Keysight (Agilent) 44421A
20 Channel, Relay Multiplexer Assembly
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Description
The HP 44421A is a 20 Channel Relay Multiplexer Assembly used with the 3497A. Reed relay multiplex card to be used in the 3497A Data Acquisition System Each card switches 20 channels and each channel has a HI, Lo, and Guard line Low thermal offset of the relays make it suitable for measuring the outputs of strain gages and other transducers