Keysight DAQ970A Service Manual

Calibration Procedures 2
Keysight DAQ970A/DAQ973A Service Guide 37
Input Connections
You will need the DAQM901A multiplexer module to verify or adjust the internal
DMM. The DAQM901A multiplexer module should be connected in slot 300 with
the following connections:
Short (Zero)
Zero test connections for the DAQM901A multiplexer module is best
accomplished using 4-wire copper wires with low-thermal offset measurements.
The 4-wire channels configured for the DAQM901A multiplexer module is channel
n and n+10.
– For DC voltage, 2-wire and 4-wire resistance, Channel 303 and 313 are used
for zero test connections as illustrated below:
– For DC current, Channel 321 is used for zero test and left OPEN.
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Keysight DAQ970A Specifications

General

Scan Rate	Up to 450 channels/sec
Connectivity	USB, LAN, GPIB (optional)
Display	4.3-inch color LCD
Operating Temperature	0 °C to 50 °C
Number of slots	3 slots
Measurement Types	DCV, ACV, DCI, ACI, 2-wire resistance, 4-wire resistance, frequency, temperature, capacitance
Voltmeter	6.5 digit
Resolution	22 bits
Memory	Non-volatile memory