Bently Nevada 145988-02 3500/65 Temperature Monitor Module

Product Description

The 145988-02 (3500/65) module from Bently Nevada is a high-capacity temperature input card developed for integration within the 3500 Machinery Protection System. It is designed to collect and process temperature signals from multiple sensing points on critical rotating equipment, enabling continuous thermal condition assessment.

This module supports mixed sensor configurations, allowing simultaneous connection of RTDs and isolated-tip thermocouples. It converts analog temperature signals into digital data for evaluation within the 3500 rack, where alarm thresholds and logic functions are applied to protect machinery from thermal stress or failure.

Technical Specifications

• Model: 145988-02 (3500/65)

• Series: Bently Nevada 3500 System

• Module Type: Temperature Monitoring Module

• Input Capacity: 16 independent temperature channels

• Supported Sensor Types:

• Resistance Temperature Detectors (RTDs)

• Isolated-tip thermocouples

• Measurement Capability: Multi-point temperature acquisition

• Alarm Features:

• Configurable high/low temperature alarms

• Sensor fault detection (open/short circuit)

• Signal Processing: Continuous data acquisition with internal diagnostics

• System Compatibility: Fully compatible with 3500 rack architecture

• Mounting: Standard 3500 rack slot installation

• Application Scope: Turbines, compressors, motors, and auxiliary systems

Key Functional Characteristics

• High channel density allows monitoring of multiple thermal points within a single module

• Supports hybrid sensor configurations for flexible field deployment

• Built-in alarm management improves response to abnormal temperature conditions

• Designed for continuous operation in high-reliability environments

• Seamless integration with other 3500 protection and monitoring modules

Application Areas

• Gas and steam turbines in power generation facilities

• Compressors and pumps in oil and gas processing

• Industrial rotating equipment requiring thermal protection

• Balance-of-plant systems where temperature trending is critical

FAQ

Can RTDs and thermocouples be used at the same time?
Yes, the module supports mixed input configurations, enabling both RTDs and isolated thermocouples within the same unit.

How are alarms managed in the system?
Alarm limits are configured within the 3500 system software. The module continuously compares measured values against these thresholds and reports status to the control system.

Is this module suitable for safety-critical applications?
It is commonly deployed in machinery protection systems where continuous monitoring and early fault detection are required.