Name: Bently Nevada 3500/42M (140482‑02) Proximitor / Seismic Monitor - MASSIVE
Brand: Bently Nevada

Description

Bently Nevada 3500/42M (140482‑02) Proximitor / Seismic Monitor

Product Overview

3500/42M (part number 140482‑02) is a 4‑channel configurable monitor module for Bently Nevada 3500 machinery protection rack system. It accepts signals from proximity probes and seismic transducers (velocity / accelerometer), performs signal conditioning, measurement and alarm comparison for rotating machinery protection. Channels are programmed in pairs via 3500 Rack Configuration Software, supporting mixed‑function monitoring inside one single module. It complies with API‑670 machinery protection standard, widely used for turbine, compressor critical machinery protection.

Typical Applications

Steam / Gas Turbine: Radial vibration, thrust position, differential expansion, eccentricity monitoring
Centrifugal Compressor: Shaft vibration, thrust position, housing vibration velocity / acceleration
Power‑generation sets: Machinery protection for large rotating equipment
Oil & gas / Petrochemical: On‑shore & offshore critical rotating machinery safety monitoring
Industrial fans & large pumps: Vibration and position protection interlock

Supported measurement functions (pair‑wise configuration)： Radial Vibration, Thrust Position, Differential Expansion, Eccentricity, REBAM, Velocity, Acceleration, Shaft Absolute, Circular Acceptance Region

3500/42M 140482-02

Technical Specifications

Item	Parameter
Model	3500/42M, Part No: 140482‑02
Module Type	Proximitor / Seismic Monitor Module
Channel Count	4 channels (configured by channel‑pair: Ch1‑2 / Ch3‑4)
Input Transducer	Proximity probe (3300‑XL series), Velomitor velocity sensor, Accelerometer
Sensor Power	−24 VDC for proximity probes
Front‑panel Output	Buffered sensor BNC outputs (short‑circuit protected)
Alarm	Alert (warning) + Danger (trip) setpoints per channel; drive rack relay modules
Frequency Range	0.05 Hz ~ 500 Hz
Accuracy	±0.02 % Full‑Scale typical
Power Consumption	Max 5 W
Operating Temperature	0 °C ~ +60 °C (rack environment)
Storage Temperature	‑40 °C ~ +85 °C
Humidity	5‑95 % RH, non‑condensing
Weight	~0.70 kg
Compatibility	3500 series rack chassis; external termination version (140482‑02)
Compliance	API‑670, CE; SIL‑2 capable within complete 3500 system

Key Features

Dual‑type transducer support: One module works with both eddy‑current proximity probes (displacement/position) and seismic vibration sensors (velocity/acceleration).
Pair‑wise flexible configuration: Two different measurement functions can run simultaneously on 4 channels (e.g. Ch1‑2 for radial vibration; Ch3‑4 for thrust position).
Buffered BNC outputs on front panel: Direct access to raw transducer signal for portable oscilloscope / analyzer troubleshooting.
Multi‑level alarm logic: User‑configurable Alert and Danger thresholds; alarms can trigger rack relay modules for machinery trip protection.
Front‑panel LED indicators: OK, TX/RX, BYPASS status for quick local diagnosis.
Rack hot‑swap: Module can be replaced online without powering down the whole 3500 rack.
System‑wide diagnostics: Reports sensor fault, open‑circuit, short‑circuit and module internal faults to 3500 system software.

Installation Guidelines

ESD protection: Always use anti‑static wrist strap during module handling.
Insert module into a free slot of 3500 rack, lock front latch firmly.
Field sensors connect to external termination block (140482‑02 = external termination variant). Do not wire field signals directly onto module front.
Configure channel function, measurement range, alarm Alert / Danger thresholds using 3500 Rack Configuration software, download settings to rack.
Perform transducer loop check and calibration; verify buffered BNC signal quality.
Confirm OK LED steady‑on; no fault / bypass status before putting machinery protection online.
Environment: Install inside indoor control cabinet; avoid moisture, corrosive gas, keep operating temperature within 0 ~ 60 °C.