Bently Nevada 170190-01 Dual Galvanic Isolator

Product Overview

The Bently Nevada 170190-01 is a high-reliability Dual Galvanic Isolator engineered for the FieldMonitor machinery protection platform. Its primary function is to provide an electrical "break" or isolation barrier between field sensors and the monitoring system, effectively preventing ground loops and protecting sensitive electronics from high-voltage surges up to 250 V. 

Technical Specifications

• Part Number: 170190-01

• Alternative Reference: NP0852-2

• Product Type: Dual Galvanic Isolator

• Platform Compatibility: Bently Nevada FieldMonitor Series

• Isolation Rating: 250 V

• Maximum Temperature: +70°C (+158°F)

• Channels: Dual (Supports two independent signals)

• Weight: 0.2 kg (0.44 lbs)

• Mounting: Specialized FieldMonitor Terminal Manifold / Rack

Key Features and Engineering Advantages

• Signal Integrity Protection: Eliminates common-mode noise and ground loop currents that can cause "ghost" vibration readings or signal drift in long cable runs.

• Dual-Channel Efficiency: Provides two independent isolation paths in a single module, allowing for the protection of two different sensor inputs (such as X and Y vibration probes) while saving space.

• High Thermal Resilience: The +70°C rating allows the isolator to be installed in field-mounted instrument boxes where ambient temperatures are elevated due to process heat.

• Safety Barrier Functionality: While it protects the monitor from the field, it also acts as a safety barrier by ensuring that faults in the control room cannot send dangerous levels of energy back into the field wiring.

• Legacy System Support: As a discontinued manufacturer item, this module is a critical replacement part for maintaining the safety and accuracy of existing FieldMonitor installations.