Description
BENTLY NEVADA 140734-01 Proximitor Monitor
1. Product Description
The BENTLY NEVADA 140734-01 is a 4-channel proximity monitor module designed for the 3500 Series Machinery Protection System. It processes vibration and position signals from proximity probes, eddy current sensors, and accelerometers to provide real-time condition monitoring for rotating machinery such as turbines, compressors, and pumps. With high-precision signal conditioning and dynamic range adjustment, this module ensures accurate detection of imbalances, misalignments, or bearing wear, enabling predictive maintenance and minimizing downtime.
2. Product Parameters
| Parameter | Specification |
|---|---|
| System Compatibility | BENTLY NEVADA 3500 Series Monitoring System |
| Input Channels | 4 channels (expandable via modular design) |
| Sampling Rate | Up to 20 kHz per channel |
| Sensor Types | Eddy current proximity probes, accelerometers |
| Signal Range | ±50 VDC (proximity) / ±5 VDC (acceleration) |
| Accuracy | ±0.5% of reading |
| Frequency Response | DC to 10 kHz |
| Power Supply | 18–36 VDC (via 3500 rack) |
| Communication Interfaces | RS-485/Modbus RTU, Ethernet (optional) |
| Operating Temperature | -40°C to +85°C |
3. Advantages and Features
- Multi-Parameter Monitoring: Simultaneously measures vibration amplitude, axial position, and shaft speed.
- Self-Diagnostics: Continuous internal checks identify faults or signal anomalies, reducing maintenance costs.
- Dynamic Gain Adjustment: Automatically adapts to signal levels for optimal accuracy across varying operating conditions.
- High-Speed Sampling: 20 kHz rate captures transient events and detailed waveform analysis.
4. Application Areas and Use Cases
- Industries: Power generation, oil & gas, petrochemical, manufacturing, aerospace.
- Key Applications:
- Vibration analysis of steam turbines in power plants.
- Axial displacement monitoring of compressors in refineries.
- Condition assessment of gearboxes in industrial machinery.
5. Competitor Comparison
The 140734-01 offers:
- Higher Channel Density: 4 channels vs. 2–3 channels in comparable modules.
- Extended Temperature Range: -40°C to +85°C vs. typical -20°C to +70°C.
- Built-in Signal Conditioning: Reduces external hardware requirements for cost-effective integration.
6. Selection Recommendations
- System Requirements: Ensure compatibility with 3500 Series racks and software (e.g., System 1).
- Environmental Factors: Choose based on temperature extremes (e.g., -40°C for outdoor installations).
- Data Resolution: Opt for higher sampling rates (20 kHz) for high-speed machinery.
7. Precautions
- Sensor Calibration: Regularly verify probe alignment and linearity for accurate measurements.
- EMI Protection: Shield cables and follow grounding guidelines to prevent interference.
- Firmware Updates: Keep software current to access new features and bug fixes.
Shanxi XinyeDa International Trade Co., Ltd. supplies BENTLY NEVADA 140734-01 and automation spare parts. Visit www.xydcontrol.com or contact us for sales and technical support.


