Overview

The 140734-02 Bently Nevada 3500/42M is a high-performance Proximitor Seismic Monitor designed for continuous protection of critical rotating machinery. It provides four independent channels to monitor vibration and proximity signals, ensuring accurate assessment of machinery condition and early detection of potential faults. This rugged module is engineered for industrial environments, supporting long-term reliability and integration with the 3500 monitoring system.

Key Features

• Four-channel input for simultaneous monitoring of proximity and seismic transducers

• Front panel LED indicators for operational status, communication, and bypass mode

• Buffered transducer outputs with short-circuit protection

• Recorder outputs with high-resolution voltage compliance for accurate data acquisition

• Rapid update rate (~100 ms) for timely monitoring

• Compact and robust design suitable for harsh industrial conditions

Technical Specifications

• Model: 140734-02

• Brand: Bently Nevada

• Product Type: Proximitor Seismic Monitor Module

• Input Impedance: 10 kΩ for proximitor and accelerometer channels

• Power Consumption: 7.7 W

• Buffered Transducer Outputs: Coaxial connectors, 550 Ω output impedance, -24 V DC transducer power

• Recorder Outputs: Voltage 0–12 V DC, 0.3662 V per bit resolution, ≤0.25% error at 25°C, ≤0.7% over full temperature range, 300 Ω impedance, short-circuit protected

• Update Rate: ~100 ms

• Operating Environment: Industrial-grade, compatible with 3500 system

• LED Indicators: OK, TX/RX communication, Bypass status

Applications

• Rotating Machinery Protection: Monitors turbines, compressors, and pumps for early fault detection

• Vibration Analysis: Measures displacement and vibration signals from Proximitor and seismic sensors

• Predictive Maintenance: Provides high-resolution monitoring data for proactive maintenance planning

• System Integration: Works seamlessly with Bently Nevada 3500 rack modules for comprehensive machinery monitoring

FAQ

Q: How many channels does the 140734-02 monitor simultaneously?
A: Four independent channels for proximity and seismic inputs.

Q: Are the outputs protected against short circuits?
A: Yes, both buffered transducer outputs and recorder outputs have built-in short-circuit protection.

Q: Is this module compatible with the 3500/42M system?
A: Fully compatible and designed to integrate with the 3500 monitoring rack.