The C50 Controller/Alarm Unit was a 1/16 DIN single-loop controller designed to measure, indicate, and control standard process signals. Designed for simple PID control, the C50 offered on/off or time proportioning control options with a one-shot self-tuning feature. The C50 could also function as a standalone alarm unit, making it ideal as an over-temperature safety cutout for furnaces or ovens. With quick setup for most process signals and IP65 (NEMA3) front panel protection, it was suitable for a wide range of applications.
In September 2024, the C50 was superseded by the ControlMaster CM10 1/8 DIN universal process controller.