Product Overview

• PN: 3500/20, part code: 125744-02
• Brand: Bently Nevada (Baker Hughes)
• Series: 3500 Machinery Protection System
• Type: Rack Interface Module (RIM)

• Must be installed in Slot 1 next to rack power supply, serves as the main communication interface for the entire 3500 rack, realizes rack parameter configuration, machinery monitoring data uploading and connection with external communication processors

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Core Features

• Equipped with front-panel RS232 serial port, supports 38.4kbps baud rate for local rack configuration and debugging
• Compatible with TDIX, DDIX, TDXnet external communication modules to upload transient vibration data to System 1 monitoring software
• Built-in hardware self-diagnosis circuit, OK, TX/RX status LEDs for quick fault location
• Standard single-slot hot-swappable design, online replacement without stopping monitoring tasks
• Optional TMR redundant version for triple modular redundant safety control scenarios

• Does not occupy the safety monitoring loop, module failure will not trigger machinery protection shutdown

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Technical Specs

• Power supply: 18~36VDC, typical power consumption 4.75W
• Communication interface: RS232, internal rack high-speed bus
• Operating temperature: -30℃~+65℃
• Storage temperature: -40℃~+85℃, 5%~95% RH non-condensing
• Net weight: 0.84kg
• Dimension: 242 × 244 × 24mm
• HS Code: 8537101190

• Certification: CE, UL certified

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Compatibility

• Applicable equipment: All standard 3500 series 14-slot monitoring racks
• Matching modules: 3500 series power modules, 3500/40M, 3500/42M vibration monitoring cards, 3500/22M transient data interface module

• Not compatible: Older 3300 series monitoring racks, third-party PLC and DCS backplanes

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Application

• Rack online configuration and parameter downloading for steam turbine, centrifugal compressor monitoring systems
• Real-time vibration, speed, displacement data transmission to System 1 host software
• Fault event recording and abnormal signal uploading for power, petrochemical, metallurgy rotating equipment

• Spare replacement and system maintenance for aging 3500 machinery protection cabinets

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Our Advantage

• Full communication bus stability test and continuous power aging test before delivery
• 12-month warranty for new original and refurbished spare parts
• Global DHL, Fedex door-to-door delivery, FOB Xiamen available
• Free technical support for rack slot installation, serial parameter setting and communication fault troubleshooting