Brief Product Description

BENTLY 3500/32-01-01, composed of assembly parts 149986-02 and 125720-02, is a high-reliability 4-channel programmable relay module for the Bently Nevada 3500 machinery protection and condition monitoring system. Fully compliant with API 670 industry standards, this rack-mounted module converts machinery vibration, speed and temperature monitoring data into reliable relay alarm and trip outputs. It supports independent channel configuration, flexible alarm voting logic and fault judgment mechanisms to eliminate false trips and missed trips for rotating equipment. Built with industrial-grade circuit protection, continuous self-diagnostics and strong EMC immunity, it ensures 24/7 stable operation in power plants, petrochemical and heavy industrial environments. Fully tested surplus and refurbished BENTLY 3500/32-01-01 modules are available for legacy machinery monitoring system maintenance, replacement and retrofit projects.

Core Product Functions

• Four independent programmable relay output channels for equipment alarm and trip protection control
• Supports flexible alarm drive logic and multi-channel voting functions to avoid false and missing protection actions
• Converts real-time machinery monitoring data (vibration, speed, temperature) into switch control signals
• Real-time system status monitoring including alert, danger and module fault state judgment
• Built-in comprehensive hardware self-diagnosis to detect channel failure, circuit abnormality and communication loss
• Compatible with full series of Bently Nevada 3500 system monitoring cards for integrated logic linkage
• High-precision relay switching performance ensures reliable action of safety interlock loops
• Industrial anti-interference design adapts to high-vibration and high-electromagnetic industrial environments

• Standard rack installation matching 3500 system cabinet structure for quick assembly and maintenance

Application Scenarios

• Bently Nevada 3500 machinery protection and condition monitoring system core relay control
• Thermal power plant steam turbine, gas turbine and generator unit safety monitoring systems
• Petrochemical, oil & gas field rotating machinery vibration protection and interlock control
• Industrial large-scale fans, pumps, compressors and high-speed rotating equipment monitoring
• Process industry critical machinery online condition monitoring and early warning protection platforms
• Legacy BENTLY 3500 system relay module failure replacement, maintenance and system retrofits

FAQ (Frequently Asked Questions)

• Q: Relay output disorder or false alarm after installing 3500/32-01-01?
  A: Check channel logic configuration and voting parameter settings, verify rack communication status, inspect relay circuit wiring, and confirm consistency of monitoring threshold parameters.
• Q: Does BENTLY 3500/32 support hot-swap replacement?
  A: Hot swap is not recommended. Disable relevant protection interlocks and cut off rack power before replacement to prevent accidental equipment trip.
• Q: What is the function of 149986-02 and 125720-02?
  A: These two part numbers constitute the complete 3500/32 relay module assembly, responsible for system logic judgment and relay signal output.
• Q: What industry standards does this module comply with?
  A: It strictly complies with API 670 international machinery protection system standards for industrial rotating equipment safety monitoring.
• Q: Is BENTLY 3500/32-01-01 available for new projects?
  A: This legacy relay module is end-of-life for new installations. Only fully tested surplus and refurbished units are supplied for existing 3500 system maintenance and retrofits.