133434-01 | Bently Nevada I/O Module with External Terminations

The 3500/50M Tachometer Module is a 2-channel module that acceptsinput from proximity probes or magnetic pickups to determine shaftrotative speed, rotor acceleration, or rotor direction. The modulecompares these measurements against user-programmable alarmsetpoints and generates alarms when the setpoints are violated.The Tachometer Module is programmed using the 3500 RackConfiguration software. The following configuration options areavailable:l Speed Monitoring, Setpoint Alarming and Speed Band Alarmingl Speed Monitoring, Setpoint Alarming and Zero SpeedNotificationl Speed Monitoring, Setpoint Alarming and Rotor AccelerationAlarmingl Speed Monitoring, Setpoint Alarming and Reverse RotationNotificationThe 3500/50M Tachometer Module can be configured to supplyconditioned Keyphasor signals to the backplane of the 3500 rack for useby other monitors. Therefore, you don’t need a separate Keyphasormodule in the rack.The 3500/50M Tachometer Module has a peak hold feature that storesthe highest speed, the highest reverse speed, or the number of reverserotations that the machine has reached. You can reset the peak values.