KS 407 stepping controller calculates the motor actuator stroke time into the PID algorithm to ensure a tight setpoint on motor-actuated control valves used on gas burners. From Pyrometer Instrument Co. Inc., the device has a single walk-down program menu to aid setup; standard dual relay outputs for control; a single relay for alarm; and universal inputs with input circuit monitoring for fault monitoring. Display shows setpoint, process variable and status of relays.

March 2001, RS# 219