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CALIBRATION PROCEDURE
NI PXIe-4137
Single-Channel Precision System Source Measure Unit (SMU)
This document contains the verification and adjustment procedures for the NI PXIe-4137
(PXIe-4137). Refer to
Contents
Required Software.....................................................................................................................2
Related Documentation.............................................................................................................2
Password................................................................................................................................... 2
Calibration Interval................................................................................................................... 2
Test Equipment..........................................................................................................................3
Test Conditions..........................................................................................................................3
Safety Guidelines for System Operation...................................................................................4
As-Found and As-Left Limits................................................................................................... 5
Calibration Overview................................................................................................................ 5
Verification................................................................................................................................6
Self-Calibrating the PXIe-4137........................................................................................ 6
Testing the Safety Interlock.............................................................................................. 7
Connecting and Configuring Equipment for Voltage Verification....................................7
Verifying Voltage Measurement and Output.....................................................................8
Verifying Remote Sense Voltage Offset............................................................................9
Verifying Voltage Remote Sense.......................................................................................9
Verifying Current Offset..................................................................................................11
Verifying Load Regulation..............................................................................................12
Verifying 1 μA and 10 μA Current Measurement and Output........................................13
Verifying 100 μA to 100 mA Current Measurement and Output....................................15
Verifying 1 A and 3 A Current Measurement and Output.............................................. 17
Adjustment.............................................................................................................................. 18
Adjusted Specifications...................................................................................................19
Initiating the Adjustment Session................................................................................... 19
Voltage and Current Output............................................................................................ 19
Residual Offset Voltage...................................................................................................23
Closing the Adjustment Session..................................................................................... 24
Alternative to Performing Adjustment Procedures......................................................... 24
Reverification..........................................................................................................................24
Worldwide Support and Services............................................................................................ 24
ni.com/calibration
for more information about calibration solutions.
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Related Manuals for National Instruments NI PXIe-4137
Summary of Contents for National Instruments NI PXIe-4137
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Page 1: Table Of Contents
CALIBRATION PROCEDURE NI PXIe-4137 Single-Channel Precision System Source Measure Unit (SMU) This document contains the verification and adjustment procedures for the NI PXIe-4137 (PXIe-4137). Refer to ni.com/calibration for more information about calibration solutions. Contents Required Software........................2 Related Documentation......................2 Password........................... 2 Calibration Interval........................ -
Page 2: Required Software
NI PXIe-4137 Specifications • NI-DCPower Readme • LabVIEW Help Visit ni.com/manuals for the latest versions of these documents. Password The default password for password-protected operations is Calibration Interval Recommended calibration interval 1 year 2 | ni.com | NI PXIe-4137 Calibration Procedure... -
Page 3: Test Equipment
For more information about cooling, refer to the Maintain Forced-Air Cooling Note to Users document available at ni.com/manuals. NI PXIe-4137 Calibration Procedure | © National Instruments | 3... -
Page 4: Safety Guidelines For System Operation
PXIe-4137 at the completion of the last self- calibration. Call the niDCPower Get Self Cal Last Temp VI to query T from the PXIe-4137. 4 | ni.com | NI PXIe-4137 Calibration Procedure... -
Page 5: As-Found And As-Left Limits
NI uses these limits to determine whether the device will meet the device specifications over its calibration interval. Calibration Overview Calibration includes the steps shown in the following figure: NI PXIe-4137 Calibration Procedure | © National Instruments | 5... -
Page 6: Verification
PXIe-4137 ensures that if measurement is accurate, then output is as well, and vice versa. Related Information Reverification on page 24 Repeat the Verification section to determine the as-left status of the PXIe-4137. Self-Calibrating the PXIe-4137 Complete the following steps to self-calibrate the PXIe-4137. 6 | ni.com | NI PXIe-4137 Calibration Procedure... -
Page 7: Testing The Safety Interlock
Make the necessary connections for this procedure, as shown in the following figure: Figure 2. Voltage Verification or Adjustment Connection Diagram NI-DCPower Device Sense HI Voltage Mode Sense LO – NI PXIe-4137 Calibration Procedure | © National Instruments | 7... -
Page 8: Verifying Voltage Measurement And Output
±1 °C. If after five minutes the stable temperature still exceeds T ±1 °C, call the self- calibration VI or function. Set the level on the PXIe-4137 to the first specified test point. 8 | ni.com | NI PXIe-4137 Calibration Procedure... -
Page 9: Verifying Remote Sense Voltage Offset
Verifying Voltage Remote Sense Use the PXIe-4137 in constant current mode with a test circuit to simulate the voltage drop between the device and a load. NI PXIe-4137 Calibration Procedure | © National Instruments | 9... - Page 10 Take a voltage measurement using the PXIe-4137. Record the voltage from the previous step as V1. Follow industry best practices for minimizing thermal electromotive force (EMF) when making the necessary connections for this procedure. 10 | ni.com | NI PXIe-4137 Calibration Procedure...
