PT100

Question

I would like to know with which temperature tester (brand and model) I can use the PT100 probe of TE Connectivity with manufacturer code NB-PTCO-158.

geralds · Answer

Hi celex ,

You can not connect directly that sensor on an temp. tester, if it has not an amplifier.

http://www.farnell.com/datasheets/2305684.pdf

Please read the data sheet and build a signal conditioning module with preamp.

https://de.farnell.com/en-DE/c/automation-process-control/signal-conditioning/signal-converters?signal-conditioner-input…

Best Regards

Gerald

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Gough Lui · Answer

You could test the probe with a handheld indicator that supports Pt100 (but check the alpha value) - some examples include:

or alternatively, if you're near a bench, you could use a high-accuracy DMM and convert resistance values using the standard Pt100 curve.

Do your own research before making any purchases as I can't guarantee compatibility.

- Gough

ajcc · Answer

It's hard to tell what your idea of a temperature tester is from your question and the product you've picked out (which as far as I can tell is just the cheapest PT100 RTD available on Newark). From your question it sounds like you want a handheld meter, but from the sensor it seems like you just want to play around with RTDs? If you search for PT100 Resistance Table you'll notice that you need a fairly accurate way of measuring the resistance, in practice that means a good current source and a differential/instrumentation amplifier. If you're familiar with microcontrollers then a development board for something like the MAXIM MAX31865 MAXIM MAX31865 all-in-one solution with its SPI interface could be interesting? You can also find a lot of application notes on how to use and build circuits for reading RTDs, like this one from Ti or this blog post from Ti listing different circuit topologies.

PT100

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