Bently Nevada 3500/42M 140734-02 Proximitor Seismic Monitor Module

Product Description
3500/42M, part number 140734-02, is a 4-channel Proximitor and Seismic monitoring module of Bently Nevada 3500 machinery protection system, owned by Baker Hughes. It accepts input signals from proximity probes, velocity and acceleration seismic transducers for rotating machinery health monitoring. The module performs high-precision signal conditioning, measurement calculation, alarm threshold comparison and trip logic. It supports radial vibration, thrust position, differential expansion, eccentricity, shaft absolute vibration and REBAM measurement. Each channel provides buffered coaxial output and 4-20mA recorder signal. It adopts rack slot installation in 3500 chassis, with built-in hardware self-diagnosis, widely used as spare protection card for turbines, compressors and large rotating equipment.

Key Functions

• 4 independent channels, compatible with proximity transducer and seismic sensors
• Measure shaft vibration, thrust position, differential expansion, eccentricity and casing vibration
• User programmable alarm and trip thresholds for warning and machine protection
• Per-channel buffered coaxial signal output for external oscilloscope observation
• 4-20mA analog recorder output for DCS trend recording
• High measurement accuracy, typical ±0.33% full scale, phase error ≤3°
• Built-in continuous self-diagnosis for sensor fault, module hardware and power failure
• Communicate with 3500 rack controller, upload status and alarm data
• Operating temperature range: -30℃ ~ +65℃, low power consumption ~7.7W

Application Scenarios

• Steam turbine, gas turbine, centrifugal compressor machinery protection system
• Power plant, oil & gas, petrochemical large rotating equipment online monitoring
• Pipeline compressor, blower, pump vibration and shaft position safety protection
• 3500 rack system spare parts replacement, equipment retrofit and upgrade project

FAQ

Q: Who manufactures 3500/42M 140734-02?
A: Bently Nevada (Baker Hughes), USA.

Q: How many measurement channels does this module have?
A: 4 channels, support both proximity and seismic transducer inputs.

Q: What system does it belong to?
A: Bently Nevada 3500 series machinery protection system for rotating equipment.