BENTLY 3500/42M 140734-02

Description

The 3500/42M Proximitor/Seismic Monitor is a 4-channel monitor that accepts
input from proximity and seismic transducers, conditions the signal to provide
various vibrations and position measurements, and compares the conditioned
signals with user-programmable alarms. The user can program each channel of
the 3500/42M using the 3500 Rack Configuration Software to perform any of the
following functions:
• Radial Vibration
• Thrust Position
• Differential Expansion
• Eccentricity
• REBAM*
• Acceleration
• Velocity
• Shaft Absolute
• Circular Acceptance Region
Note: The monitor channels are programmed in pairs and can perform up to two of these functions
at a time. Channels 1 and 2 can perform one function, while channels 3 and 4 perform another (or
the same) function.
The primary purpose of the 3500/42M monitor is to provide:
1. Machinery protection by continuously comparing monitored parameters
against configured alarm setpoints to drive alarms.
2. Essential machine information for both operations and maintenance
personnel.
Each channel, depending on configuration, typically conditions its input signal to
generate various parameters called “static values”. The user can configure Alert
setpoints for each active static value and Danger setpoints for any two of the
active static values

Acceleration
and
Acceleration2
10 mV/ (m/s2) (100 mV/g).
Velocity and
Velocity2
20 mV/ (mm/s) pk (500 mV/ (in/s)
pk), or
5.8 mV/ (mm/s) pk (145 mV/ (in/s)
pk), or
4 mV/ (mm/s) pk (100 mV/ (in/s)
pk).
Shaft Absolute,
Radial Vibration
3.94 mV/µm (100 mV/mil), or
7.87 mV/µm (200 mV/mil).
Shaft Absolute,
Direct
3.94 mV/µm (100 mV/mil), or
7.87 mV/µm (200 mV/mil).
Shaft Absolute,
Velocity
20 mV/ (mm/s) pk (500 mV/ (in/s)
pk), or
5.8 mV/ (mm/s) pk (145 mV/ (in/s)
pk), or
4 mV/ (mm/s) pk (100 mV/ (in/s)
pk).
Circular
Acceptance
Region
See Radial Vibration.