following steps. NI PXIe-4142 Calibration Procedure | © National Instruments | 13... -
Page 14: Connecting And Configuring Equipment For Current Adjustment
Figure 7. Current Verification or Adjustment Connection Diagram NI-DCPower Device Sense HI Current Mode Sense LO – Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Current for the NI 4142. 14 | ni.com | NI PXIe-4142 Calibration Procedure... -
Page 15: Adjusting Current Measurement
Update the measurement calibration constants by configuring and calling the VI niDCPower Cal Adjust Current Measurement or niDCPower_CalAdjustCurrentMeasurement function. Input the DMM measurements as the measured outputs. NI PXIe-4142 Calibration Procedure | © National Instruments | 15... -
Page 16: Connecting And Configuring Equipment To Adjust Residual Offset Voltage
Closing the Adjustment Session 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. 16 | ni.com | NI PXIe-4142 Calibration Procedure... -
Page 17: Alternative To Adjustment Procedures
Verification on page 2 Worldwide Support and Services The National Instruments website is your complete resource for technical support. At ni.com/ support, you have access to everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers. - Page 18 Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products/technology, refer to the appropriate location: Help»Patents in your software, the file on your media, or the National Instruments Patent Notice at .
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