Description
Bently 3500/42E
Technical Specifications:
- Module Form: Full‑height 3500 rack slot module
- Number of Input Channels: 4 configurable channels
- Supported Sensor Types: Eddy‑current proximity probes, seismic velocity sensors, acceleration sensors
- Configurable Measurement Modes: Radial Vibration, Thrust Position, Eccentricity, Differential Expansion, Velocity, Acceleration
- Alarm Setting: Independent Alert and Danger alarm threshold for each channel
- Relay Output: Multi‑channel configurable alarm relay contacts
- Recorder Output: 4‑20 mA analog recorder output per channel
- Communication Interface: Communicates through 3500 rack back‑plane to 3500 gateway module
- Hot‑Swap Support: Module can be inserted and removed while rack remains powered
- Operating Temperature: ‑30 °C ~ +65 °C
- Storage Temperature: ‑40 °C ~ +85 °C
- Humidity: 5‑95% RH non‑condensing
- Power Consumption: Maximum 12 W
- Fault Diagnosis: Onboard self‑diagnosis for module hardware, sensor open‑circuit, short‑circuit fault detection Functional Features:
- Multi‑channel multi‑mode configurable design, single module fulfills multiple measurement requirements including shaft vibration, thrust position, casing vibration and acceleration.
- Complete sensor fault detection for proximity and seismic sensor loops, reports Not‑OK fault status upon open‑circuit, short‑circuit conditions.
- Independent Alert and Danger alarm threshold for each channel, supports machinery protection trip logic configuration.
- Per‑channel 4‑20 mA recorder analog output sends measured value to external DCS or recording device.
- Hot‑swap capability allows module replacement without rack power‑off and without interrupting other running monitor channels.
- Front‑panel LED indicator for channel status, alarm status and module health for fast on‑site troubleshooting.
- Software parameter configuration via 3500 rack configuration software, no hardware jumper modification required.
- Rich auxiliary measurement data including gap voltage, 1X amplitude and phase, 2X amplitude and phase for machinery fault diagnosis. Application Scenarios: Comprehensive protection monitoring for compressors, steam turbines, gas turbines, large fans and pump sets; mixed measurement points of shaft‑proximity and casing seismic sensors; critical rotating machinery safety protection system; machinery fault‑diagnosis data acquisition for System‑1 software platform. Performance Parameters: Measurement accuracy ±0.1% full‑scale; high‑resolution sampling; fast alarm response; high MTBF for continuous industrial operation; strong anti‑interference for cabinet environment. Material Composition: Multi‑layer digital‑analog mixed‑signal PCB board; industrial‑grade signal‑processing chip; relay contact components; metal module front‑panel; plastic module frame; gold‑plated back‑plane edge connector. Structural Characteristics: Full‑height module form factor matching 3500 rack slot; metal front‑panel with status LED indicators; rear gold‑plated edge connector connects to rack back‑plane; front removable wiring terminal block for sensor signal input and relay output connections. Working Principle: Sensor analog signals enter module through front‑side terminal block. Onboard circuit performs signal conditioning, filtering and high‑speed analog‑to‑digital conversion. Digital processor executes configured measurement algorithm, compares measured value with preset Alert and Danger threshold to trigger alarm relay action. Measured data transfers through rack back‑plane to communication gateway for upper‑system access. Recorder circuit converts digital measured value into 4‑20 mA analog output. Built‑in self‑diagnosis circuit monitors hardware health and sensor‑loop status continuously. Installation Requirements:
- Insert module into designated full‑height slot inside 3500 series rack, push module fully home until rear edge connector firmly engages rack back‑plane.
- Lock module front‑panel fastening screws to guarantee reliable mechanical and electrical connection.
- Connect sensor input wiring, relay output wiring and recorder output wiring onto front removable terminal block strictly following wiring diagram.
- Complete channel‑mode selection, range and alarm‑threshold configuration using official 3500 rack configuration software.
- Confirm rack power supply works normally, observe front‑panel LED status after power‑on. Usage Notes:
- Hot‑swap operation only applies to module insertion‑removal. Do not touch rear edge connector when rack remains powered.
- All channel configuration parameters must be downloaded to rack before formal protection function activation.
- Do not exceed maximum contact rating of alarm relay outputs. External relay should be added for heavy‑load driving.
- Regularly inspect terminal‑block screw tightness during overhaul period to prevent loose‑contact signal fault.
- Do not open module housing. Internal components cannot be serviced on‑site. Replace whole module upon hardware failure.
