Bently Nevada 3500/44M 176449-03 Aeroderivative Gas Turbine Vibration Monitor

Product Description

The 3500/44M 176449-03 from Bently Nevada is a dedicated vibration monitoring module engineered for aeroderivative gas turbine applications within the 3500 Machinery Protection System. It provides continuous surveillance of vibration signals and delivers real-time condition data to support equipment protection strategies.

This module processes multiple dynamic inputs and compares measured values against predefined alarm thresholds. When limits are exceeded, it triggers alerts to prevent potential equipment damage. The design supports integration with common vibration sensing technologies and turbine synchronization signals, enabling accurate diagnostics and condition-based maintenance.

Technical Specifications

• Model: 3500/44M 176449-03

• Series: Bently Nevada 3500 System

• Function: Aeroderivative gas turbine vibration monitoring

• Monitoring Channels: 4 independent channels

• Sensor Compatibility: Velomitor sensors, accelerometers, Prox/Velom transducers

• Keyphasor Inputs: Up to 2 channels for phase reference and speed tracking

• Signal Processing Features:

• 1X vibration tracking

• Signal integration (velocity/displacement conversion)

• Band-pass filtering for targeted frequency analysis

• Alarm Handling: User-configurable setpoints with relay outputs via system rack

• Dimensions (H × W × D): 241.3 mm × 24.4 mm × 241.8 mm

• Weight: 0.91 kg

• I/O Module Variants:

• Internal termination (Aero GT)

• External termination (Aero GT)

• Prox/Velom interface option

• Mounting: Standard 3500 rack installation

Key Functional Characteristics

• Four-channel architecture enables simultaneous monitoring of multiple vibration points

• Supports both velocity and acceleration-based measurement techniques

• Dual Keyphasor inputs improve rotational analysis and phase tracking

• Integrated filtering and signal conditioning enhance measurement reliability

• Designed for continuous protection of high-speed turbine machinery

Application Areas

• Aeroderivative gas turbines in power generation

• Oil and gas compression and pumping systems

• High-speed rotating equipment requiring continuous vibration protection

• Critical machinery protection systems in process industries

FAQ

What distinguishes the 3500/44M from standard vibration monitors?
This module is specifically optimized for aeroderivative gas turbines, including support for Keyphasor inputs and advanced filtering tailored to high-speed rotating equipment.

Can it be used with different sensor types?
Yes, it supports a range of sensors including Velomitor probes, accelerometers, and proximity-based vibration inputs via compatible I/O modules.

Does the module provide alarm outputs directly?
Alarm evaluation is performed within the module, while output actions are handled through the 3500 rack system’s relay and communication modules.