Description

Technical Specifications

• Product Model: 3500/42M-01-00
• Brand: Bently Nevada
• Warranty: One Year
• Input Voltage: Powered through the 3500 Machinery Protection System backplane
• Operating Temperature: 0°C to +65°C
• Storage Temperature: -40°C to +85°C
• Response Time: Signal update rate ≤100 ms
• Protection Class: Installed in a 3500 system rack (system enclosure protection dependent)
• Accuracy Class: Typical measurement accuracy ±0.33% to ±1% of full scale (depending on measurement type)
• Output Frequency: Continuous real-time vibration and position monitoring
• Rated Current Range: Independent 4–20 mA analog output per channel
• Communication Interface: 3500 Rack Backplane, Buffered Transducer Outputs, 4–20 mA Outputs
• Supported Protocols: Native Bently Nevada 3500 rack communication
• Overload Capacity: Short-circuit protected buffered outputs and recorder outputs
• Dimensions: 241.3 × 24.4 × 241.8 mm (Monitor Module)
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Application Scenarios

Turbine Protection Systems

The 3500/42M-01-00 continuously monitors shaft vibration, axial position, and differential expansion in steam and gas turbines. Real-time alarm processing enables operators to detect rotor instability, bearing wear, and excessive shaft movement before trip conditions occur, improving equipment reliability during continuous operation.

Centrifugal Compressors and Process Machinery

For compressors operating in refineries, petrochemical plants, and gas processing facilities, the monitor evaluates vibration signatures and shaft displacement from proximity and seismic transducers. Maintenance teams can identify imbalance, misalignment, mechanical looseness, or bearing deterioration early, reducing the risk of unexpected outages.

Power Generation Equipment

The module provides comprehensive protection for generators, feedwater pumps, and large electric motors by monitoring vibration and shaft dynamics. Independent alarm thresholds allow operators to respond quickly to changing machine conditions while maintaining compliance with plant protection strategies