RTD pt100 problems

[Welderbydaybrewerbynight]

I recently purchased four tri-clamp rtd pt100 sensors and as I am wiring them up I have brought up two of the PIDs 3 of them are brand new and one is a year or two old. I now have 1 new and the old one powered up and all of the rtds are wired up to disconnects so I can interchange them and no matter which 1 I use in any vessel I keep getting a temperature reading of 1205 degrees. I used to just have a thermocouple on the old PID, and it worked just fine I know I have all of the wiring right. I have switched over the old PID to make sure it reads as an RTD, is there some mistake I'm making here I don't understand? Any help or clues would be very very much appreciated.

 

[Welderbydaybrewerbynight]

I don't have an ohms meter so I can't check if the RTD's are okay but surely all 4 of them wouldn't be bad I just bought them from auberins electronics

 

[acidrain]

You're going to need a meter to measure/check the probes. I have heard of some probes having the colored wires messed up. If they are all the same brand/kind, they could all be wrong.
Which PID are you using? Is there supposed to be a jumper?