BENTLY 136703-01 Monitor Module

BENTLY NEVADA 136703-01 Monitor Module

 

The Bently Nevada 136703-01 is a 3500 Series I/O Module with Internal Barriers, used in the Bently Nevada 3500 Machinery Protection System. It is designed to provide intrinsically safe signal conditioning and interface protection for monitoring transducers in hazardous environments.

Basic Information

• Part Number: 136703-01
• Brand: Bently Nevada (Baker Hughes)
• Series: 3500 System
• Type: Discrete Internal Barrier I/O Module
• Function: Signal interface + intrinsic safety barrier for vibration/monitoring channels

Technical Specifications

• System Compatibility: Bently Nevada 3500 rack system
• Module Type: I/O module with internal barriers
• Function:
  • Provides signal isolation
  • Supports hazardous area (intrinsic safety) applications
• Temperature Range: approx. -35°C to +85°C
• Bandwidth: up to 30 kHz
• Weight: ~0.46 kg
• Mounting: Plug-in rack module (3500 chassis slot)

Key Features

• Built-in intrinsic safety barrier design for hazardous environments
• Protects monitoring system from unsafe field wiring conditions
• High reliability for continuous industrial operation
• Designed for critical machinery protection systems (API 670 compliance)
• Stable signal conditioning for vibration and transducer inputs
• Compatible with Bently Nevada 3500 monitoring architecture

Application Areas

• Gas turbines
• Steam turbines
• Compressors
• Pumps and motors
• Petrochemical plants
• Oil & gas refineries
• Power generation systems
• Heavy rotating machinery monitoring

System Role (Important)

This module is part of the 3500 rack I/O interface layer, and is used when:

• Equipment is installed in hazardous / explosive zones
• Intrinsic safety isolation is required
• Vibration and displacement signals must be safely transmitted into control system

It ensures safe communication between field sensors (probes) and 3500 monitoring modules.

Advantages

• Intrinsically safe design for hazardous environments
• Reduces need for external barrier systems
• High reliability and industrial-grade protection
• Seamless integration with 3500 rack system
• Stable signal conditioning for accurate monitoring
• Long service life in harsh conditions

Precautions

• Must be used only within Bently Nevada 3500 system architecture
• Ensure correct hazardous area classification (ATEX/IECEx compatibility if required)
• Do not mix with non-barrier I/O modules in same configuration
• Proper grounding is essential for safety compliance
• Installation must follow OEM wiring and safety standards