National Instruments PXIe-4468, Calibration Procedure

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PXIe-4468 Calibration Procedure
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This document contains the verification and adjustment procedures for the
PXIe-4468 with either BNC or mini-XLR connectors. Use the procedures in this
document to automate calibration or to conduct manual calibration. Review
and become familiar with the entire procedure before beginning the
calibration process.
Contents
Terms and Definitions ............................................................................................... 3
Calibration Overview ................................................................................................. 4
Calibration Condition Guidelines ......................................................................... 5
Calibration Resources ............................................................................................... 5
Required Software ................................................................................................. 5
Recommended Documentation ........................................................................... 6
Test Equipment ..................................................................................................... 6
Warm Up the DUT ...................................................................................................... 8
Perform Self-Calibration ....................................................................................... 8
Perform Verification .................................................................................................. 9
AI Offset Accuracy Verification .............................................................................. 9
AI Gain Accuracy Verification .............................................................................. 12
AI Gain Flatness Verification ............................................................................... 14
IEPE Current Verification ..................................................................................... 17
AO Differential Offset Accuracy Verification ....................................................... 19
AO Differential Gain Accuracy Verification ......................................................... 22
AO Gain Flatness Verification .............................................................................. 26
AO Common-Mode Gain and Offset Verification ............................................... 29
Timebase Frequency Accuracy Verification ....................................................... 31
Perform Adjustment ................................................................................................ 34
AI/AO Gain and Offset Adjustment ..................................................................... 34
Timebase Adjustment ......................................................................................... 35
Perform Reverification ............................................................................................ 36
Update the Onboard Calibration Information ....................................................... 37
Revision History ....................................................................................................... 37
NI Services ............................................................................................................... 38