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

This Proximitor monitor module provides continuous vibration monitoring for rotating machinery protection. It accepts input from eddy-current proximity probes and delivers reliable shaft displacement measurements. The Bently Nevada 3500/40-02-01 supports dual-channel configuration for redundant monitoring of critical assets. This advanced module ensures early detection of bearing wear and rotor instability.

Physical Dimensions and Installation Specifications

This Proximitor monitor module measures 241 millimeters in width, 52 millimeters in depth, and 152 millimeters in height. The unit weighs approximately 1.80 kilograms for secure chassis mounting. It installs directly into the Bently Nevada 3500 rack using a dedicated backplane connector. The front panel includes LED indicators for channel status and alarm conditions. Additionally, the module features a removable terminal block for field wiring connections.

Input Specifications and Probe Compatibility

The Bently Nevada 3500/40-02-01 accepts inputs from 5mm and 8mm eddy-current proximity probes. It supports both 3300 and 7200 series probe families with full compatibility. The module provides a probe drive frequency of 100 kilohertz for optimal signal quality. It supplies a nominal -24 VDC power output for the connected transducers. The input impedance matches the standard Bently Nevada probe specifications.

Measurement Parameters and Signal Processing

This Proximitor monitor module measures shaft radial vibration and axial position accurately. It also monitors differential expansion and eccentricity for comprehensive protection. The module processes input signals with a frequency range from 10 hertz to 10 kilohertz. It provides both filtered and unfiltered output signals for diagnostic purposes. A built-in integrator converts acceleration signals to velocity measurements when required.

Output Configurations and Alarm Capabilities

The Bently Nevada 3500/40-02-01 delivers two 4 to 20 mA analog outputs per channel. It provides relay outputs for alarm and danger threshold signaling. The module offers configurable time delays for alarm suppression during startup. Each channel includes independent setpoints for alert and danger conditions. The buffered output connectors allow remote access to raw transducer signals.

Component Architecture and Build Quality

This Proximitor monitor module contains 185 individual components on a six-layer PCB. Key parts include precision signal conditioners, analog-to-digital converters, and isolation amplifiers. The board uses low-noise components for superior measurement accuracy. All critical circuits incorporate temperature compensation for stable performance.

Energy Storage and Power Characteristics

The Bently Nevada 3500/40-02-01 includes a 2,200-microfarad capacitor bank for signal filtering. This storage reduces power supply noise for consistent measurement results. The module draws 300 milliamperes from the 24 VDC rack supply. A dedicated voltage reference maintains stable operation across temperature variations.

Technical Data Summary

System Integration and Application Scope

This Proximitor monitor module integrates seamlessly with Bently Nevada 3500 monitoring systems. It protects turbines, compressors, and other critical rotating machinery. Consequently, the Bently Nevada 3500/40-02-01 provides essential vibration monitoring for asset protection programs.