User Manual

6–7Module Calibration
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For example, if the observed value was 17, enter –53 [(0 – 17) x
3.0933 = –53] in signed magnitude binary into the upper byte of
the calibration word for that channel. Enter 10110101 in bits
17–10 of word 20. The lower byte will remain zero at this time.
6. Repeat steps 3 through 5 for each of the remaining input
channels.
7. Initiate a write block transfer to send the corrections to the
module. The input value read by the processor should now be
0000 for all channels.
Setting Channel Gain Calibration
1. Now set the precision voltage source for +100.000 millivolts.
Allow sufficient time (at least 10 seconds) for the input filter and
voltage source to settle.
Figure 6.5
Applying 100.000mV for Gain Calibration
1
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