

Product Introduction
The 3500/42 125672-02 is a 4-Channel Proximitor/Seismic Monitor Module from the Bently Nevada 3500 Series machinery protection system. It provides continuous monitoring of vibration and position inputs from proximity probes and seismic transducers. This module converts transducer signals into proportional voltage outputs and communicates directly with the 3500 rack’s backplane for alarm tripping and real-time data acquisition. It is commonly used in critical rotating machinery protection applications requiring high reliability and redundancy.
Parameters
| Parameter | Specification |
|---|---|
| Model | 3500/42 |
| Part Number | 125672-02 |
| Module Type | 4-Channel Proximitor/Seismic Monitor |
| Compatibility | Bently Nevada 3500 Series Rack |
| Input Channels | 4 independent channels |
| Input Types | 3300 XL proximity probes / seismic accelerometers |
| Signal Processing | Peak-to-peak, peak, or RMS (selectable) |
| Output Interface | Backplane communication to rack controller and relay modules |
| Alarm Logic | Programmable alarm setpoints per channel |
| Power Supply | Supplied via 3500 rack (24 V DC typical) |
| Operating Temperature | –30°C to +65°C (–22°F to +149°F) |
| Dimensions | 24.2 cm × 2.5 cm × 24.2 cm (9.5 in × 1.0 in × 9.5 in) |
| Weight | Approx. 0.95 kg (2.1 lbs) |
Application Scenarios
Steam Turbines & Gas Turbines – Monitors rotor vibration and casing expansion to prevent overspeed conditions and mechanical failure.
Centrifugal & Reciprocating Compressors – Provides continuous vibration monitoring to detect bearing wear, imbalance, and misalignment.
Large Generators & Motors – Used for shaft vibration monitoring to ensure operational stability and avoid unexpected outages.
Pumps & Fans – Applied in critical process pumps and large industrial fans to enable predictive maintenance and machine protection.
Power Generation, Oil & Gas, and Heavy Industries – Integrated into 3500 Series racks to deliver high-reliability machinery protection with redundant power and I/O configurations.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
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