1944c temp calibration

[Anonymous]

Trying to figure out why all the sudden my temperature reading is off 15 degrees going to try to calibrate , but why all the sudden? Not sure if I had to calibrate when unit was first commissioned .
Thanks for all your help

 

[Johnny Electron]

Over time a temp sensor can change or become damaged. Sometimes you can adjust for the changes, and other times you can't. If you can't adjust it within limits then you might need a replacement. You should have no problems adjusting for 15 degrees using an offset. Keep in mind the machine has two offsets for temp. (one for sounder temp offset and the other for the NMEA temp offset)