Description
The
Bentley Nevada 135489-04 is a high-reliability
proximitor I/O module designed for the
3500 Mechanical Health Monitoring System, specializing in real-time vibration and position monitoring of rotating machinery. With
4 input channels, it interfaces with proximity transducers to convert raw signals into conditioned voltage outputs for analysis. The module features
internal barriers and terminations, eliminating the need for external safety components and simplifying installation in hazardous environments. It supports
intrinsic safety certifications (e.g., ATEX, IECEx), ensuring compliance with global standards for explosive atmospheres.
Parameter |
Specification |
Input Channels |
4 (proximity transducers) |
Signal Type |
Proximity sensor signals (e.g., 3300 XL) |
Output |
Voltage (conditioned for alarms/control) |
Power Supply |
24 V DC |
Operating Temperature |
-40°C to +85°C |
Storage Temperature |
-40°C to +70°C |
Hazardous Area Certification |
ATEX/IECEx (Zone 2), CSA (Class I, Div 2) |
Dimensions |
16 cm × 16 cm × 12 cm |

- Intrinsic Safety: Internal barriers isolate the module from external hazards, reducing installation complexity in explosive zones.
- Simplified Integration: Built-in terminations minimize wiring requirements, speeding up commissioning.
- Accurate Signal Conditioning: Converts raw proximity sensor data into precise measurements for vibration, eccentricity, and thrust position.
- Wide Environmental Tolerance: Operates reliably in extreme temperatures and harsh industrial conditions.
Industries:
- Oil and gas refining
- Power generation (turbines, generators)
- Chemical processing
- Heavy machinery manufacturing
Case Study:
A petrochemical plant in Saudi Arabia deployed the 135489-04 to monitor compressor vibrations in a Zone 2 hazardous area. The module’s intrinsic safety design and real-time alerts reduced unplanned downtime by 30%, enabling predictive maintenance and cost savings.
Compared to standard I/O modules:
- Enhanced Safety: Native intrinsic safety certification eliminates the need for external barriers.
- Space Efficiency: Internal terminations reduce panel space requirements by 40%.
- Temperature Range: Supports broader operational temperatures (-40°C vs. typical -20°C).
- System Compatibility: Ensure compatibility with Bentley Nevada’s 3500 rack and System 1 software.
- Environment: Opt for this module if working in hazardous zones requiring ATEX/IECEx compliance.
- Channel Needs: Choose 4-channel configurations for machinery with multiple critical measurement points.
- Installation: Follow Bentley Nevada’s guidelines for grounding and wiring to avoid signal interference.
- Safety Compliance: Verify hazardous area certifications match local regulations.
- Maintenance: Regularly inspect connectors and firmware updates to ensure optimal performance.
Shanxi Xinyeda International Trade Co., Ltd. offers
Bentley Nevada 135489-04 and comprehensive automation solutions. Visit
www.xydcontrol.com or contact us for technical support and global logistics.
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