Bently Nevada 3500/40M Proximitor Monitor Module

Technical Specifications

Model:3500/40M

Brand:Bently Nevada

Product Type:4‑channel proximitor monitor front‑panel module

Mainboard PN:140734‑01

Matching I/O Sub‑board:125680‑01(internal terminal),126646‑01(external terminal)

Input Channel:Max 4 proximity transducer input channels

Supported Sensor:eddy‑current proximity probe

Transducer Power:‑24 Vdc

Input Impedance:10 kΩ(standard);50 kΩ(TMR bus mode)

Sensitivity:

Radial Vibration / Thrust / Eccentricity:3.94 mV/μm(100 mV/mil),7.87 mV/μm(200 mV/mil)

Differential Expansion:0.394 mV/μm(10 mV/mil),0.787 mV/μm(20 mV/mil)

REBAM:40 mV/μm(1000 mV/mil),80 mV/μm(2000 mV/mil)

Frequency Response:0‑12000 Hz

Measurement Accuracy:±0.33%FS

Function Supported:radial vibration,thrust position,differential expansion,eccentricity,REBAM bearing analysis

Power Consumption:7.7 W typical,supplied by 3500 rack backplane

Front‑panel LED:OK,TX/RX,Bypass

System Compatibility:Bently Nevada 3500 machinery protection rack

Remark:Channels configured in pairs;support alert / danger alarm setpoint;support TMR triple‑modular‑redundant configuration;support hot‑swap;cannot work without matching rear I/O daughter‑board

Module Form:Full‑height rack‑mount plug‑in front‑panel module

Weight:0.58 kg

Dimension:241 mm×24.4 mm×242 mm

Protection Grade:IP20

Certification:UL,CSA,CE

Working Temperature:‑30℃ ~ +65℃,non‑condensing

Storage Temperature:‑40℃ ~ +85℃

Humidity:5%‑95% non‑condensing

Application:Turbine,compressor rotating machinery TSI protection system,realize shaft radial vibration,thrust position,differential expansion,eccentricity monitoring and hardware alarm protection output,system maintenance and spare‑part replacement.

Product Details

3500/40M is 4‑channel proximitor monitor front‑panel module for Bently Nevada 3500 TSI machinery protection system. It must be equipped with corresponding rear I/O sub‑board and cannot run independently.

It receives eddy‑current probe signal from matched I/O sub‑board,realizes multi‑function measurement by 3500 rack configuration software. Channels work in pair mode,channel1‑2 for one function,channel3‑4 for another or same function. It supports alert and danger programmable alarm threshold,output protection interlock signal for machinery protection.

Two optional I/O sub‑boards for selection:125680‑01 internal terminal;126646‑01 external terminal. Support TMR triple‑modular‑redundant system configuration,front‑panel module supports hot‑swap without rack power‑off. Widely used for steam turbine,gas turbine and compressor shaft position & vibration monitoring loop.

Note:This is legacy 3500 series spare component,widely used for replacement of turbine and compressor TSI monitoring & protection systems.