Bently Nevada 3500/25-01-03-00 3500 Series Enhanced Keyphasor Module

Description

Processing phase reference and speed signals within the 3500 Machinery Protection System, the 3500/25-01-03-00 provides highly accurate timing measurements for diagnostic and monitoring functions. This Enhanced Keyphasor Module accepts input signals from proximity probes or magnetic pickups, converting them into digital phase reference pulses used by other monitor modules in the rack to calculate shaft rotational speed and vector parameters.

The specific configuration of this assembly incorporates a half-height, two-channel Keyphasor card designated by the 01 option. It utilizes an Internal Barrier I/O module with internal terminations (03 option), designed to interface directly with hazardous area transducers without requiring external isolators. No external agency approvals are associated with the 00 option of this variant.

Features

• Provides two independent channels of phase reference and speed processing in a compact half-height form factor.
• Integrated internal safety barrier option simplifies wiring configurations for hazardous environments.
• Delivers highly precise timing signals crucial for machinery diagnostics, transient analysis, and vector measurements.
• Provides buffered transducer outputs on the front panel for convenient maintenance and oscilloscope connectivity.
• Supports multi-channel configuration to distribute phase reference data across the backplane to all rack modules.

Applications

• Turbine speed and phase tracking in power generation plants.
• Critical rotating machinery diagnostics in oil and gas refineries.
• Compressor and expander protection systems.
• Heavy industrial machinery predictive maintenance programs.

Technical Specifications

Installation Guidelines

The 3500/25-01-03-00 is installed in the 3500 rack system. Because this module uses half-height cards, it must be installed in dedicated half-height slots utilizing a structural chassis divider. To maintain the intrinsic safety features of the internal barriers, ensure all wiring connection standards are met according to regional electrical codes. Proper grounding of shield lines at the designated terminal blocks is mandatory to mitigate high-frequency interference on the critical timing signals.