National Instruments SCXI -1122, Calibration Procedure, Page: 1 / 17

CALIBRATION PROCEDURE
SCXI -1122
This document contains information and step-by-step instructions for
calibrating the National Instruments SCXI-1122 module.
Contents
Introduction ............................................................................................. 2
What Is Calibration? ........................................................................ 2
Why Should You Calibrate? ............................................................ 2
How Often Should You Calibrate? .................................................. 2
Equipment and Other Test Requirements ............................................... 2
Test Equipment ................................................................................ 2
Instruments ............................................................................... 3
Connectors ................................................................................ 3
Software and Documentation........................................................... 3
Software.................................................................................... 3
Documentation.......................................................................... 3
Test Conditions ................................................................................ 4
Calibration............................................................................................... 4
Setting Up the Module ..................................................................... 5
Verifying the Operation of the Module ........................................... 5
Verifying Analog Input Offsets ................................................ 5
Verifying Excitation Limits...................................................... 9
Adjusting the Module ...................................................................... 10
Adjusting Gain and Offset Errors ............................................. 10
Adjusting Calibration Constants............................................... 13
Adjusting Excitation Limits...................................................... 14
Verifying Adjusted Values .............................................................. 15
Test Limits .............................................................................................. 15
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