Description
BENTLEY NEVADA 140734-01 3500/40M Proximitor Monitor
The BENTLEY NEVADA 140734-01 is a high-performance vibration and displacement monitoring module designed for rotating machinery in industries such as power generation, oil & gas, and manufacturing. As part of the 3500 Machinery Protection System, this module combines advanced signal processing, multi-channel monitoring, and real-time data analysis to enhance equipment reliability and reduce downtime.
1. Product Description
The 140734-01 is a 4-channel Proximitor Monitor that supports eddy current proximity sensors to measure radial vibration, axial displacement, and shaft eccentricity. It interfaces with BENTLEY’s 3500 Series racks, providing continuous health assessment for critical machinery like turbines, compressors, and pumps. With configurable alarm thresholds, 24-bit resolution, and dual-channel redundancy, it ensures precise fault detection and failsafe operation.
2. Key Technical Parameters
| Parameter | Specification |
|---|---|
| Channels | 4 (eddy current proximity sensors) |
| Input Voltage | 24 V DC |
| Frequency Range | 0–10 kHz |
| Output Signals | 4–20 mA analog, digital relays |
| Accuracy | ±0.1% of full scale |
| Temperature Range | -40°C to +85°C (operating) |
| Dimensions | 241.3 mm × 24.4 mm × 241.8 mm (9.50 × 0.96 × 9.52 inches) |
| Weight | 0.91 kg (2.0 lbs) |
3. Advantages and Features
- Multi-Channel Efficiency: Simultaneously monitors four parameters, reducing system complexity.
- Precision Measurement: 24-bit resolution and low noise levels ensure accurate readings.
- Dual-Channel Redundancy: Ensures continuous operation in safety-critical applications.
- Rugged Design: Operates reliably in extreme temperatures and high-vibration environments.
- Case Study: A power plant reduced unplanned shutdowns by 25% by deploying 140734-01 to detect bearing wear in steam turbines.
4. Application Areas and Use Cases
- Industries: Power generation, oil & gas, manufacturing, and water treatment.
- Applications:
- Shaft vibration and displacement monitoring.
- Eccentricity and misalignment detection.
- Predictive maintenance systems.
- Case Example: A petrochemical plant used 140734-01 to monitor compressor axial displacement, preventing a $300,000 production loss due to seal failure.
5. Competitive Comparison
The 140734-01 outperforms similar modules with:
- Higher Resolution: 24-bit vs. standard 16-bit in competing products.
- Wider Temperature Range: Operates in -40°C to +85°C, surpassing most alternatives.
- Integrated Redundancy: Dual-channel design eliminates single points of failure.
6. Selection Recommendations
- System Compatibility: Ensure compatibility with BENTLEY 3500 racks and proximity sensors.
- Environmental Needs: Prioritize this module for high-temperature or high-vibration settings.
- Scalability: Pair with additional modules (e.g., 149992-01 relay outputs) for comprehensive monitoring.
7. Precautions
- Installation: Power down the system before module replacement.
- Calibration: Perform annual sensor calibration to maintain accuracy.
- Environmental Limits: Avoid exposure to condensation or corrosive gases.
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