• 19.11.2019, 11:48
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Accuracy of temperature measurment

Wednesday, June 12th 2019, 8:07pm

I'm in a process of building a new loop. It's completed but I only been running it "standalone" meaning that computer is off, nothing really get cooled. The loop has two D5 Next Pumps in serial one connected directly to another. It also have Calitemp sensor, which is according to specs should be very accurate. What I observed is that temperatures reported by Pumps (both are very close) are 2 degrees C higher than reported by Calitemp. Which one is correct?

Thanks in advance.


Senior Member

Thursday, June 13th 2019, 9:29pm

It could depend on the ambient space around the sensors. The pumps may have electronics near the sensor, I don't know, but it really doesn't matter.

What would interest me most is temperature change over time, so pick one and go with it (maybe the calitemp because you paid for it)
You can also apply a bias to the sensors so they read the same.

It is the same with flow sensors, the exact accuracy is not as important as monitoring change over time.

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