Daqm903A Shorted Relay Contact Verification - Keysight Technologies DAQ970A Service Manual

3 Performance Verification

DAQM903A shorted relay contact verification

This procedure uses an external DMM to make 2-wire ohms measurements across
all open terminals on the DAQM903A. As this is to verify open or shorts only,
measurement accuracy is not required, so a 2-wire ohms measurement with
handheld test probes is sufficient.
1 Install the DAQM903A module in slot 100. Close Channels 01 through 20.
2 Measure the resistance from the CM terminal to the NC terminal on each
3 Install the module in slot 100. Open Channel 01 through 20. Remove the
4 Measure the resistance from the CM terminal to the NO terminal on each
84
Remove the module from the DAQ970A/DAQ973A.
channel. Ensure that they are "open" or more than 10 MΩ.
module from the DAQ970A/DAQ973A.
channel. Ensure that they are "open" or more than 10 MΩ.
Keysight DAQ970A/DAQ973A Service Guide