Bently Nevada 136188-02

The Bently Nevada 3500/25-01-03-00 is an Enhanced Keyphasor Module designed for the 3500 Machinery Protection System. This half-height, two‑channel module processes signals from eddy‑current proximity probes or magnetic pickups, converting them into digital phase reference pulses. These pulses indicate precisely when a shaft's Keyphasor mark passes the transducer, providing the critical timing reference required for accurate vibration monitoring and shaft speed measurement .   This specific configuration –01‑03‑00 includes a single half‑height two‑channel Keyphasor card, an Internal Barrier I/O module with internal terminations for safe wiring in hazardous areas, and no external agency approvals . As an upgraded replacement for the legacy 125792‑01 module, it offers expanded processing capabilities while maintaining complete backward compatibility.

The Bently Nevada 136188-02 is the I/O module for the 3500/92 Communication Gateway, serving as the physical interface that connects the 3500 machinery protection system to plant-wide automation networks. This module provides the physical termination points for both Ethernet and serial communication, enabling data exchange between the 3500 rack and external systems such as DCS, PLC, and SCADA platforms .   As an integral part of the 3500/92 system (paired with the 136180-01 main board), this module converts monitored vibration, temperature, and position data into industry-standard Modbus formats for seamless system integration . The specific configuration 136188-02 indicates an Ethernet/RS485 Modbus I/O module.