350050 BENTLY
The 3500/50 Tachometer Module is a 2-channel module that accepts input from proximity probes or magnetic pickups (except as noted) to determine shaft rotative speed, rotor acceleration, or rotor direction, compares these measurements against user-programmable alarm setpoints, and generates alarms when these setpoints are violated. The 3500/50 Tachometer Module 
Description
The 3500/50 Tachometer Module is a 2-channel module that accepts input from
proximity probes or magnetic pickups (except as noted) to determine shaft
rotative speed, rotor acceleration, or rotor direction, compares these
measurements against user-programmable alarm setpoints, and generates
alarms when these setpoints are violated. The 3500/50 Tachometer Module is
programmed using the 3500 Rack Configuration Software and can be
configured with four different options:
1. Speed Monitoring, Setpoint Alarming, and Speed Band Alarming.
2. Speed Monitoring, Setpoint Alarming, and Zero Speed Notification.
3. Speed Monitoring, Setpoint Alarming, and Rotor Acceleration Alarming.
4. Speed Monitoring, Setpoint Alarming, and Reverse Rotation Notification.
The 3500/50 can be configured to supply conditioned Keyphasor® signals to the
backplane of the 3500 rack for use by other monitors, thus eliminating the need
for a separate Keyphasor module in the rack. The 3500/50 also has a peak hold
feature that stores the highest speed, highest reverse speed, or number of
reverse rotations (depending on channel type selected) that the machine has
reached. These peak values can be reset by the user.
Specifications
Inputs
Signal:
Each Tachometer Module accepts
up to 2 transducer signals from
proximity probe transducers or
magnetic pickups. The input
signal range is +10.0 V to -24.0 V.
Signals exceeding this range are
limited internally by the module.
