The BENTLY 350025 (also referred to as 3500/25) is a high-performance Keyphasor Module designed to provide precise rotational synchronization and speed measurement for critical rotating equipment. As a core component of Bently Nevada’s 3500 Series Machinery Protection System, this module plays a pivotal role in vibration analysis, condition monitoring, and predictive maintenance by delivering accurate once-per-turn reference signals. Its advanced signal processing capabilities and rugged design make it indispensable in industries such as power generation, oil refining, and heavy manufacturing.

350025

The BENTLY 350025 excels in providing accurate rotational timing references for machinery monitoring. Its dual-channel input supports signals from proximity probes or magnetic pickups, converting them into digital Keyphasor pulses that synchronize vibration analysis and speed measurements . For example, in a steam turbine, the module detects shaft keyphasor marks to determine rotational speed and phase, enabling 1x vibration amplitude and phase tracking critical for detecting misalignment or imbalance .

350025

1. Turbine Condition Monitoring: Integrates with 3500/42M Vibration Monitors to correlate vibration data with shaft position, enabling early detection of blade damage or bearing wear .
2. Compressor Protection: Supports API 617-compliant systems by providing speed references for anti-surge control and seal integrity monitoring during start-up/shutdown cycles .
3. Predictive Maintenance: By synchronizing data from multiple sensors (e.g., displacement, temperature), the module facilitates holistic machinery health analysis, reducing unplanned outages by up to 30% .
4. Safety-Critical Systems: In triple modular redundant (TMR) configurations, two 350025 modules operate in parallel to ensure fail-safe speed measurement for turbine trip logic .

For more information, please click on the following link:

ABB PCD232A Exciter Control Module Unit

Motorola MVME2400 Sandwich Board PCI Processor

NI PCI-5421 Signal Acquisition Card Signal Generator

PROSOFT MVI56E-MNETC Communication Multi Series Module

GE PCH1026 Vibration Sensor Digital Structural Vibration Monitor