Product Details:

The BENTLY NEVADA 133396-01 overspeed detection I/O module is the internal signal interface board for the Bently Nevada 3500/53 overspeed detection module in the 3500 machinery protection rack system. This speed signal interface board receives pulse signals from proximity probes or magnetic pickups installed on rotating shafts, and converts raw sensor pulses into processed speed signals for the 3500/53 main board to calculate shaft rotating speed and execute overspeed voting protection logic. The 3500/53 I/O Board adopts internal termination design, which can directly connect field speed sensors and remove the requirement of external terminal blocks, simplifying on-site wiring and reducing wiring fault risks. It supplies -24VDC transducer power for speed sensors, and supports 4-20mA recorder output for mapping speed value to DCS or PLC systems. The module supports three independent input channels, and cooperates with the main module to realize 2-out-of-3 fault-tolerant voting logic, effectively preventing false trips caused by single sensor failure. It supports hot swapping during rack operation without affecting the core overspeed protection function. Built-in continuous self-diagnosis function can detect sensor open circuit, short circuit and board hardware faults, and report abnormal state through LED indicators. It complies with API 670 turbomachinery protection standard, widely used in power, petrochemical and offshore oil plants, matched with steam turbines, gas turbines and centrifugal compressors for high-reliability overspeed safety protection.

Brand: Bently Nevada

Model:133396-01

Product Type: Overspeed Detection I/O Interface Board

Compatibility:Bently Nevada 3500/53 Overspeed Detection Module

Channels:3 speed input channels

Input:Proximity probe, magnetic pickup

Output:4-20mA recorder output

Transducer Power:-24VDC, max 40mA

Power Consumption:8.0W typical

Feature:Internal termination,API 670 compliant,2-out-of-3 voting,self-diagnosis,hot swappable

Application:Bently Nevada 3500 machinery protection rack overspeed monitoring