Bently 3500/25 149369-01 Dual-Channel Keyphasor Module

Description

Bently 3500/25 149369-01 Dual-Channel Keyphasor Module

Product Dimensions：

he Bently Nevada 3500/25 Enhanced Keyphasor Module (Part Number: 149369-01) is a critical component of the 3500 Monitoring System. It is designed to provide phase and speed information to other modules within the rack, which is essential for vibration analysis and diagnostic reporting.

1. Detailed Product Description

The 149369-01 is a half-height, two-channel module that accepts input from Proximitor sensors or magnetic pickups. It processes these signals to provide a Keyphasor signal—a once-per-turn (or multiple-per-turn) pulse used to measure shaft rotation speed and phase angle.

The “Enhanced” version offers improved signal processing and is capable of providing Keyphasor signals to the entire 3500 rack backplane, allowing for precise correlation between vibration data and shaft position.

2. Technical Parameters

3. Product Advantages

• High Precision: Offers extremely accurate phase measurements, which are vital for identifying machinery faults like unbalance, misalignment, or cracked shafts.

• Enhanced Compatibility: The “Enhanced” module (149369-01) provides superior signal routing compared to older versions, supporting up to four Keyphasor signals per rack.

• Reliability: Built to withstand harsh industrial environments, ensuring continuous monitoring of critical assets.

• Hot-Swappable: Can be replaced without shutting down the entire 3500 monitoring system, minimizing downtime.

4. Safety & Precautions

• Installation Environment: Ensure the module is installed in a rack that is properly grounded to prevent signal interference.

• Configuration: The module must be correctly configured using the 3500 Rack Configuration Software before use. Incorrect threshold settings can lead to “missing” pulses or false triggers.

• Static Discharge: Always use an ESD (Electrostatic Discharge) wrist strap when handling the module to avoid damaging internal circuits.

• I/O Modules: Ensure the correct I/O module (located at the back of the rack) is paired with the 149369-01 front module.

5. Typical Applications

The 3500/25 module is used in industries such as Oil & Gas, Power Generation, and Petrochemicals for:

• Steam & Gas Turbines: For speed monitoring and phase reference.

• Compressors & Pumps: Detecting shaft orientation and rotational behavior.

• Predictive Maintenance: Providing the timing trigger for orbit plots and waterfall diagrams in Bently Nevada System 1 software.

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