The Key Phasor I/O Module Bently Nevada 3500/25 is an Enhanced Keyphasor Module, a critical two-channel component within the 3500 machinery protection system. Its primary function is to generate precise Keyphasor signals by detecting a once-per-turn mark on a rotating shaft using proximity probes or magnetic pickups. This timing reference is fundamental for the entire monitoring system.

A key advantage of the Enhanced Keyphasor Module Bently Nevada 3500/25 is its enhanced signal processing capabilities while maintaining full backward compatibility with existing system layouts. The module delivers highly accurate rotational speed data, with a remarkable accuracy of ±0.1% of reading, which is essential for reliable machinery diagnostics.

The design of the Bently Nevada 3500/25 Enhanced Keyphasor Module supports flexible system configurations, including paired setups for Triple Modular Redundant (TMR) applications to achieve the highest level of safety availability. This versatility allows it to serve as a primary or secondary Keyphasor signal source, ensuring system redundancy and fault tolerance.

Ultimately, the precise timing pulses provided by the 3500 System 3500/25 Bently Nevada enable other monitor modules to measure vital vector parameters like 1X vibration amplitude and phase. This makes the 3500/25 Keyphasor Module Bently Nevada an indispensable component for accurate rotor dynamics analysis and overall machinery health assessment.