Description
BENTLY NEVADA 135489-04
1. Product Description
The BENTLY NEVADA 135489-04 is a 4-channel Proximitor I/O Module designed for real-time vibration and displacement monitoring of rotating machinery. As part of the 3500 Series Machinery Health Monitoring System, this module processes signals from proximity sensors, thermocouples, or accelerometers to provide critical insights into equipment performance. It supports configurable alarm thresholds, relay outputs, and analog signals, enabling predictive maintenance and reducing downtime.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Input Channels | 4 analog (proximity, temperature, vibration) |
| Power Supply | 18–36 VDC (Option 01) |
| Output Signals | 4–20 mA analog, 6 configurable relays |
| Alarm Configuration | Adjustable OK/Alert/Danger thresholds |
| Communication | Modbus RTU (via 3500/92 gateway) |
| Dimensions | 24.2 cm × 11.2 cm × 2.5 cm (9.5 × 4.4 × 1.0 inches) |
| Weight | 0.44 kg (0.97 lbs) |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
Bently 135489-04
3. Advantages and Features
- Multi-Channel Monitoring: Simultaneously tracks displacement, velocity, and temperature for comprehensive machinery health assessment.
- Built-in Safety Barriers: Ensures EMI/EMC protection and compliance with hazardous area standards (e.g., IEC 60079-11).
- Hot-Swap Capability: Allows module replacement without powering down the system, minimizing operational disruptions.
- Flexible Configuration: Programmable via 3500/92 Software for custom alarm logic and sensor calibration.
4. Application Areas and Cases
- Oil & Gas: Monitoring compressor bearings in offshore platforms.
- Power Generation: Turbine vibration analysis in thermal power plants.
- Manufacturing: Predictive maintenance for conveyor systems.
- Case Study: A European refinery reduced unplanned shutdowns by 40% using the 135489-04 to detect misalignment in a critical pump before failure.
5. Competitor Comparison
- Cost-Effective Design: Lower installation costs compared to redundant systems while maintaining ±0.1% measurement accuracy.
- Space-Saving: Compact 4-channel design (24.2 cm × 11.2 cm) fits in standard 3500 racks.
- Extended Compatibility: Supports BENTLY 3300/3500 series sensors and third-party devices.
Bently 135489-04
6. Selection Recommendations
- Channel Requirements: Opt for 4-channel modules if monitoring multiple points; use 3500/42M for vibration-only applications.
- Environmental Conditions: Ensure IP65-rated enclosures for outdoor use.
- Safety Compliance: Verify IECEx/ATEX certification for hazardous environments.
7. Precautions
- Cable Shielding: Use twisted-pair, shielded cables to prevent signal interference.
- Calibration: Perform annual sensor calibration using BENTLY’s 3500 System Software.
- Firmware Updates: Regularly update firmware to access new features and bug fixes.
