Products Description
Bently Nevada 135489‑01 I/O Module With Internal Barriers

Technical Specifications
Model: 135489‑01
Brand: Bently Nevada
Product Type: I/O module with internal barriers
Applicable Monitor: 3500/42M,3500/70,3500/72 monitor module
Channel Layout: 4 independent sensor input channels
Supported Transducer: proximity transducer,velocity transducer,acceleration transducer
Safety Feature: Built‑in intrinsic safety barriers for hazardous area field wiring
Terminal Type: Internal termination design,no external safety barrier required
Power Consumption: Supplied by 3500 rack backplane
System Compatibility: Bently Nevada 3500 machinery protection rack
Module Form: Full‑height rear‑mount I/O daughter board
Weight: 0.46kg
Dimension: 241.3mm×24.4mm×163.1mm
Protection Grade: IP20
Certification: ATEX,IECEx,UL,CSA
Working Temperature: ‑30℃ ~ +65℃,non‑condensing
Storage Temperature: ‑40℃ ~ +85℃
Humidity: 5%‑95% non‑condensing
Application: Turbine,compressor,pump,fans rotating machinery monitoring,sensor signal interface for hazardous zone installation,3500 rack system maintenance and spare‑part replacement.

Product Details
135489‑01 is the rear I/O daughter board for Bently Nevada 3500 series monitor modules,compatible with 3500/42M,3500/70 and 3500/72 monitor cards.
It integrates internal intrinsic safety barriers,which allows proximity,velocity and acceleration sensors installed in hazardous area to connect directly to the 3500 rack without external safety barriers. It adopts internal termination structure for field sensor wiring.
This I/O board works together with corresponding front monitor module to complete vibration,displacement and other parameter measurement. It strictly follows intrinsic safety installation specifications. Standard non‑barrier I/O board can be replaced by this module for hazardous area system upgrade.
Note: This is legacy 3500 series spare component,widely used for replacement of turbine and compressor TSI monitoring & protection systems.