Syl-2352 temperature issue

[dami860]

Hey guys,

Just installed the Syl-2352 pid controller and when I calibrate it in cold water the temps read fine (about 33 degrees). When I set the temp to say 154 degrees Fahrenheit, the water is actually around 170 (according to other calibrated thermometers). My offset temp is only 2 degrees and I have run an auto-tune.

Any ideas?

Thanks in advance.

 

[ebstauffer]

This is not uncommon. There is an offset setting in the config. Dont have the docs in front of me but it might be "pb" (I alwasy think of lead). I had to set mine about three degrees. Didnt check when the temp was low as I was most concerned around mashing temps.

Edit: OK found it. From their docs:

4.10 Input offset “Pb”
Pb is used to set an input offset to compensate the error produced by the
sensor or input signal itself.
For example, if the controller displays 5 oC when probe is in ice/water mixture,
setting Pb=-5, will make the controller display 0 oC.


Eric

 

[BSD_Glass]

Do you have the correct input set? Is it set to RTD or K thermocouple?

They usually come default set to k thermocouple and you need to switch it to RTD...

Cheers.

BSD