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Ultimaker Temp Sensor: Pt100?

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Hi!

Some of us try to find an easy solution to measure how accurate the temperature sensor on our machines is.

Therefore i tried to measure the resistance of the PT100 with an Ohm-meter. The funny thing is, at about 22°C it shows me around 3Ohm - that's kinda weird since a real PT 100 should have 100 Ohm at 0°C as far as i know.

Am I missing something? Why isn't it like I expected? Is it really an Pt100 in the UMO or maybe something else?

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