Overview

The series 9120 controller can be calibrated using the touch screen and a calibrator.  Before performing this procedure on a newly installed controller, the unit needs to be powered on for at least thirty (30) minutes for a warm up period to allow the inputs/outputs to stabilize with the environment.

 

The series 9120 has two analog inputs. Each range has a zero and span calibration value. A cold junction trim value must be calibrated for thermocouple inputs.  Note: the cold junction trim value must be performed, if necessary, after the zero and span calibration. There are two analog outputs each with a zero and span value.