How can I tell when an FP- AI-110 channel is not connected?

I am using cFP-AI-110 to monitor 0-5 volts. The problem is when some one unplugs the cable to this module, it still reads the same voltage with a little drifting, so how do I differentiate between the two scenarios?
Brad Whaley
LabVIEW Certified Engineer

There is no way for the AI-110 to know that the sensor has been disconnected because it doesn't have any open circuit detection circuitry. You could add some circuitry on the sensor connection to do something such as connect it to a known voltage and then if it read that level you would know that it was disconnected.
Regards,
JR A.

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