Your probes are similar in profile/sizing to the knives, and they're showing +/-5? Those little ovens should not have cold spots, especially near the middle.. For tempering, that should be more than adequate control. As long as you've got time and aim temp right, you should be getting what you want. (FWIW I'm a metallurgist, 20 years working in steel melting industry).

 

Your probes are similar in profile/sizing to the knives, and they're showing +/-5? Those little ovens should not have cold spots, especially near the middle.. For tempering, that should be more than adequate control. As long as you've got time and aim temp right, you should be getting what you want. (FWIW I'm a metallurgist, 20 years working in steel melting industry).

Thanks @Byen

These are the results I've been able to achieve with a P of 17 an I of 450 and a D of 56 (GREEN). It has an 8 degree total delta from peak to valley.

 

Mine has arrived - Berme type c100 from Amazon. the instructions are good, 3 digit model but instructions are written for it, and get you to every menu. Forgot to put the SSR in there though

I to have one of these 3 digit models but I didn't get a manual for it. Damned if I can find one in my searching. Could you please PDF your manual and attach it? I'm struggling to make any progress with mine.

 

on it. Give me a moment to find it - may have to take pics and send

 

on it. Give me a moment to find it - may have to take pics and send

Thank you. You're just about my last hope. I'm very close to binning it, if I don't find some instructions.

 

This was my final result! Turned out working pretty darn good!

 

on it. Give me a moment to find it - may have to take pics and send

Hi Byen. Did you ever find those instructions? I've parked the PID controller until one day I get the instructions from someone.