I know how to calibrate.. not a problem. My concern is the amount of offset. 13+ degrees seems excessive. It reads higher than actual (it needs a -13 offset). It is a pt100 RTD on a cheap Auber PID (both bought from Auberins). I cut the very ends of the probe wire off to remove the terminal connectors, then soldered it to a 3 prong socket (also from Auber).
My question is, should I be concerned that this is indicative of a poor solder joint (higher resistance = higher indicated temp), a bad probe, or is an initial 13 degree error on par for what you guys have seen with these?
My question is, should I be concerned that this is indicative of a poor solder joint (higher resistance = higher indicated temp), a bad probe, or is an initial 13 degree error on par for what you guys have seen with these?