Product Description

Overview

The Bently Nevada 176449-04 Enhanced Keyphasor Module is a precision timing module for the 3500 Machinery Protection System. This half-height, dual-channel module converts signals from proximity probes or magnetic pickups into digital Keyphasor signals, providing accurate shaft position and speed references.

Unlike protective modules, the 176449-04 serves as a synchronization and diagnostic enabler, supplying the essential $1\times$ reference for phase measurement, vector analysis, and time-synchronized data collection across the rack.

Key Features

Advanced Signal Processing

• Supports two independent Keyphasor inputs per module, expandable with additional modules.

• High-speed accuracy for phase and speed measurements, even at extreme RPMs.

• Enhanced filtering and self-diagnostics reduce false triggers from mechanical runout or electrical noise.

Comprehensive Measurement Capabilities

• Provides phase reference signals for vector (Bode and Polar) plots and vibration analysis.

• Accurately tracks machine speed during startup, steady-state, and coast-down conditions.

Optimized Integration

• The -04 configuration is designed for internal termination with secure rear-rack connections.

• Communicates timing and phase data across the 3500 backplane to all vibration monitors.

• Supports redundant module configurations to maintain timing reference in case of sensor failure.

System Compatibility

• Works seamlessly with other 3500 modules, including vibration, position, and Keyphasor-based diagnostics.

• Enables synchronized sampling required for advanced condition monitoring and machinery diagnostics.

Technical Specifications

Applications

• Provides precise phase and speed data for turbomachinery, compressors, and turbines.

• Enables vector analysis, Bode and Polar plots, and time-synchronized sampling for condition monitoring.

• Essential for advanced diagnostics and predictive maintenance programs.

FAQ

Q: What is the purpose of the Enhanced Keyphasor Module?
A: It generates digital Keyphasor signals to provide phase reference and speed information for diagnostic modules.

Q: Can this module be used for protection functions?
A: No, it is a timing and diagnostic module; protection is handled by other 3500 series monitors.

Q: What does the -04 suffix indicate?
A: The -04 denotes internal termination with specific rear-rack connectors for clean signal integration.