Bently Nevada 330880-00-20-038-00-02 PROXPAC XL Proximity Transducer

Description

Option 00 (no probe; Proximitor sensor only) and Option 20 (2.0 in standoff adapter) specify this 3300 XL PROXPAC integrated proximity transducer configuration - 330880-00-20-038-00-02. Designed with a 3.8 in probe penetration length (Option 038), the assembly provides a self-contained monitoring solution by placing the 3300 XL Proximitor sensor directly in the housing lid, eliminating the need for separate Proximitor housings and extension cables. This model does not include a probe sleeve fitting kit (Option 00) and features a standard 3/4-14 NPT mounting thread (Option 02) for secure mechanical installation.

By combining the sensor and termination enclosure into a single, compact unit, this configuration reduces field wiring and installation complexity. Unlike configurations that include an integrated 3300 XL 8 mm probe or have hazardous area approvals, the 330880-00-20-038-00-02 serves as a non-approved replacement or customizable baseline housing assembly where the target probe and external conduit options are selected separately.

Features

• Integrated Proximitor Sensor: Cover-mounted 3300 XL Proximitor eliminates the need for separate signal conditioning housings and extension cables.
• Polyphenylene Sulfide (PPS) Housing: Molded thermoplastic body reinforced with glass and conductive fibers offers excellent electrostatic dissipation and environmental protection.
• Flexible Mechanical Adjustability: Features a 2.0 in (51 mm) standoff adapter length and 3.8 in (97 mm) probe penetration length to match specific machine case geometries.
• Standard Mounting Interface: Furnished with a robust 3/4-14 NPT mounting thread for rigid connection to the machine case.
• Type 4X and IP66 Protection: Verified casing seals isolate the internal probe and electronics from hose-directed water and highly corrosive environments.

Applications

The integrated configuration is suitable for a variety of heavy-duty rotating machinery monitoring applications, including:

• Shaft radial vibration measurements on steam turbines, gas turbines, and large compressors
• Axial thrust position monitoring on high-speed pumps and industrial gearboxes
• Industrial machinery protection where a compact, direct-to-monitor field wiring setup is required
• Corrosive or high-humidity environments where metal enclosures are prone to degradation

Ordering Information

Technical Specifications

Installation Guidelines

For correct mounting and long-term mechanical reliability, observe the following engineering recommendations:

• Verify that the total combined "B" plus "C" dimension does not exceed 305 mm (12 in) without providing additional probe sleeve support near the probe tip to avoid resonances.
• Ensure the O-rings are lubricated and properly seated before assembly to maintain the IP66 ingress protection rating.
• Prevent water and solvent accumulation inside the housing cover by routing field wiring through conduit that slopes away from the housing.
• Do not expose the probe tip to environments below -34 degC (-29 degF) prior to machine startup, as low temperatures may affect the pressure seal performance.

Compliance and Certifications