Description
Product Core Brief
- Model: 3500/44M (Part: 176449-03)
- Brand: Bently Nevada
- Series: 3500 Machinery Protection System
- Core Function: Monitors vibration and speed parameters specifically for aeroderivative gas turbines.
- Product Type: 4-Channel Aeroderivative Gas Turbine Monitor
- Key Specs: 4 Channels | Speed Sensor Input | 7.7W Power Consumption
- Condition: New Original (New Surplus)
BENTLY 3500/44M 176449-03
Product Introduction
BENTLY 3500/44M 176449-03 is a specialized 4-channel monitor module designed specifically for aeroderivative gas turbines within the Bently Nevada 3500 Machinery Protection System.
Unlike standard vibration monitors, this module is tailored for the unique operational characteristics of aero-derivative engines. It accepts speed sensor inputs and continuously compares the monitored parameters against user-configurable alarm setpoints. When limits are exceeded, it drives alarms to provide operators and maintenance personnel with critical machine status information, ensuring safe and reliable operation.
Key Technical Specifications
- Module Type: 4-Channel Aeroderivative Gas Turbine Monitor
- Form Factor: Full-Height
- Channels: 4 Independent Channels
- Input Sensors: Speed Sensors
- Typical Power Consumption: 7.7 Watts
- Indicators: OK LED, TX/RX LED, Bypass LED
- Software Requirements: 3500 Rack Configuration Software
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Trace source via serial number. Inspect front panel connectors and rear Euro-connector for physical damage.
- Visual Inspection: Verify OK, TX/RX, and Bypass LED indicators and module seating alignment.
- Live Functional Test: Install in rack. Verify “OK” LED illuminates and communication with RIM/TDI is established.
- Signal Path Test: Inject simulated speed sensor signal. Verify accurate measurement and alarm triggering in software.
- Final QC & Packaging: Seal in anti-static bag. Apply QC Passed label with date.
Replacement Pitfall Guide
❗ Application Specificity: The 3500/44M 176449-03 is specifically designed for aeroderivative gas turbines. Do not use this module for standard steam turbines or compressors; use the 3500/40M or 3500/42M instead.
❗ Sensor Matching: This module is configured for speed sensor inputs. Ensure your field sensors match the module’s expected input type to prevent measurement errors.
❗ Software Configuration: Alarm setpoints and monitoring parameters are entirely software-driven. Ensure you have the correct 3500 Rack Configuration Software and a valid configuration file before commissioning.
❗ Bypass Mode: The Bypass LED indicates the module is in bypass mode. If this LED is illuminated during normal operation, check the software configuration and verify that no maintenance bypass commands are active.
❗ Power Budget: With a typical power consumption of 7.7 Watts, ensure your 3500 rack power supply has adequate capacity to support this module along with other installed cards.
Keep these in mind and you’ll cut 90% of rework time.
BENTLY 3500/44M 176449-03
Compatibility Matrix & Benchmarks
- 3500/44M 176449-03 → 3500/40M : Alternative — Use 3500/40M for standard eddy current proximity probes
- 3500/44M 176449-03 → 3500/42M : Alternative — Use 3500/42M for multi-sensor (proximitor/seismic/accelerometer) inputs
- 3500/44M 176449-03 → 3500/22M : Complementary — Requires TDI module for rack communication
Benchmarks:
- Alarm Response Time: < 50 ms (typical)
- Power Consumption: 7.7 Watts (typical)
