Fortune Dcs

Component Description

The part number 3500/42 176449-02 refers to a specific module from the Bently Nevada 3500 System, a premier machinery protection and monitoring platform.

• 3500/42: This designates a Dual-Channel Radial Vibration Monitor Module. This is a core module in the 3500 system, responsible for monitoring the relative vibration of a machine's shaft at its bearing housings. It processes conditioned signals from eddy current proximity probes (provided by a separate 3500/40 Proximitor Module) to measure shaft dynamic motion (vibration) and static position (DC gap).

• 176449-02: This is a specific hardware revision or assembly number for this module.

In summary, the 3500/42 module is a primary protection device for critical rotating equipment. It continuously monitors shaft vibration (in µm or mils peak-to-peak) and, when configured with a relay module, can trigger alarms and shutdowns to prevent machine damage from conditions like unbalance, misalignment, and oil whirl.

Key Parameters

The following table outlines the key parameters for the 3500/42 Radial Vibration Monitor module.

Application Scenarios

The 3500/42 is a fundamental module for protecting assets where shaft relative vibration is the key indicator of machine health.

1. Turbine and Compressor Protection:

• Application: Gas Turbines, Steam Turbines, Centrifugal Compressors.

• Function: Installed at each radial bearing to monitor shaft vibration. It is the first line of defense against common rotor dynamic problems such as unbalance, misalignment, and shaft instability, providing warnings and initiating trips to prevent catastrophic failure.

2. High-Speed Pump Monitoring:

• Application: Boiler Feed Pumps, Pipeline Pumps, and other high-energy rotating equipment.

• Function: Detects developing mechanical faults, including bearing wear, impeller issues, and cavitation, by monitoring changes in vibration signature. This allows for predictive maintenance and forced outage prevention.

3. Machine Train Condition Monitoring:

• Application: Power generation and petrochemical plant machinery trains.

• Function: Used on multiple bearings along a machine train (e.g., turbine-generator-compressor) to provide a comprehensive picture of rotor dynamics and health. The module's dynamic outputs can be connected to a TDI module for advanced waveform analysis.

4. Integration with Diagnostic Systems:

• Application: Any critical rotating equipment.

• Function: The buffered vibration and gap signals are used for detailed analysis by external systems, enabling machinery diagnostics, root cause analysis of failures, and long-term health trending.