3500/45 176449-04 Bently Nevada 4-Channel Position Monitor Front Module Original In Stock

Short Description:

Multi-functional displacement monitoring front card supporting proximity probes,

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Product Detail

Multi-functional displacement monitoring front card supporting proximity probes, LVDT and rotary potentiometer signals, configured for thrust position, differential expansion and valve position measurement, delivers alert/danger alarm and 4-20mA output for turbomachinery protection, tested surplus spare parts for 3500 TSI system

Product Overview

PN: 3500/45, Part No: 176449-04
Brand: Bently Nevada (Baker Hughes)
Series: 3500 Machinery Protection TSI System
Type: 4-Channel Position Monitor Front Module
Function: Full-height front pluggable monitor module designed for precise linear and rotary position measurement. It accepts input signals from eddy current proximity transducers, DC/AC LVDTs, rotary position transducers and rotary potentiometers. Channels are programmed in paired groups (Ch1+Ch2 / Ch3+Ch4) to execute monitoring tasks including axial thrust position, differential expansion, case expansion and valve position. It generates two-stage Alert and Danger alarm logic, transmits real-time measured values via rack backplane bus, and supports 4-20mA analog output to upper DCS and PLC systems for rotating equipment mechanical protection and condition diagnosis.

Core Features

Four independent input channels with flexible paired configuration, supporting up to two distinct measurement functions on one single module
Wide compatibility with multiple position sensors instead of limited to only proximity probes
Front panel BNC buffered signal ports for on-site signal inspection and troubleshooting without system shutdown
Built-in comprehensive self-diagnosis to detect sensor open circuit, short circuit and module communication faults
Hot-swappable rack installation; front LED indicators clearly display power status, running state and channel alarm triggers
Modbus register mapping editable via official rack configuration software for seamless data interconnection with distributed control systems
Complies with API 670 standard and supports TMR triple redundant deployment for high-safety unit protection

Technical Specifications

Channel Count: 4 input channels
Typical Power Consumption: 7.7W~8.5W based on matched rear I/O type
Measurement Accuracy: Within ±0.13% of full scale alarm setpoint
Operating Temperature: -40℃ ~ +85℃
Net Weight: 0.88kg
HS Code: 8538900000
Certifications: CE, SIL2
Product Status: Discontinued original production, brand new original and fully tested refurbished spare parts available

Compatibility

Applicable Rack: All 3500/05 series 12-slot and 14-slot panel mount chassis
Matched Rear I/O Cards: 135137-01 for proximity probe input, 135145-01 for AC LVDT signal termination
Supporting Software: 3500 rack configuration software, System 1 predictive maintenance diagnostic platform
Incompatible Items: Vibration-only monitor rear boards, 3500/40M dedicated proximitor rear modules, non-3500 series third-party rack chassis

Application

Axial thrust bearing position monitoring and protection for steam turbines, gas turbines and centrifugal compressors in power and petrochemical industries
Rotor differential expansion and cylinder case expansion real-time monitoring to prevent rotor stator friction damage
Control valve feedback position acquisition and interlock protection for large rotating units
Spare replacement and function expansion of legacy 3500 machinery protection monitoring racks