Product Overview

• PN: 3500/65 145988-02
• Brand: Bently Nevada (Baker Hughes)
• Series: 3500 Turbomachinery Machinery Protection System
• Type: Multi-point Temperature Monitoring Front Module

• Function: Dedicated temperature monitoring unit for 3500 rack chassis. It accesses up to 16 temperature signals simultaneously, compatible with 3-wire/4-wire RTD and isolated tip thermocouple sensors. Users set Alert and Danger threshold values via official configuration software; the module judges temperature deviation and outputs alarm interlock signals. Measured data is uploaded to rack communication modules for centralized viewing and fault recording, supplementing vibration and displacement monitoring to realize comprehensive equipment condition protection.

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Core Features

• 16 independent configurable input channels, mixed RTD and thermocouple inputs allowed in one module
• Supports TMR triple modular redundant installation with three adjacent cards to eliminate single-point failure risk
• Built-in comprehensive self-diagnosis to detect open circuit, short circuit and sensor wiring faults
• Front panel LED indicators display module running status and channel alarm status
• Hot-swappable under dual redundant rack power supply without system shutdown
• Wide temperature measurement range covering low-temperature bearing detection and high-temperature casing monitoring

• Matches exclusive rear I/O terminal board for field sensor wiring termination

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Technical Specifications

• Typical Power Consumption: 3 W
• Supported Sensors: 3/4-wire RTD, isolated tip thermocouple
• Operating Temperature: -40℃ ~ +85℃
• Dimension: 241.3 × 24.4 × 241.8 mm
• Net Weight: 0.6 kg
• HS Code: 8538900000
• Certifications: CE, UL

• Product Status: OEM discontinued; brand new original sealed and fully inspected refurbished modules available

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Compatibility

• Matching Rear I/O Module: Special rear termination board exclusive for 3500/65
• Applicable Chassis: All 3500/05 12-slot and 14-slot rack frames
• Compatible Software: 3500 rack configuration program, System 1 predictive maintenance platform

• Cooperative Modules: Works with 3500/42M vibration & displacement monitor to form complete protection system

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Application

• Multi-point bearing bush, stator and casing temperature monitoring for steam turbines, gas turbines and compressors in power and petrochemical industries
• Auxiliary temperature protection for large rotating machinery to prevent overheating damage
• Spare replacement and system expansion upgrade for existing 3500 series monitoring racks