2 WIRE RTD TO AI 830 IO MODULE

How could I connect a 2 WIRE RTD to AI 830 IO Module. Is it ok if I short the terminals A and B. I am using AI830 with TU 810 Base. Kindly suggest

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jojijacob.j Rank: 491

Asked 7 months ago

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The card is designed for 3-wire measurement. If you connect a 2-wire resistance measurement, you naturally have a high deviation in the measured value (line resistance cannot be compensated). You then have to determine it and calculate it out. If you now only have a 2-wire RTD, you have to run the measuring line up to the resistance as a 3-wire, which then results in a negligible small error.

Regards
T.R.

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