Overview

The 9120 can be calibrated using the operator interface Configurator software usually supplied with the system.  Before performing this procedure on a newly installed controller, the unit needs to be powered on for at least 30 minutes for a warm up period.

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