Description

Engineered for high-reliability vibration and position monitoring, the 330880-28-35-036-00-02 is a heavy-duty integrated proximity transducer assembly from the Bently Nevada PROXPAC XL series. This assembly houses a 3300 XL 8 mm eddy current probe, providing critical dynamic motion and static position measurements for turbomachinery and industrial rotating assets.

The 330880-28-35-036-00-02 configuration features a 3.5-inch standoff adapter and a 3.6-inch probe penetration depth, optimized for precise alignment within machine casings. It is designed with a 3/4-14 NPT mounting thread and includes two plugs and two washers without additional fittings. This specific configuration utilizes Option 28, incorporating a 3300 XL 8 mm probe with multiple hazardous area approvals for robust performance in explosive or harsh operating environments.

Note: This model configuration can serve as a direct legacy alternative or comparison point for the replacement assembly model 330880-16-35-036-00-02.

Features

• Integrated PROXPAC XL housing providing structural protection for the transducer and cable connections.
• Equipped with a 3300 XL 8 mm proximity probe for high-accuracy proximity and displacement sensing.
• Multiple hazardous area approvals configured under option code 28.
• Robust 3/4-14 NPT mounting thread ensuring mechanical stability under high-vibration conditions.
• Supplied with two plugs and two washers (no extra fittings option) for streamlined mechanical integration.

Applications

• Steam and gas turbine shaft vibration and radial position monitoring.
• Thrust and axial displacement measurements in centrifugal compressors.
• Structural vibration and shaft monitoring in large industrial pumps and gearboxes.
• Hydroelectric generator shaft alignment and thermal expansion tracking.

Technical Specifications

Installation Guidelines

Proper physical alignment and mechanical mounting are essential for the operation of the PROXPAC XL transducer:

• Mounting: Ensure the 3/4-14 NPT threads are properly sealed with industrial-grade thread sealant to maintain casing integrity.
• Penetration Depth: Verify the 3.6-inch penetration depth aligns the 8 mm probe tip correctly relative to the target shaft surface before tightening the assembly.
• Grounding and Shielding: Properly ground the system shield at the monitor end to prevent electromagnetic interference from distorting the proximity signal.
• Protection: Inspect the housing plugs and washers to ensure a tight seal against moisture, oil, and contaminants.

Compliance and Certifications

• Multiple hazardous area approvals (ATEX, IECEx, and North American standards associated with Bently Nevada Probe Option 28).