National Instruments SCXI-1141, Calibration Procedure

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© National Instruments Corporation 7 SCXI-1141/1142/1143 Calibration Procedure
• moduleSlot —1
• channel —0
• filterMode —0
• freq —0 kHz
• cutoffDivDown —0
• outClkDivDown —2
9. Input the test voltage listed in Table 9 to channel 0 of the SCXI
module.
10. Call
DAQ_Op
. Set the following parameters:
• DAQdeviceNumber —The device number for the DAQ device
• channel —0
• gain —1 for a 16-bit E Series DAQ device
• count —100
• sampleRate —100
11. Call
SCXI_Scale
to convert the readings from binary to voltage.
Set the following parameters:
• SCXIChassisID —The device number assigned by MAX
• moduleSlot —1
• channel —0
• SCXIgain —The gain you are testing
• TBgain —1
• DAQboard —The device number for the DAQ device
• DAQChannel —0
• DAQgain —1
• numPoints —100
• binArray —The array returned from
DAQ_Op
The result is a set of scaled voltages read from the SCXI module.
12. Average the results returned by
SCXI_Scale
. Compare the averaged
result to the upper and lower limits listed in Table 9.
13. Repeat steps 6 through 12 for each remaining test point.
14. Repeat steps 6 through 13 for each remaining channel, changing the
moduleChan variable to the channel number you are testing.
You have finished verifying the operation of the SCXI-1141/1142/1143.