3500/42-09-00 176449-02 | 128229-01
Part Number: 128229-01
Manufacturer: Bently Nevada
Series: 3500
Input Signal: -10 Vdc to +10 Vdc
Power Consumption: 10.5 watts
Product Type: Proximitor Monitor Seismic I/O Module
Ethernet: 100Base-FX Fiber-Optic
Operating Temperature: -30°C to +65°C
Dimensions: 241.3mm x 24.4mm x 99.1mm (H x W x D)
Weight: 0.20 kg (0.44 lb)

The 3500/42M Proximitor Seismic Monitor:
l Protects machinery by continuously comparing
monitored parameters against configured alarm
setpoints to drive alarms.
l Communicates essential machine information to both
operations and maintenance personnel.
The 3500/42M Proximitor Seismic Monitor is a four-channel
monitor that accepts input from proximity and seismic
transducers. It conditions the signal to provide vibration and
position measurements and compares the conditioned
signals with user-programmable alarms.
You can program each channel using the 3500 Rack
Configuration Software to monitor and report:
– Radial vibration – REBAM – Thrust

position
– Acceleration – Differential expansion – Shaft
absolute
– Eccentricity – Circular acceptance
region

Frequency Response
Direct filter
User-programmable
Single-pole
-3db at 4 Hz to 4000 Hz or
1 Hz to 600 Hz
± 1% accuracy
Gap filter -3 dB at 0.09 Hz
Not 1X filter
60 cpm to 15.8 times running
speed
Constant Q notch filter
Minimum rejection in
stopband of 34.9 dB
Smax 0.125 to 15.8 times running
speed
1X and 2X
vector filter
Constant Q Filter
Minimum rejection in
stopband of -57.7 dB