GESTRA NRR-2-3 B

This GESTRA NRR-2-3B is a three-position proportional level controller PCB card for boiler feedwater level regulation systems, widely used in marine and industrial steam boiler control. The boiler level control card receives capacitance probe signals from NRG series level sensors and executes closed-loop PID simulation logic for water level control. The boiler level control card drives motorized feedwater regulating valves to maintain stable boiler water level within the preset safe range. The boiler level control card features manual override function for local hand operation during maintenance or emergency conditions. The boiler level control card is built to withstand vibration, humidity and temperature fluctuation suitable for marine boiler control cabinets.

This board performs real-time level measurement and valve regulation for boiler safety supervision. The feedwater regulation module compares actual water level value with setpoint and outputs proportional relay signals to the valve actuator. The feedwater regulation module has adjustable proportional gain and LED status indicators for on-site calibration and fault diagnosis. The feedwater regulation module meets marine classification requirements for ship boiler automation systems. The feedwater regulation module is widely installed on vessel steam boiler and auxiliary boiler water level control systems.

It serves as a vital spare control component for boiler feedwater control system overhaul and retrofit. The Gestra NRR-2-3B spare board is manufactured to original factory specifications for direct plug-in replacement. The Gestra NRR-2-3B spare board prevents boiler dry-running or overfill risk and shortens equipment downtime during maintenance work. The Gestra NRR-2-3B spare board supports simple wiring and fast on-site parameter setup and calibration. The Gestra NRR-2-3B spare board is stocked by marine boiler automation spare parts suppliers worldwide.