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Finished wiring DIY controller yesterday.. use a PID for temperature readout as well as control of second element. Distilled water as a trial run part way through, pv began flashing, checked connections, found a loose crimp connection. Fixed, seemed to run OK. Today, the problem reappeared. Have a new thermocouple ordered, but it's coming by a slow boat from China. In the meantime, is there any way to troubleshoot this? Have two other temperature readouts so I'm not down and out as of yet.
Comments
is the PID in the same box as the heatsink? probably getting too warm... attach a couple pics..
Total boneheaded mistake..if polarity of the thermocouple is reversed, it will give a readout, but is incorrect. After a while, it will quit recording at all. Reversed connection, all is well.