Product Overview

• PN: 125680-01
• Brand: Bently Nevada
• Series: 3500 Machinery Protection System
• Type: 3500/40M Proximitor I/O Module
• Function: 4-channel monitor module matched with eddy current proximity probes, used to measure radial vibration, axial thrust displacement, differential expansion and eccentricity of turbines, compressors and generators. It judges equipment abnormal conditions via preset alarm thresholds and uploads real-time operating data to the upper monitoring system.

Core Features

1. Four configurable input channels supporting paired channel function setting
2. Built-in internal termination design, simplifying cabinet wiring and reducing fault points
3. Supports TMR triple redundant configuration to improve system operation safety
4. Provides 4-20mA analog output and two-stage relay alarm output
5. Hot-swappable design with front LED indicators for rapid fault diagnosis

Technical Specifications

• Channel Quantity: 4
• Supported Sensor: Eddy current proximity probe
• Power Consumption: 4.6W
• Operating Temperature: 0℃ ~ 65℃
• HS Code: 8538900000
• Certifications: CE
• Product Status: Discontinued, supplied with tested surplus units

Compatibility

• Matched Device: Bently Nevada 3500 series rack
• Supporting Software: 3500 rack configuration software, System 1 platform
• Not Compatible: Third-party monitoring racks and non-proximity monitoring modules

Application

1. Vibration and axial displacement safety monitoring for large rotating units in power and petrochemical industries
2. Early fault warning and interlock protection for bearings and rotors
3. Maintenance replacement and technical renovation of old 3500 machinery protection systems

Our Advantage

• Completed sensor signal calibration and function aging test before delivery
• 12-month warranty provided for tested surplus modules