• PN：135489-01
• Model：3500/42M
• Brand：Bently Nevada (Baker Hughes)
• Series：3500 Machinery Protection System
• Type：4-Channel Proximity & Seismic Vibration Monitoring Module (Built-in Intrinsic Safety Barrier)

• Function：Collects radial vibration, axial displacement and casing vibration signals via eddy current probes or accelerometers. With integrated intrinsic safety barriers, it can be directly connected to field sensors in explosive hazardous areas without external safety barriers, supports alarm threshold setting and machinery safety interlock protection.

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Core Features

1. 4 universal configurable channels, compatible with proximity probes and seismic accelerometers
2. Built-in intrinsic safety barrier, meets explosion-proof standards for oil, gas and chemical hazardous zones
3. Single-slot hot-swappable design, supports TMR triple redundant safety configuration
4. Front panel status LEDs for power, channel fault, alert and danger alarm indication
5. High measurement accuracy up to ±1% full scale, supports maximum 30kHz high-frequency vibration sampling

6. Onboard hardware self-diagnosis to detect sensor open circuit, short circuit and module failure

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Technical Specs

• Input: Eddy current proximity transducer / accelerometer
• Channel quantity: 4 channels
• Built-in intrinsic safety barrier
• Power supply: Backplane power from 3500 rack
• Operating temperature: -30℃ ~ +65℃
• Dimension: 241.3 × 24.4 × 24.4mm
• Net weight: 0.46kg
• HS Code: 8537101190

• Certification: CE, UL certified

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Compatibility

• Applicable device: Standard 14-slot 3500 series monitoring rack
• Matching modules: 3500/20 rack interface, 3500 series power supply modules
• Matching sensors: 3300 XL proximity probes, seismic velocity sensors, accelerometers

• Not compatible: 3300 series rack, third-party PLC/DCS backplane

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Application

• Vibration & displacement safety monitoring for turbines, compressors, generators in hazardous industrial areas
• On-line condition monitoring and fault early warning for petrochemical, oil & gas, thermal power units
• System renovation and spare replacement for explosion-proof TSI monitoring cabinets

• Predictive maintenance and machinery trip interlock protection for rotating equipment

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Our Advantage

• Full channel calibration, insulation and intrinsic safety performance test before delivery
• 12-month warranty for new original and fully tested surplus modules
• Global DHL/Fedex door-to-door delivery, FOB Xiamen available
• Free technical support for sensor wiring, hazardous area parameter configuration and fault troubleshooting