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Product Overview
The Bently Nevada 3500/44 176449-03 Aeroderivative GT Vibration Monitor is a specialized monitoring module designed to measure and protect aeroderivative gas turbines from excessive vibration. As part of the 3500 Machinery Protection System, it continuously processes signals from compatible proximity probes or seismic transducers to detect vibration levels that could lead to equipment damage or failure. It provides real-time monitoring, alarm notification, and trip signals for integration with turbine control systems. The module is optimized for the unique dynamic characteristics of aeroderivative gas turbines, ensuring both reliable protection and valuable diagnostic data for predictive maintenance.
Key Features
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Purpose-built for aeroderivative gas turbine vibration monitoring
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High-accuracy signal processing for rotating machinery protection
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Continuous online monitoring and real-time alarms
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Compatible with proximity probes and seismic sensors
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Configurable alarm setpoints for both warning and trip levels
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Supports integration with Distributed Control Systems (DCS) or Safety Instrumented Systems (SIS)
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Hot-swappable module design for easy maintenance
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Built-in self-testing and fault diagnostics
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 3500/44 |
| Part Number | 176449-03 |
| Module Type | Aeroderivative Gas Turbine Vibration Monitor |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Function | Monitors and protects aeroderivative gas turbines from excessive vibration |
| Compatible Sensors | Bently Nevada proximity probes, seismic transducers, velocity sensors |
| Channels | 4 independent monitoring channels |
| Measurement Parameters | Vibration amplitude, phase, and frequency |
| Signal Processing | Real-time digital signal processing (DSP) |
| Alarms | Configurable alert and danger setpoints |
| Outputs | 4–20 mA proportional outputs, relay contacts via 3500 rack modules |
| Communication | Via 3500 rack and system interfaces |
| Power Supply | From 3500 rack backplane |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 0% to 95% non-condensing |
| Dimensions | 241.3 x 24.4 x 241.8 mm |
| Weight | 0.91 kg |
| Certifications | CE, CSA, ATEX (varies by configuration) |
Industry Applications
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Aeroderivative gas turbine power generation systems
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Offshore oil & gas power modules
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Industrial cogeneration plants
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Emergency backup power turbines
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Marine propulsion turbines
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LNG plant turbine-driven compressors
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the 3500/44 176449-03?
It monitors vibration in aeroderivative gas turbines to protect them from mechanical damage.
Q2: Can it be used with non-aeroderivative turbines?
It is optimized for aeroderivative GTs but can be configured for other machinery if required.
Q3: How many channels does it have?
It provides 4 independent vibration monitoring channels.
Q4: Does it provide phase measurements?
Yes, it can measure both amplitude and phase.
Q5: How does it connect to control systems?
Through the 3500 rack outputs such as 4–20 mA signals, relays, and communication interfaces.
Q6: Does it have built-in alarms?
Yes, with configurable alert and danger setpoints.
Q7: Can it be replaced while the turbine is running?
Yes, it supports hot-swapping within the 3500 rack.
Q8: Is it certified for hazardous environments?
Yes, certain versions are ATEX and CSA approved.
Q9: Does it require specific sensors?
Yes, it works with Bently Nevada proximity probes and seismic/velocity sensors.
Q10: What is its typical mounting location?
Inside a 3500 rack installed near or within the turbine control panel.
Related Modules
| Model Number | Description |
|---|---|
| 3500/40 | Proximitor® Monitor |
| 3500/42M | Preamplifier Earthquake Monitor |
| 3500/45 | Position Monitor |
| 3500/50 | Tachometer Module |
| 3500/53 | Overspeed Detection Module |
Popular Bently Nevada Products
| Model Number | Description |
|---|---|
| 330101-00-14-10-02-05 | 3300 XL 8 mm Proximity Probe |
| 330104-01-05-50-02-00 | 3300 XL 8 mm Proximity Probe |
| 330130-045-01-05 | 3300 XL Standard Extension Cable |
| 3500/22M | Transient Data Interface Module |
| 3500/32M | Relay Module |
