Bently Nevada 140734-03 Aeroderivative Machinery Protection Monitor

Quick Overview

The 140734-03 is a specialized 4-Channel Vibration Monitoring Module engineered specifically for the high-performance demands of aeroderivative gas turbines. As part of the Bently Nevada 3500 Series, this module provides the critical high-frequency data acquisition and phase reference tracking necessary for protecting lightweight, high-speed turbine rotors. 

Technical Data

• Model Number: 140734-03

• Number of Channels: 4 Independent Channels

• Keyphasor® Inputs: Dual (for phase reference and speed)

• Sensor Compatibility: Proximity Probes and Accelerometers

• Power Supply: 18–36 VDC

• Operating Temp: -30°C to +65°C

• Dimensions: 254 mm (L) x 254 mm (W) x 31.75 mm (H)

• Weight: 0.86 kg (1.90 lbs)

Key Features

• Aeroderivative Optimization: Tailored specifically for the unique vibration signatures of aeroderivative turbines, ensuring stable monitoring across extremely high RPM ranges.

• Dual Keyphasor® Tracking: Features two independent phase reference inputs, essential for accurate orbit analysis, 1X/2X amplitude tracking, and phase-lag diagnostics.

• Multi-Transducer Versatility: Simultaneously supports proximity probes for shaft relative motion and accelerometers for absolute casing vibration, providing a complete picture of rotor health.

• Configurable Alarm Logic: Offers three-tier alarm levels (Warning, Alert, and Danger) that can be customized to match specific turbine manufacturer specifications.

• High-Frequency Resolution: Employs advanced sampling rates to capture transient vibration events and high-order harmonics common in aero-derivative machinery.