Product Details:

Bently Nevada 72870-01 is the RVXY-II dual axis vibration monitor card for Bently Nevada 7200 and 3300 turbine supervisory instrumentation systems. This rack-mounted module works with two orthogonally installed eddy current proximity probes to collect X-axis and Y-axis non-contact vibration signals from rotating metal shafts. It continuously calculates peak-to-peak vibration amplitude and generates real-time shaft orbit diagrams, allowing engineers to study rotor dynamic behavior under steady-state, startup and coast-down operating conditions. The 72870-01 supports independent alert and danger threshold setup for each channel. When vibration values exceed the preset limit, the module triggers relay contact alarm output and analog recording signals to DCS and data recorders for continuous fault trending and post-failure analysis. Built-in sensor fault detection can identify probe open circuit, short circuit and cable loop faults, helping maintenance technicians quickly locate wiring and hardware problems on site. Integrated signal filtering circuits suppress electromagnetic noise and spurious pulses under harsh industrial environments with heavy mechanical vibration and electrical interference in power plants and petrochemical facilities. Installed in standard rack slots, this card communicates with rear terminal boards to receive transducer signals and transmit alarm status, maintaining stable measurement accuracy for long-term continuous operation. Widely applied in power generation, petrochemical and metallurgy industries, this shaft orbit monitor is essential safety hardware for steam turbines, centrifugal compressors and generators. It enables plant operators to observe real-time orbit and vibration data, capture early faults such as rotor imbalance, shaft misalignment and oil whirl, prevent internal rubbing and catastrophic mechanical damage, and support the plant's predictive maintenance strategy for critical rotating machinery assets.

Core Attributes:

Brand: Bently Nevada

Model: 72870-01

Product Type: RVXY-II Vibration Monitor Card / Dual Axis Vibration Monitoring Module

Compatible System: Bently Nevada 7200 / 3300 TSI monitoring rack

Input Channels: Dual independent X and Y vibration input channels

Function: X/Y radial vibration measurement, shaft orbit monitoring, configurable alarm thresholds, relay output, sensor fault diagnosis

Mounting: Rack slot installation

Operating Temperature: 0°C ~ +65°C

Feature: Dual axis orbit measurement, built-in signal filtering, relay alarm latch, convenient on-site sensor fault troubleshooting