TRI-SEN DM305-93-2844 DM305 Servo Control System

The TRI-SEN DM305 Servo Control System (93-2844) is an analog, jumper-configurable closed-loop controller for hydraulic actuator positioning and servo-valve control in industrial turbomachinery. Built as a PCB assembly, the DM305 mounts in a control cabinet or equipment chassis and integrates with TRI-SEN turbomachinery control systems. It is designed for use in steam turbines, gas turbines, and centrifugal compressors, and is commonly applied in steam turbine governors, gas turbine fuel valve controls, compressor anti-surge systems, refinery process controls, power generation equipment, and petrochemical facilities where precise actuator positioning and continuous operation are essential. Maintenance teams and system integrators rely on this system for repair, retrofit, expansion, or replacement of analog servo controller assemblies in critical process automation applications. Common replacements include the TRI-SEN DSC100 Digital Servo Controller, the M306 Servo Controller, and the TS300 Digital Governor.