Bently 3500-93 135785-02 System Display Interface Module (Rev‑02 Updated Revision)

Description

Hardware & Electrical Specifications

‑ Manufacturer: Bently Nevada (Baker Hughes) ‑ Compatible System: 3500‑05 full‑size / mini rack, mandatory pairing with 3500/22M TDI module ‑ Functional Type: Updated‑Rev System Display Interface Module (DIM) for 3500/93 Local Operator Display ‑ Communication Interfaces:  ‑ Serial: RS‑422 (connect to display unit via matched rear I/O card) ‑ Supported Protocols: Bently proprietary display protocol ‑ Max quantity per rack: Up to 2 pieces for dual‑display application ‑ Max cable distance to display unit: 100 ft (30 m); up to 4000 ft with special cable assembly ‑ Typical power consumption:5.8 W, powered by rack backplane bus ‑ Front‑panel Indicators: OK LED, TX/RX LED ‑ Matching Parts: Main‑board 135785‑02 must pair with rear I/O 135801‑01, sold separately ‑ Hot‑swap: Supports hot‑swap; local‑display function lost during replacement; machinery‑protection trip logic remains fully operational. ‑ PCB Coating: Conformal coated for harsh industrial cabinet environment ‑ Safety Certification: CE, CSA, ATEX hazardous‑area approvals available

Environmental Specifications

‑ Operating Temperature:‑30 ℃ ~ +65 ℃ ‑ Storage Temperature:‑40 ℃ ~ +85 ℃ ‑ Relative Humidity:5%‑95 % non‑condensing ‑ Vibration & Shock: Complies with API‑670 machinery‑protection cabinet standardsManualsLib

Mechanical Data

‑ Dimension(H×W×D):241.3 mm ×24.4 mm ×241.8 mm ‑ Weight: approx 0.82 kg

Core Functions

1. Rack‑to‑display data bridge: Collect full‑rack channel measurements, alarm status, fault codes and event history, transmit to 3500/93 local LCD display for on‑site operator viewing.
2. Dual‑display support: Single rack can install two 135785‑02 DIM modules to drive two independent local display panels.
3. Enhanced diagnostics: Improved serial‑link fault detection, backplane communication error reporting versus older 135785‑01 revision.
4. Protection‑safety isolation: DIM hardware failure will not impact hardware trip logic of all monitor modules; machinery‑protection function remains intact.
5. Self‑diagnosis: Detect backplane communication fault, serial‑link fault to display unit; report module hardware fault to rack‑system log.

Installation, Replacement & Critical Warnings

1. Supports hot‑swap; local‑display operator interface is lost during plug‑pull, but machinery‑protection trip function is unaffected.
2. Compatibility warning: ‑ Must use matched rear‑I/O 135801‑01; can directly replace old‑revision 135785‑01 without changing rear‑I/O. ‑ Front‑face‑mount display application requires DIM install in slot‑15 (right‑most slot) of full‑size rack; remote‑mount display has no slot‑15 restriction. ‑ Maximum two DIM modules per rack for dual‑display configuration; must cooperate with 3500/22M TDI module. ‑ Verify rack firmware version compatibility before replacement.
3. After replacement, check OK LED status; download rack configuration project, verify serial communication link to display unit, confirm real‑time data and alarm indication on local display panel.

4. Common failure mode: Serial‑interface circuit damage, component aging; serial cable fault will cause local‑display blank / no‑data, will not trigger machinery‑protection trip.