The Daihatsu Meiyo MDP-REVD is a high-reliability speed switch designed for monitoring the rotational velocity of marine diesel engines and industrial rotating machinery. This precision instrument processes frequency signals from magnetic sensors to trigger internal relays when specific RPM thresholds—such as overspeed or underspeed—are reached. Engineered for the extreme vibration and thermal conditions of an engine room, the MDP-REVD provides critical safety interlocking and alarm functions, ensuring that machinery operates within safe mechanical limits to prevent catastrophic failure or engine runaway.

Product Q&A

Q1: What is the primary safety function of the MDP-REVD speed switch? A1: Its most critical role is “Overspeed Protection,” where it automatically triggers a shutdown signal or alarm if the engine’s RPM exceeds the manufacturer’s safe operating limit.

Q2: How is the speed threshold adjusted on this model? A2: The MDP-REVD typically features internal potentiometers or DIP switches that allow technicians to calibrate the trip points (set-points) based on the specific frequency-to-RPM ratio of the installed sensor.

Q3: Can it be used with sensors from other manufacturers? A3: Yes, as long as the sensor provides a compatible pulse or AC frequency signal (usually from a magnetic pickup) that falls within the input impedance and voltage range specified by Daihatsu Meiyo.

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