Hi there. In 2013 I opened this topic: https://www.picotech.com/support/search.php?author_id=22515&sr=posts In short the TC-08/USB monitors the temperatures of a heat pump. The heart of the pump is a compressor, controlled by a frequency converter (FC). The readings from my TC-08/USB suddenly drops ...

The behavior has been normal since I made the ufinished grounding. I was just wondering, at my job we have been using these systems for years, and never experienced a problem like this, but anyway, it seems to be solved by now. I just have to calibrate / check values from the two sensors that change...

Ooooops, I forgot the model/type, it is an USB-model, the blue one ,

/Jan Holland

Hi again Yes 1 of 6 thermocouples are tuching the tubings on the heating unit, and grounding? On a laptop, grounding is not possible as the powersupply connect to main, but no ground, and a ground connetion is hard to do permanently, but I have tried, simply a wire from the metal body of the heating...

Hi all I am running a TC-08 on a small laptop, measuring temperatures on a Mitsubishi heat pump. From time to time the TC-08 goes crazy, it looks as the polarity on the K probes changes from + to - !? It can switch back again riht by itself. It happened again today, and I reinstalled the software to...