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Convert Thermistor Reading for PXIe 4353

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Hi,

 

I am looking for code to convert PXIe 4353 cold junction voltage reading to temperature reading. I tried the code for PXI 2527 as attached but the temperature result is incorrect. Thanks for help. 

 

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Hello,

 

I have noticed a little error in your code.

The formula for lrt = R1/(Vref-Vo)

But you wrote: lrt = (Vref-Vo)/R1

 

Could that be your problem?

 

Greetings and Regards,

James

Greetings and Regards,
James
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Solution
Accepted by topic author Dong2016

Thanks James. The calculation is correct as it computes the current.

 

I have resolved the issue by working with NI support. A program is attached for future reference.

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