Original Bently Nevada 135489‑02 internal barrier I/O rear card for 3500/42M velocity‑proximity monitor, TSI system spare part.

Product Overview

135489‑02 is internal barrier I/O rear card for Bently Nevada 3500/42M monitor module, belongs to 3500 series TSI machinery protection system. It integrates built‑in intrinsic safety barriers, completes field sensor signal termination, electrical isolation and signal transmission between front monitor card and external velocity / proximity sensors. It provides safe interface for sensors installed in hazardous area, transfers vibration and displacement signals to main processing board, supports analog output and relay alarm signal routing. Adopts front‑rear split rack plug‑in structure, supports hot‑swap maintenance. Widely used as maintenance spare part for turbine, compressor and generator machinery protection cabinets in power‑plant, petrochemical and offshore platform industry.

Key Features

• Built‑in intrinsic safety internal barriers, suitable for field hazardous area sensor connection
• Signal termination and isolation between 3500/42M front card and external velocity, proximity sensors
• Routes field measurement signals, 4‑20mA analog outputs and alarm relay signals
• Front‑rear card separation architecture, supports hot‑swap without rack shutdown
• On‑board circuit protection against surge and electromagnetic interference

• Standard 3500 rack plug‑in design, convenient on‑site replacement and wiring

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Technical Specifications

• Brand: Bently Nevada
• Model: 135489‑02
• Module Type: Internal Barrier I/O Rear Card
• Matched Front Card: 3500/42M
• Safety Feature: Built‑in intrinsic safety barriers
• Power Supply: Backplane powered
• Weight: Approx 0.8kg
• Operating Temp: 0℃ ~ +65℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Plug‑in inside Bently Nevada 3500 system rack

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Compatibility

Compatible with Bently Nevada 3500 series rack and 3500/42M monitor front card. Sensor wiring inspection and machinery protection function test required after replacement.