Overview
The Bently Nevada 3500/42M module with part numbers 140734‑02 + 128229‑01 is a four-channel vibration and position monitor. It supports proximity probes and seismic transducers to continuously monitor rotating machinery, detecting displacement, vibration, and mechanical imbalance to protect critical equipment.
General Information
Part Number: 140734‑02 + 128229‑01
Brand / Country of Origin: Bently Nevada / USA
Manufacturer: Bently Nevada (Baker Hughes)
Series: 3500 Series
Type: Proximitor / Seismic Monitor Module
Mounting: Rack-mounted in 3500 system
Power Specifications
Supply Voltage: 24 V DC nominal
Power Consumption: Designed for efficient continuous operation with internal filtering
Protection: On-board isolation and signal conditioning to reduce interference and maintain signal fidelity
Communication & Interface
Interface Type: Backplane connection to the 3500 system
Supported Signals: Accepts displacement (proximity) and seismic (velocity/acceleration) inputs
Outputs: Buffered transducer outputs plus analog 4–20 mA channel output
Diagnostics: Front-panel LEDs indicate module health, communication, and bypass status
Environmental
Operating Temperature: –40 °C to +85 °C
Humidity: 10% to 95% RH, non-condensing
Installation: Suitable for industrial rack enclosures in machinery protection systems
Robustness: Built to operate under vibration and electrical noise typical of rotating equipment
Dimensions & Weight
Dimensions (L × W × H): 241.3 × 24.4 × 241.8 mm
Weight: ~0.91 kg
