Bently Nevada 125680‑01 Proximitor I/O Sub‑Module

Technical Specifications

Model: 125680‑01

Brand: Bently Nevada

Product Type: 4‑channel proximitor I/O sub‑module,internal terminal version

Matching Main Module: 3500/40M proximitor monitor front‑panel module

Input Channel: 4 independent proximity signal input channels

Supported Sensor: eddy‑current proximity probe

Function: field proximity probe signal access,signal conditioning front‑end for shaft displacement,radial vibration,differential expansion,eccentricity measurement

Transducer Power:‑24 Vdc

Frequency Response:0‑12000 Hz

Power Consumption: 3.2 W typical,supplied by 3500/40M main board

Remark: Cannot work independently; internal screw terminals; external terminal variant 126646‑01;support TMR triple‑modular‑redundant configuration

Module Form: Half‑height plug‑in rear daughter board

Weight: 0.40 kg

Dimension: 242 mm×112 mm×25 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,receive eddy‑current probe signals for shaft position and vibration monitoring,system maintenance and spare‑part replacement.

Product Details

125680‑01 is internal‑termination 4‑channel proximitor I/O daughter‑board for Bently Nevada 3500/40M proximitor monitor module. It must install on rear side of 3500/40M front‑panel module and cannot operate alone.

It provides internal screw terminals for field wiring,supplies‑24V power for proximity probes,transmits raw gap signal to 3500/40M front card. The front panel completes measurement calculation for radial vibration,thrust position,differential expansion,eccentricity and REBAM bearing analysis,realizes alarm comparison and protection output.

One 3500/40M front‑panel module matches one 125680‑01 to realize max 4 proximity input channels. 126646‑01 is external‑terminal variant for field external wiring requirement. It supports TMR triple‑modular‑redundant system configuration and front‑panel hot‑swap.

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