Originally Posted by
whatzuptan
im sure its 3 wire thanks for the quick response. says its a pt100 2 reds and 1 blue wire. you ever start a project and wish you could just go back. that's were I am right now with this project. the problem started when I couldn't figure what 4 posts these 3 wires went on or what order well after many hrs on the internet I got it to work. the first problem wasn't so much the wires. it was in the pid I had to tell it what temp probe I was using. once I did that, I got the wires figured out so I thought . had lead in the pot so I wet out to melt it and mount the probe. pid took the temp up to 600f maintained it their. but I couldn't figure out why it wouldn't let me raise the temperature .
went into the (high value display setting) it was set at 600f. ok think I know the deal so, I set it up 900f
then the whole system goes crazy display reads all over -400f 1000f all over then the display just goes to LLLL-UUUU