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Page 11: Verifying Current Offset
Complete this procedure only after successfully completing all previous verification procedures. Verify ranges in the order listed in the table. Follow industry best practices for minimizing thermal electromotive force (EMF) when making the necessary connections for this procedure. NI PXIe-4137 Calibration Procedure | © National Instruments | 11... -
Page 12: Verifying Load Regulation
Level Range Limit Range and Limit Test Point As-found/As-left Limit 10 mA 600 mV 10 mA 2 mV Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Current for the PXIe-4137. 12 | ni.com | NI PXIe-4137 Calibration Procedure... -
Page 13: Verifying 1 Μa And 10 Μa Current Measurement And Output
Refer to the following table as you complete the following steps. Complete this procedure only after successfully completing all previous verification procedures. Verify ranges in the order listed in the table. NI PXIe-4137 Calibration Procedure | © National Instruments | 13... - Page 14 Calculate the current through the shunt by completing the following steps. Take a voltage measurement across the shunt using the DMM. Divide the voltage measurement by the calibrated value of the shunt. Record the calculated value as DMM Measured Current. 14 | ni.com | NI PXIe-4137 Calibration Procedure...
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Page 15: Verifying 100 Μa To 100 Ma Current Measurement And Output
Refer to the following table as you complete the following steps. Complete this procedure only after successfully completing all previous verification procedures. Verify ranges in the order listed in the table. NI PXIe-4137 Calibration Procedure | © National Instruments | 15... - Page 16 ±1 °C. If after five minutes the stable temperature still exceeds T ±1 °C, call the self- calibration VI or function. Set the level on the PXIe-4137 to the first specified test point. 16 | ni.com | NI PXIe-4137 Calibration Procedure...
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Page 17: Verifying 1 A And 3 A Current Measurement And Output
Make the necessary connections for this procedure, as shown in the following figure: As-left measurement test limits for the 1 A and 3 A level range are relative to the external calibration source. NI PXIe-4137 Calibration Procedure | © National Instruments | 17... -
Page 18: Adjustment
10. If more than one level range is specified, repeat the previous steps using the values specified in each level range. Adjustment This section describes the steps needed to adjust the PXIe-4137 to meet published specifications. 18 | ni.com | NI PXIe-4137 Calibration Procedure... -
Page 19: Adjusted Specifications
Do not self-calibrate the device except as specified in a procedure. Voltage and Current Output Connecting and Configuring Equipment for Voltage Adjustment Make the necessary connections for this procedure, as shown in the following figure: NI PXIe-4137 Calibration Procedure | © National Instruments | 19... - Page 20 Update the output calibration constants by configuring and calling the niDCPower Cal Adjust Voltage Level VI or niDCPower_CalAdjustVoltageLevel function. Input the DMM measurements as the measured outputs. Input the test points as the requested outputs. Input the specified level range as the range. 20 | ni.com | NI PXIe-4137 Calibration Procedure...
- Page 21 Adjusting the 100 µA and 1 mA level ranges automatically adjusts the following ranges: 1 μA, 10 µA, 10 mA, and 100 mA. The PXIe-4137 requires that you use ±100 µA test points in the 1 mA level range. NI PXIe-4137 Calibration Procedure | © National Instruments | 21...
- Page 22 Mode Sense LO – Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Current for the PXIe-4137. Set the first specified level range, limit range, and limit on the PXIe-4137. 22 | ni.com | NI PXIe-4137 Calibration Procedure...
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Page 23: Residual Offset Voltage
Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION attribute to DC Voltage for the PXIe-4137. Follow industry best practices for minimizing thermal electromotive force (EMF) when making the necessary connections for this procedure. NI PXIe-4137 Calibration Procedure | © National Instruments | 23... -
Page 24: Closing The Adjustment Session
NI Application Engineers. Visit ni.com/services for NI Factory Installation Services, repairs, extended warranty, and other services. 24 | ni.com | NI PXIe-4137 Calibration Procedure... - Page 25 United States, visit the Worldwide Offices section of ni.com/ niglobal to access the branch office websites, which provide up-to-date contact information, support phone numbers, email addresses, and current events. NI PXIe-4137 Calibration Procedure | © National Instruments | 25...
- Page 26 CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S. Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015. © 2015—2016 National Instruments. All rights reserved. 374881B-01 Aug16...