Description

The Bently Nevada 3500/45 Position Monitor is a high-performance, four-channel module designed for the 3500 Series Machinery Protection System. It is engineered to provide continuous, online monitoring of shaft axial position and displacement in critical rotating machinery, including steam and gas turbines, compressors, and large pumps. By comparing input signals from proximity probes against user-defined alarm setpoints, the module facilitates reliable machinery protection and shutdown logic.

Features

• Four independent monitoring channels for comprehensive position measurement.
• Compatible with standard Bently Nevada proximity probe systems (e.g., 3300 series).
• Provides Alert and Danger relay outputs for integration into plant safety and shutdown systems.
• Includes buffered transducer outputs for external signal analysis and diagnostic troubleshooting.
• Features front-panel LED indicators for quick visual status of OK, Bypass, Alert, and Danger conditions.
• Configurable via 3500 Rack Configuration Software to match specific machine requirements.
• Designed for compliance with API 670 standards for machinery protection systems.

Applications

This module is primarily used in industrial environments to monitor axial position on critical turbomachinery. It is essential for detecting thrust bearing wear or failure, ensuring the integrity of rotating equipment in power generation, petrochemical, and oil and gas facilities.

Technical Specifications

Installation Guidelines

• The 3500/45 module is designed for installation in a standard 3500 series rack.
• Ensure the rack is powered down before inserting or removing the module to prevent electrical damage.
• Use proper ESD precautions when handling the module to protect internal circuitry.
• Ensure all signal wiring is shielded and properly grounded to minimize EMI/RFI interference.
• Verify that the proximity probe cabling is routed away from high-voltage power lines.
• Configure the module using the 3500 Rack Configuration Software after physical installation and before system commissioning.

FAQ

What does the 3500/45 monitor?
It monitors shaft axial position and displacement using proximity probe inputs to ensure the machinery operates within safe mechanical limits.

Is this module compatible with other 3500 series components?
Yes, it is designed to integrate seamlessly within the 3500 rack system, allowing for combined monitoring strategies with other protection modules.