Product Overview
The Bently Nevada 3500/42-01-00 Proximitor Seismic Monitor is a high-performance vibration monitoring module for the 3500 Machinery Protection System.
It accepts up to four inputs from proximity probes, accelerometers, or velocity sensors to measure vibration, thrust, and shaft position parameters.
Moreover, it delivers accurate real-time diagnostics of rotating machinery, helping prevent costly downtime and unexpected equipment failure.
Functional Highlights
- Multi-Sensor Compatibility: Works with proximity, acceleration, and velocity transducers for flexible monitoring setups.
- Fast Response: Updates readings within 100 milliseconds for precise machine condition tracking.
- LED Indicators: OK, TX/RX, and Bypass LEDs simplify on-site diagnostics and module status verification.
- Reliable Output: Provides 4–20 mA recorder output and buffered transducer signals for each channel.
- High Accuracy: Maintains a resolution of 0.3662 µA per bit with ±0.25% typical error.
- Low Power Consumption: Operates at only 7.7 watts, supporting energy-efficient system integration.
In addition, its modular design ensures quick replacement and maintenance without affecting system stability.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | 3500/42-01-00 |
| Spare Part | 176449-02 |
| I/O Module | 128229-01 (Prox/Seismic I/O with internal terminations) |
| Inputs | Up to 4 transducer signals (Proximity, Velocity, Acceleration) |
| Input Impedance | 10 kΩ (Proximitor & Acceleration inputs) |
| Power Consumption | 7.7 W typical |
| Transducer Power Supply | -24 VDC |
| Output | +4 to +20 mA per channel |
| Output Impedance | 550 Ω (Buffered), 300 Ω (Shaft Absolute) |
| Compliance | 0–12 VDC range, load resistance up to 600 Ω |
| Update Rate | ≤100 ms |
| Sensitivity Range | 3.94–80 mV/μm (depends on vibration type) |
| Agency Approval | None (00) |
| Software Requirement | Compatible with 3500/01 v2.70 or later |
System Integration
The 3500/42 Proximitor Seismic Monitor integrates seamlessly into turbine, compressor, and motor monitoring systems.
It supports both Proximitor® and Seismoprobe sensors, allowing engineers to measure vibration amplitude and phase directly from the machine shaft.
Therefore, it is ideal for machinery health monitoring in refineries, power plants, and heavy industrial environments.
For instance, the monitor communicates smoothly with other 3500 modules to ensure synchronized system operation.
Details
| Weight | 0.85 kg |
|---|---|
| Dimensions | 241.8 × 24.4 × 241.3 mm |
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