Temp probes not giving accurate reads @ PID

[awarner322]

Hey guys. I am having trouble trying to figure out my PID/temp probe. I followed Kal's concept of measuring the temp of the mash in the plumbing (just after ball lock in the mash tun).

The problem: I did a manual test with a thermometer and it is reading much differently INSIDE the mash tun vs what the readout from the PID is reading. ie: 120 degrees in the mashtun and 77.9 per the probe that had been in re circulation for ~5 mins.

What am I missing here? Do these need to be calibrated somehow...I am new to PID and RTD sensors. Thanks in advance for the help...few pics below which probably are not helpful

 

[Vesteroid]

Most pids will accept different types of thermocouples, do you have yours set for rtd?

 

[awarner322]

ahh thank you. I mis-read the manual. I swear I tried the combo that is now working already. Nonetheless, thank you!