Product Details:

The Emerson 1172C25 is a dedicated rotation speed monitor module built for Emerson large rotating machinery protection systems. This speed monitor board receives pulse signals from magnetic pickups or tachometer sensors mounted on rotating shafts, calculates real-time rotor speed and detects overspeed, underspeed and zero-speed conditions. It compares measured rotational speed against preset safety thresholds, outputs alarm and trip signals to trigger equipment protection actions to prevent catastrophic damage to turbines, compressors and rotating machinery. It integrates signal conditioning and noise filtering circuits to eliminate false speed readings caused by field electrical interference, ensuring reliable speed detection even in oil mist and high-vibration industrial environments. It adopts industrial signal chips and robust PCB layout design, featuring strong anti-electromagnetic interference capability to maintain stable continuous operation. It is designed as rack slot pluggable installation, supporting quick replacement during equipment maintenance and cutting down system downtime. The Emerson 1172C25 cooperates with vibration monitor modules, eddy current sensors and power units to provide full condition monitoring for rotating assets. It is widely applied in power plant steam turbines, gas turbines, centrifugal compressors, large fans and oil & gas rotating equipment, delivering accurate rotor speed monitoring and reducing unexpected shutdown risks of process production equipment.

Specifications

Brand: Emerson

Model: 1172C25

Product Type: Rotation Speed Monitor Module

Function: Tachometer pulse signal processing, rotor speed calculation, overspeed and underspeed protection

Application: Steam turbine, gas turbine, centrifugal compressor, rotating machinery protection system

Feature: Anti-interference, threshold adjustable, rack slot mounting, fast fault trip output