Bently 3500/40M 135489-04

Description

• Technical Specifications
  • Channel and Sensor Compatibility: It is a four-channel module that accepts input from 1 to 4 Bently Nevada proximity transducers. The standard I/O input impedance is 10 kΩ, and the effective impedance of three bussed TMR I/O channels wired in parallel to one transducer is 50 kΩ.
  • Measurement Sensitivity: Sensitivity varies by monitored parameter. It reaches 3.94 mV/μm or 7.87 mV/μm for radial vibration, thrust position and eccentricity. For differential expansion, it is 0.394 mV/μm or 0.787 mV/μm, while for REBAM, it is 40 mV/μm or 80 mV/μm.
  • Power Parameters: It provides a -24 VDC power supply for connected transducers, with a typical power consumption of 7.7 watts that matches the power distribution system of the 3500 series rack.
  • Output Characteristics: It is equipped with one coaxial connector per channel for buffered transducer outputs, and the fixed output impedance is 550 Ω to ensure stable signal transmission.
  • Physical and Environmental Attributes: The module weighs 0.201 kg, and its shipping weight is 2 kg. The operating temperature range spans from -40 °C to +85 °C, and the storage temperature ranges from -50 °C to +125 °C. It meets NEMA 4 and IP65 environmental protection standards, enabling it to resist harsh industrial conditions.
  • Communication Protocol: It supports multiple communication protocols including Modbus and RS485, which facilitates seamless data transmission and integration with various industrial control systems.
• Function Features
  • Dual Internal Design: The integration of internal barriers and internal terminations eliminates the need for external terminal blocks. This design not only simplifies on-site installation and wiring procedures but also reduces signal interference and connection failures, improving the overall reliability of the monitoring system.
  • Configurable Multi-parameter Monitoring: Each channel can be programmed via 3500 rack configuration software. Channels operate in pairs, allowing the module to perform up to two monitoring functions simultaneously. Channels 1 and 2 can execute one function, while channels 3 and 4 can handle the same or another function, covering a variety of key mechanical parameters.
  • Dual-level Alarm Configuration: Users can set alert setpoints for each active static value derived from signal conditioning. They can also configure danger setpoints for any two of the active static values. This dual-level alarm mechanism ensures that different degrees of equipment abnormalities are promptly identified and addressed.
  • Comprehensive System Compatibility: It integrates seamlessly with the 3500 series rack system through the backplane. It supports coordination with other modules in the rack and enables hot-swapping. This feature allows module replacement or maintenance while the rack is powered on, minimizing system downtime.
  • High-speed Signal Conditioning: Every channel quickly conditions the received sensor signals into measurable static values. This process filters out noise and interference in the raw signals, ensuring the accuracy and reliability of the measured data for subsequent alarm judgment and equipment condition analysis.
• Application Scenarios
  • Power Generation Industry: It is extensively used in thermal, hydroelectric and nuclear power plants to monitor steam turbines, generators and feedwater pumps. It tracks rotor radial vibration and thrust position, detecting faults such as rotor imbalance and bearing wear early to avoid large-scale power outages.
  • Oil and Gas Industry: It is deployed on offshore drilling rigs, pipeline compressors and gas turbines. It adapts to high-pressure, corrosive and variable-temperature marine and onshore environments, monitoring rotating component parameters to prevent equipment damage caused by pipeline blockages or rotor misalignment during extraction and transportation.
  • Petrochemical Industry: It is installed on reciprocating compressors, gearboxes and reaction tower auxiliary equipment in chemical plants. It monitors differential expansion and shaft eccentricity, helping to spot seal leakage and valve wear at an early stage and ensuring the continuous and safe operation of chemical production processes.
  • Marine Industry: It is applied to ship propulsion systems, marine turbines and shipboard pumps. It complies with maritime certification standards and monitors the operating status of key rotating machinery under high-humidity and salt-laden conditions, safeguarding the safety and stability of ship navigation.
  • General Manufacturing Industry: It is used to monitor industrial pumps, centrifuges, fans and extruders in manufacturing workshops. It provides real-time data on equipment vibration and position, guiding maintenance personnel to perform targeted maintenance, reducing unexpected production halts and improving overall production efficiency.