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Calibration with floating voltage source - Connections

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Hi,

 

I want to calibrate a PXI-6133 DAQ with a floating voltage source. In the calibration manual it says to connect the positive output of the calibrator to the AI + pin. Since my voltage source is floating I connect the negative output to AI GND. Should I short AI - to AI GND or leave AI - unconnected?

 

Thanks,

 

Jens

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Accepted by topic author pulsed_power

Sorry, I just answered this question for myself that it only makes sense to short the AI- and GND inputs.

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