Product Details:

Bently Nevada 72972-73-02-05-02-01-02-15 is a high precision rack-mounted keyphasor module belonging to the Bently Nevada 3300 turbine supervisory instrumentation system. This phase monitoring module receives pulse signals generated by the keyphasor proximity probe mounted on the rotating shaft, capturing one precise trigger pulse per shaft revolution to establish the angular reference position of the rotor. The keyphasor signal is the core reference parameter required for synchronous vibration analysis, which allows monitoring hardware to separate 1X, 2X and other harmonic vibration components from broadband background noise. The 72972-73-02-05-02-01-02-15 continuously processes pulse signals to calculate real-time rotor rotational speed and phase angle data, and transmits clean timing reference signals to vibration monitor cards and digital vector filter modules. Engineers rely on these data to generate Bode plots, polar plots and orbit diagrams for rotor dynamic analysis during machine startup, load variation and coast-down processes. Each channel supports independent trigger level configuration to adapt to different sensor output amplitudes and shaft notch machining conditions. Built-in signal noise filtering circuits effectively suppress electromagnetic interference and false pulse signals induced by mechanical vibration in power plants and petrochemical sites. The module is equipped with sensor fault diagnostic logic, which can detect probe open circuit, short circuit and signal loss conditions, outputting fault status to help maintenance personnel quickly locate wiring and hardware problems. Designed for rack slot installation inside the 3300 instrument cabinet, this rotor phase speed reference card can withstand continuous industrial vibration and maintain stable performance for long-term non-stop operation. Widely used in power generation, petrochemical, chemical and metallurgy industries, this keyphasor module is indispensable hardware for rotating machinery protection systems of steam turbines, centrifugal compressors and generators. It helps plant analysts identify rotor imbalance, shaft misalignment, oil whirl and internal rubbing faults at an early stage, prevents catastrophic mechanical failure and unplanned production downtime, and supports the plant's predictive maintenance strategy for critical rotating assets.

Core Attributes:

Brand: Bently Nevada

Model: 72972-73-02-05-02-01-02-15

Product Type: Keyphasor Module / Rotor Phase Speed Reference Card

Compatible System: Bently Nevada 3300 series TSI monitoring rack

Input Signal: Pulse signal from keyphasor proximity probe

Function: Rotor rotational speed measurement, phase reference capture, configurable trigger threshold, sensor fault diagnosis, timing signal output for vibration analysis

Mounting: Rack slot installation

Operating Temperature: 0°C ~ +65°C

Feature: Per-channel trigger setup, built-in noise filtering, precise phase reference capture, supports Bode and polar plot generation, real-time sensor fault indication