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34972A + 34901A continuous voltage measurements, no relay switching

Question asked by dimension on Aug 28, 2013
Latest reply on Aug 29, 2013 by tomc
Hi,

I'm doing an automated DAC measurement with a agilent 34972A with a 34907A multifunction module and a 34901A multiplexer module. I would like to find a way to minimize relay switch events in the current setup.

At the moment I use digital outputs of the multifunction module to program the digitial bits of the DA converter. I then use channel 1 on the 34901A to measure the output voltage of the DAC. This works fine, but before/after each voltage measurement command the 34972A switches some relays on and off. Because the DAC has about 2048 digital codes this means that for every DAC device I measure these relays have to switch about 5000 times. 
Is there a way to keep channel 1 of the 34901 in measure voltage mode without any relays switching between each measure command? This would seem like a more elegant solution and also a lot better for the relay-lifetime then the current setup. 

Thanks!

measure command i currently use:
VOLTage:DC:NPLC 20,(@201)
MEASure:VOLTage:DC? 10,0.001,(@201)  

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