3500/42M Proximitor Seismic Monitor

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	3500/42M
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 3500/42M Proximitor Seismic Monitor is a four-channel monitor that accepts input from proximity and seismic transducers, conditions signals, and provides precise vibration, thrust, acceleration, and position measurements. Each channel of the 3500/42M Proximitor Seismic Monitor can be programmed via the 3500 Rack Configuration Software to monitor radial vibration (direct: 4 Hz–4000 Hz or 1 Hz–600 Hz, ±1% accuracy), Smax (0.125–15.8× running speed), thrust position (±0.33% full-scale typical, ±1% max), differential expansion (±0.33% full-scale typical, ±1% max), velocity, eccentricity, shaft absolute, REBAM, and circular acceptance region. With low power consumption of 1.09 W at 23.9 V supply and 45.5 mA, the 3500/42M Proximitor Seismic Monitor delivers accurate alarm-triggering data while occupying only 1 full-height rear slot, supporting efficient automated monitoring in industrial machinery.

Applications

Application – Monitor Radial Vibration in Turbines

The 3500/42M Proximitor Seismic Monitor measures radial vibration across 4 Hz–4000 Hz (±1% accuracy) and gap vibration from 0.09 Hz, allowing operators to detect rotor imbalance, misalignment, or bearing wear in turbines. Using all four channels of the 3500/42M Proximitor Seismic Monitor, you can continuously track peak vibration amplitudes up to 15.8× running speed, enabling predictive maintenance before equipment failure occurs.

Application – Measure Thrust Position in Compressors

With a thrust and differential expansion accuracy of ±0.33% typical (±1% max), the 3500/42M Proximitor Seismic Monitor monitors axial shaft movement to prevent rubbing against stationary components. Operators can program alert and danger setpoints for each channel of the 3500/42M Proximitor Seismic Monitor to automate warnings during high-load or start-up conditions.

Application – Track Differential Expansion in Steam Turbines

The 3500/42M Proximitor Seismic Monitor supports Smax monitoring from 0.125× to 15.8× running speed, enabling detection of thermal growth and expansion differences across shafts. Using the 3500/42M Proximitor Seismic Monitor, maintenance teams can capture differential movement trends over time, improving scheduling of shutdowns and alignments.

Application – Capture Acceleration and Velocity Data

The 3500/42M Proximitor Seismic Monitor accepts velocity and acceleration signals from seismic transducers (input impedance 10 kΩ), with sensitivity up to 10 mV/(m/s²) and 20 mV/(mm/s) peak. These precise measurements allow engineers to detect early-stage bearing defects or vibration anomalies using each channel of the 3500/42M Proximitor Seismic Monitor.

Specifications

Competitive Advantage

Competitive Advantage – High-Accuracy Measurement Across Channels

The 3500/42M Proximitor Seismic Monitor provides radial vibration accuracy ±1% at center frequency, thrust ±0.33% typical, and differential expansion ±0.33% typical. Its 1–4 channel capability allows monitoring multiple transducers simultaneously, delivering precise, actionable vibration and position data for predictive maintenance.

Competitive Advantage – Low Power Consumption for Industrial Automation

Drawing only 6.8 W per module, the 3500/42M Proximitor Seismic Monitor enables multi-channel deployment without overloading power supplies. With a supply current of 10 kΩ input impedance, all four channels can operate continuously with minimal energy impact.

Competitive Advantage – Configurable Signal Filters and Alarm Thresholds

The 3500/42M Proximitor Seismic Monitor offers programmable direct, gap, Not-1X, and 1X/2X vector filters, with alarm accuracy within 0.13% of the setpoint. This allows precise tuning of each channel to specific machinery conditions, ensuring alarms are triggered only when measurements exceed defined thresholds.