BENTLY 3500/45 176449-04

Description

Detailed parameter table

BENTLY 176449-02

Product introduction

The 3500/45 176449-04 from Bently Nevada is an advanced vibration and position monitoring module designed as a specialized variant in the 3500 Machinery Protection System lineup. This 2-slot module builds upon the capabilities of the 176449-02 (3500/42M) by adding dedicated keyphasor functionality, making it ideal for applications requiring precise rotational reference data alongside vibration measurements. Bently Nevada’s 3500/45 176449-04 serves as a critical measurement hub that synchronizes vibration analysis with rotational position, enabling advanced diagnostic capabilities while maintaining core protection functionality.

As an enhanced monitoring solution, 3500/45 176449-04 converts signals from proximity probes, vibration sensors, and keyphasor transducers (connected via 136711-01 cables) into actionable machinery health metrics. Installed in 125744-02 racks and configured through 136180-01 modules, it delivers real-time protection through configurable alarms while providing synchronized measurement data for detailed diagnostic analysis. This module is particularly valuable in applications where rotational position correlation is essential for fault diagnosis, such as high-speed turbines, compressors, and generators.

Core advantages and technical highlights

Integrated keyphasor functionality: A defining feature of 3500/45 176449-04 is its dedicated keyphasor input, which provides precise rotational reference data for vibration analysis. This enables synchronous data acquisition, order tracking, and phase analysis—critical capabilities for identifying shaft bow, misalignment, and other rotation-related machinery issues that would be difficult to detect with vibration data alone.

Enhanced diagnostic capabilities: Building on the measurement foundation of 176449-02, this module adds advanced signal processing that correlates vibration data with rotational position. This correlation supports sophisticated analysis techniques including orbit plots, Bode plots, and polar plots, providing deeper insights into machinery behavior and enabling more accurate fault diagnosis.

Multi-parameter monitoring: Like its 176449-02 counterpart, 3500/45 176449-04 supports multiple critical measurements across four channels, including radial vibration, axial position, and differential expansion. This versatility eliminates the need for multiple specialized modules, simplifying system architecture while providing comprehensive machinery health monitoring.

Synchronized transient integration: The module maintains precise synchronization with 133388-01 transient monitors, ensuring that high-speed data capture during alarm conditions includes accurate keyphasor timing information. This synchronized data is invaluable for post-event analysis of transient events, providing both vibration amplitude and rotational position context to understand fault mechanisms.

Typical application scenarios

In power generation turbine systems, 3500/45 176449-04 modules provide essential monitoring capabilities for both protection and diagnostics. Installed in 125744-02 racks, they monitor radial vibration, axial position, and differential expansion while using keyphasor inputs to track rotational position. This combination enables precise analysis of shaft behavior during startup/shutdown sequences, allowing engineers to identify critical speed resonance points and balance issues that could impact turbine reliability. The module integrates with 176449-02 units in larger systems to provide comprehensive coverage across multiple machine sections.

Oil and gas compressor stations utilize 3500/45 176449-04 to monitor high-speed rotating equipment where rotational synchronization is critical. The module’s keyphasor functionality enables accurate order tracking of vibration components, helping distinguish between speed-dependent faults (like unbalance) and non-synchronous issues (like bearing defects). By integrating with 125712-01 I/O modules, it combines vibration data with process parameters to provide a complete picture of compressor health during varying load conditions.

In large manufacturing facilities with critical rotating machinery, 3500/45 176449-04 modules support both protection and predictive maintenance programs. The keyphasor synchronization allows for precise vibration analysis at specific rotational positions, enabling early detection of gear mesh issues, camshaft problems, and other position-dependent faults. Maintenance teams use the detailed diagnostic data, accessed via 140734-01 gateways, to schedule targeted maintenance activities before equipment performance degrades.

BENTLY 176449-02

Related model recommendations

176449-02 (3500/42M): Complementary vibration monitor for systems requiring additional channels without keyphasor.

125744-02: Rack assembly that houses and powers the 3500/45 176449-04 module.

136180-01: Configuration module that programs monitoring parameters for 3500/45 176449-04.

133388-01: Transient monitor that captures synchronized high-speed data triggered by 3500/45 176449-04.

136711-01: Sensor cable providing input signals to 3500/45 176449-04 from probes and keyphasors.

140734-01: Communication gateway that transmits synchronized data from 3500/45 176449-04.

3500/60 163179-01: Display module that visualizes real-time data including keyphasor information.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing 3500/45 176449-04, verify compatibility with the target 125744-02 rack firmware version and ensure two adjacent slots are available. Confirm the system power supply can accommodate the 11 W maximum load. Gather required tools including torque screwdriver, vibration calibrator, oscilloscope (for keyphasor verification), and configuration laptop with 3500 software. Inspect the module for shipping damage, particularly checking input connectors and backplane pins.

Maintenance suggestions: Include 3500/45 176449-04 in quarterly system inspections, verifying status LEDs, communication links, and keyphasor signal integrity. Perform annual calibration using certified vibration standards and keyphasor simulators to maintain measurement accuracy. During scheduled maintenance, verify alarm setpoints, keyphasor thresholds, and synchronization with 133388-01 transient monitors through 136180-01 configuration interfaces. Clean input connectors annually with approved electronic contact cleaner. Update firmware during major system upgrades to ensure compatibility with 176449-02 modules and other system components.

Service and guarantee commitment

Bently Nevada provides the 3500/45 176449-04 with a 36-month warranty covering manufacturing defects and performance issues under normal operating conditions, including measurement accuracy, keyphasor functionality, alarm operation, and communication capabilities. Our technical support team offers expert guidance on configuration, calibration procedures, and integration with 176449-02 monitors and other 3500 system components.

We offer specialized training on advanced vibration analysis with keyphasor data, module programming, and diagnostic interpretation specific to 3500/45 176449-04. Beyond the warranty period, our service agreements include calibration verification, technical support, and expedited replacement services to minimize system downtime. Bently Nevada’s commitment to quality ensures reliable performance throughout its operational lifecycle, backed by our global network of service professionals.