Bently Nevada 3500/50-02-02 Tachometer Module.
Bently Nevada 3500 Machinery Protection System Speed Monitors
Our 3500/50M Tachometer Module features 2 channels which accept input from Proximitor probes or magnetic pickups to measure shaft rotating speed, rotor acceleration, or reverse rotation. The 3500/50M Tachometer conditions the inputs and compares the conditioned signals with user-programmable set points that can drive alarms and relay logic in the 3500 relay modules. Alarm options offered with 3500 Rack Configuration software include Speed Band, Zero Speed, Rotor Acceleration and Reverse Rotation. The Keyphasor and speed measurements are also an integral part of the Bently Nevada Turbine Supervisory Instrumentation (TSI) suite of sensors for steam turbines. The 3500 System is available as a SIL 2 rated system and with multiple Hazardous Area and country-specific approvals available. External terminations and internal barrier versions are also available. You should note that the 3500/50M is not designed for Overspeed Detection.