Bentley Nevada 3500/42M Proximity/Seismic Monitor Module. 4-Channel

The Bentley Nevada 3500/42M is a 4‑channel proximity/seismic monitor designed for vibration, position, and acceleration monitoring within the 3500 protection rack. It accepts inputs from proximity probes, velocity sensors, and accelerometers, providing conditioned vibration and position measurements with programmable alarms for machinery protection. Country of manufacture: USA. Technical Specifications: Model: 3500/42M Proximitor/Seismic Monitor Channels: 4 channels, programmable in pairs (channels 1–2 and 3–4) Compatible transducers: Proximity probes, velocity sensors, seismic accelerometers (acceleration inputs), shaft absolute combinations Supported measurement functions: Radial vibration, thrust position, differential expansion, eccentricity, REBAM, acceleration, velocity, shaft absolute, circular acceptance region Primary purpose: Continuous machinery protection using user‑configured alert and danger setpoints; provides essential vibration/position data for operations and maintenance Input signals: Accepts 1–4 proximity, velocity, or acceleration signals; standard I/O input impedance 10 kΩ (Proximitor/acceleration) Power consumption: Typical 7.7 W Sensitivity examples: – Radial vibration: 3.94 or 7.87 mV/µm (100 or 200 mV/mil) – Thrust: 3.94 or 7.87 mV/µm (100 or 200 mV/mil) – Differential expansion: 0.394 or 0.787 mV/µm (10 or 20 mV/mil) – REBAM: 40 or 80 mV/µm (1000 or 2000 mV/mil) – Acceleration: 10 mV/(m/s²) (100 mV/g) – Velocity: 20, 5.8, or 4 mV/(mm/s) pk (500, 145, or 100 mV/in/s pk) Front‑panel indicators: OK, TX/RX, BYPASS LEDs Buffered outputs: One coaxial buffered transducer output per channel (front panel) Application: Turbines, compressors, pumps, motors, and general rotating machinery condition monitoring and protection Country of manufacture: USA Please review pictures carefully and let us know if you have any questions!