Bently Nevada 3500/40-02-01 Proximity Monitor Module

The Bently Nevada 3500/40-02-01 is a hot-swappable proximity monitor module for the 3500 machinery protection system. It accepts input signals from eddy-current proximity probes to continuously measure shaft radial vibration, axial thrust displacement and rotor clearance of rotating machinery.

This dual-channel module provides sensor power supply, signal conditioning and programmable alarm thresholds. It outputs analog signals and alarm logic, meeting API 670 machinery protection requirements. Widely used for turbomachinery monitoring cabinet maintenance, system expansion and spare parts stocking in energy and petrochemical industries.

Main Specifications

• Brand: Bently Nevada (Emerson)
• Model: 3500/40-02-01
• Product Type: Dual Channel Proximity Monitor Module
• Applicable System: 3500 Series Machinery Monitoring Rack
• Supported Sensor: Eddy current proximity probe system
• Hot Swap: Support live insertion and removal without rack power off
• Signal Output: 4–20mA analog signal and relay alarm logic
• Front Panel: LED indicators for channel status and fault diagnosis
• Operating Temperature: 0°C ~ +60°C
• Installation: Standard slot mounting inside 3500 rack chassis

Core Functions

• Supply power and signal conditioning for eddy-current proximity probes
• Measure shaft radial vibration, axial thrust and rotor clearance parameters
• Calculate peak-to-peak values and generate continuous monitoring data
• Programmable Alert and Danger thresholds with adjustable delay settings
• Built-in sensor fault detection to identify broken wires and probe failures
• Transmit measured data to DCS, historian and monitoring software via rack bus
• Send alarm trigger signals to 3500/32 relay output module for safety interlock
• Front LED indicators display channel status, alarm and fault information
• Hot-swap support allows module replacement during system operation
• Comply with API 670 standard for machinery protection applications

Application Scenarios

• Power plant steam turbine, gas turbine and generator monitoring cabinets
• Oil & gas field centrifugal compressor and expander protection systems
• Petrochemical plant large turbomachinery online monitoring platforms
• Combined cycle power unit shaft vibration and thrust bearing monitoring projects
• Offshore platform hazardous area rotating equipment condition monitoring racks
• Cement plant rotary kiln and coal mill critical machinery monitoring systems
• Mining plant large blowers and heavy-duty rotating equipment protection
• 3500 monitoring rack system upgrading, expansion and module replacement
• Industrial energy plant API 670 compliant machinery protection construction
• Energy industry spare parts stocking for turbomachinery monitoring systems