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Keysight DAQ970A Service Manual

Keysight DAQ970A
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Performance Verification 3
Keysight DAQ970A/DAQ973A Service Guide 89
DAQM905A relay verification (optional)
This optional procedure uses an external DMM to check that the RF relay is
functioning, using 2-wire ohms measurement with handheld test probes.
1 Be sure to read “Plug-in Module Test Considerations” on page 76.
2 Prepare the module by connecting an SMB short to CH10, CH11, CH12, and
CH13. Connect the COM1 terminal to the DMM.
Be sure to use the correct SMB connectors for the module.
3 Install the module in slot 100.
4 Close Channel 11.
5 Measure the resistance on the DMM. Ensure that measurements is less than
1 . Replace the module if the relay contact resistance is in excess of 1 .
6 Close all othe channels.
7 Measure the resistance, ensure that they are “open” or more than 10 M.
Replace the module if the relay contact resistance if less than 10 M.
8 Repeat steps 4 and 7 for Channels 12, 13, and 14.
9 Repeat steps 2, 3, 4, 5, 6, 7, and 8 for the channels connected to COM2.
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Keysight DAQ970A Specifications

General IconGeneral
Scan RateUp to 450 channels/sec
ConnectivityUSB, LAN, GPIB (optional)
Display4.3-inch color LCD
Operating Temperature0 °C to 50 °C
Number of slots3 slots
Measurement TypesDCV, ACV, DCI, ACI, 2-wire resistance, 4-wire resistance, frequency, temperature, capacitance
Voltmeter6.5 digit
Resolution22 bits
MemoryNon-volatile memory