Product Short Description

350025-01-01-00 (front main module) and 125800-01 (rear termination module) form a complete original 3500/20 System Interface Module set manufactured by Bently Nevada (Baker Hughes USA). It is the core communication and data gateway component of the 3500 Series Machinery Protection & Condition Monitoring System.

This complete set undertakes system internal bus data aggregation, external communication conversion, status monitoring, system clock management and external signal wiring functions. It realizes two-way data interaction between internal 3500 system monitoring bus and upper computer System 1 diagnostic platform, DCS, PLC and SCADA systems.

Description

Basic Identification Parameters

  • Brand: Bently Nevada
  • Complete Part Number Set: 350025-01-01-00 (Front Module) + 125800-01 (Rear Termination Module)
  • System Matching Model: 3500/20 System Interface Communication Module
  • Product Type: System Gateway Communication Interface + Rear External Termination Module Set
  • Origin: United States
  • Total Product Weight: 0.58 kg
  • Factory Warranty Period: 12 months original factory warranty
  • Overall Dimensions: 241.3 mm × 24.4 mm × 99.1 mm
  • Mounting Mode: Standard 19-inch EIA industrial rack plug-in installation, installed in dedicated interface slot of 3500 system rack
  • Protection Grade: IP20
  • Certifications: CE, UL, CSA, ATEX/IECEx Hazardous Area Certification, API 670 Compliant

Electrical Specifications (Front Module 350025-01-01-00)

  • System Power Supply: 18–36 V DC, supplied by 3500 main rack power supply
  • Total Power Consumption: ≤4.8 W
  • Internal Communication: Dedicated high-speed 3500 system internal monitoring bus
  • External Communication Interfaces:
    • RS232 Serial Communication Port
    • RS485 Serial Communication Port
    • 10/100 Base-T Ethernet Modbus TCP Communication Port
  • Communication Isolation Level: 2500 Vrms external port-to-system bus galvanic isolation
  • System Functions: Internal bus data aggregation, system clock synchronization, module status management, alarm event recording, data packaging upload
  • Status Indication: Power OK, Communication OK, Fault, Alarm status indicator lights
  • Response Time: Internal data refresh ≤100 ms

Mechanical & Termination Specifications (Rear Module 125800-01)

  • Matching Front Module: 350025-01-01-00 3500/20 interface front module
  • Structure: Rear plug-in external termination module
  • Terminal Type: Green pluggable anti-loosening screw terminal blocks
  • Terminal Functions: External communication cable wiring, system status signal wiring, dry contact status output wiring
  • Internal Connection: Standard gold-plated rear bus connector, stable contact with front module
  • Wiring Mode: Independent external termination wiring, separates field communication cables from internal system bus

Environmental Specifications

  • Operating Temperature Range: -40 ℃ to +70 ℃
  • Storage Temperature Range: -51 ℃ to +85 ℃
  • Operating Humidity: 0%–95% RH, non-condensing
  • Shock Resistance: 10 g peak anti-vibration performance
  • Electromagnetic Compatibility: Fully meets industrial EMC anti-interference standards, adapts to strong EMI industrial sites

Core Functional Features

  1. Complete Front + Rear Integrated Set Design

    Front communication main module + rear external termination module complete matching set, seamless electrical and mechanical connection, no compatibility problems.

  2. Multi-Mode External Communication Gateway Function

    Integrates RS232, RS485 and Ethernet Modbus TCP triple communication modes, realizes flexible connection with various upper computer control systems.

  3. System Internal Bus Data Centralized Management

    Aggregates all monitor module data (vibration, thrust, temperature, process variable, speed, alarm, trip) from entire 3500 rack internal bus.

  4. Full Galvanic Isolation Communication Architecture

    Complete external port-to-system isolation thoroughly suppresses ground loop interference, common-mode noise and surge impact on communication lines.

  5. Real-Time System Status Monitoring & Diagnosis

    Built-in complete self-diagnosis function, real-time monitoring of system power, communication, module operating status, automatically uploads fault information.

  6. External Termination Rear Module Design (125800-01)

    Independent external rear terminals, convenient for field communication cable wiring, inspection and maintenance, clearly separates communication wiring from signal wiring.

  7. Plug-in Hot-Swap Structure

    Supports online plug and replacement without powering down the entire monitoring system, greatly reduces maintenance downtime.

  8. Complete Failsafe Protection Logic

    Automatically enters safe state under communication abnormal, power failure and module fault conditions, avoids system misoperation and false alarms.

  9. System Clock Synchronization Management

    Provides unified clock benchmark for all monitoring data and event records, ensures accurate time stamping of fault and alarm events.

Applicable Application Scenarios

350025-01-01-00 + 125800-01 complete set is professionally used as system communication gateway & data upload interface unit for 3500 Series rotating machinery online monitoring & protection systems, widely applied in:
  • Power generation industry: Steam turbines, gas turbines, turbo-generator units, combined cycle power plants
  • Petroleum & petrochemical industry: Centrifugal compressors, process pumps, fans, offshore platform rotating machinery
  • Chemical industry: Large high-speed compressors, reciprocating machinery, high-speed gearboxes
  • Metallurgy, cement & mining industry: Rotary kilns, grinding mills, large fans, heavy rotating equipment
  • Water conservancy & wastewater treatment: Large vertical pumps, circulating water pump units
  • Marine industry: Ship propulsion machinery and auxiliary rotating power equipment
  • Hazardous area industrial sites with ATEX/IECEx certification requirements
  • OEM machinery manufacturing and industrial predictive maintenance condition monitoring systems

System Compatibility

  • Fully compatible with Bently Nevada 3500 series full monitoring system: 3500/05 rack, 3500/15 power supply modules, all monitor modules, I/O modules, relay modules and keyphasor modules
  • Perfectly matches all 3300 XL NSv series sensors, probes and cables you previously queried
  • Seamlessly connects to System 1 diagnostic analysis platform, PLC, DCS and SCADA control systems via RS232/RS485/Ethernet Modbus TCP
  • Compatible with official 3500 rack configuration software V3.3 and above versions
  • Fully complies with API 670 international machinery protection standard requirements

Reviews

There are no reviews yet.

Be the first to review “Bently 350025-01-01-00 125800-01”

Your email address will not be published. Required fields are marked *

View Related Products