7Tutorial
316 Keysight 34970A/34972A User’s Guide
Two-Wire Multiplexers
The 34901A and 34902A multiplexers switch both HI and LO inputs, thus
providing fully isolated inputs to the internal DMM or an external instrument.
These modules also provide a thermocouple reference junction for making
thermocouple measurements (for more information on the purpose of an
isothermal block, see page 283).
To DMM
Channel 1
Channel 2
Channel 3
Channel 4
If any channels are configured to be part of the scan list, you cannot close
multiple channels; closing one channel will open the previously closed channel.
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