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SKU: 128240-01

Bently Nevada 128240-01 3500 System Proximitor/Seismic I/O Module

The Bently Nevada 128240-01 is a Proximitor/Seismic I/O Module for the 3500 monitoring system. Designed for high-precision data acquisition from vibration and position sensors, it features external terminations, MODBUS RTU support, and a rugged IP67-rated construction for critical machinery protection.

High-Fidelity Signal Interface for Asset Protection

The Bently Nevada 128240-01 serves as a high-performance Input/Output (I/O) module designed specifically for the 3500/42M Proximitor Seismic Monitor. This module acts as the physical interface between field-mounted sensors and the 3500 monitoring rack, processing critical signals from proximity probes and seismic transducers. Because it utilizes advanced signal conditioning, the 128240-01 ensures that vibration, position, and speed data remain accurate and noise-free. This reliability allows the machinery protection system to make millisecond-decisions regarding emergency trips, effectively safeguarding multi-million dollar turbines and compressors from catastrophic mechanical failure.

Robust Connectivity and External Termination

Engineered for streamlined industrial installation, the 128240-01 supports external terminations to simplify cabinet high-density wiring. This I/O module features a stainless steel reinforced architecture and high-integrity connectors to maintain secure electrical paths in high-vibration environments. Since it facilitates seamless data transfer through standardized protocols, including MODBUS RTU, the module allows for direct communication between the vibration monitoring rack and the facility’s broader Distributed Control System (DCS) or PLC network. This interoperability ensures that operators receive real-time machinery health updates without manual data bridging.

Environmental Durability and Global Compliance

The 128240-01 is built to withstand the rigors of heavy industrial sectors such as oil refining, power generation, and chemical processing. The module design emphasizes environmental resilience, featuring an IP67-rated protection standard against dust and water ingress when properly housed. Furthermore, the unit operates reliably under extreme electromagnetic interference (EMI), which is common in power plant environments. By providing a stable platform for both proximity (eddy current) and seismic (velocity/acceleration) monitoring, this module enhances the longevity of the entire 3500 system architecture while ensuring compliance with stringent safety standards.

Technical Specifications

  • Manufacturer: Bently Nevada (Baker Hughes)
  • Model Number: 128240-01
  • System Series: 3500 Vibration Monitoring System
  • Module Function: Proximitor/Seismic Monitor I/O
  • Termination Type: External Terminations
  • Signal Compatibility: Proximity Probes, Accelerometers, Velocity Transducers
  • Communication Protocol: MODBUS RTU Compatible
  • Construction Material: High-Grade Stainless Steel and Industrial Polymers
  • Environmental Rating: IP67 (Protection against ingress)
  • Dimensions: 2.3 x 11.0 x 24.1 cm
  • Weight: 0.4 kg