Bently Nevada 330881-28-09-080-03-02 PROXPAC XL Proximity Transducer

Description

330881-28-09-080-03-02: Metric PROXPAC XL Proximity Transducer featuring a 3300 XL 8 mm probe with multiple hazardous area approvals (Option 28), a 90 mm standoff adapter (Option 09), an 80 mm probe penetration length (Option 080), M20 fitting options (Option 03), and a 3/4-14 NPT mounting thread (Option 02).

This self-contained proximity transducer assembly combines the proximity probe and the 3300 XL Proximitor sensor into a single, unified housing. By mounting the Proximitor sensor directly in the housing lid, the system eliminates the need for external extension cables and separate Proximitor enclosures, greatly simplifying field wiring and installation in tight machinery spaces. The rugged housing is constructed from advanced polyphenylene sulfide (PPS) thermoplastic reinforced with glass and conductive fibers to withstand severe environmental exposure while dissipating electrostatic charges.

Features

• 3300 XL 8 mm Probe with Multiple Approvals (Option 28) provides trusted eddy-current displacement measurements with global hazardous area certifications.
• 90 mm Standoff Adapter (Option 09) provides the precise spacing required to position the probe body in your machinery case.
• 80 mm Probe Penetration (Option 080) allows proper sleeve depth configuration for optimal mechanical clearance.
• Single M20 Conduit Fitting (Option 03) provides safe, reliable cable entry and routing.
• 3/4-14 NPT Mounting Thread (Option 02) enables direct, secure mechanical installation of the outer sleeve assembly.
• Integrated Proximitor Sensor Design eliminates the intermediate extension cable, improving signal integrity and reducing loop connection points.
• Glass-Reinforced PPS Housing provides Type 4X and IP66 protection against chemical washdown, moisture, and corrosive atmospheric environments.

Applications

• Shaft vibration and axial position measurement on rotating machinery.
• Space-constrained applications where a separate Proximitor housing is not feasible.
• Corrosive and harsh industrial environments, such as petrochemical plants, gas turbines, and water treatment facilities.
• Hazardous area machinery monitoring requiring intrinsic safety or non-incendive approvals.

Ordering Information

Technical Specifications

Installation Guidelines

• Grounding and Shielding: Ensure correct grounding of the integrated shielding plate and terminal block. Prevent loops by grounding only at the monitor side or housing.
• Probe Gap Adjustment: Set probe gap to the mid-voltage point (typically -10 Vdc for a 3300 XL 8 mm system) during installation to allow full mechanical dynamic range.
• Conduit Seal: Use appropriate sealing compound on conduit connections to prevent moisture and condensation from traveling through the conduit into the housing.
• Torque Limits: Tighten probe sleeve locknuts to a maximum torque of 39.3 N-m (350 in-lb) and the retaining nut to 29.5 N-m (260 in-lb).

Compliance and Certifications

• European CE Mark: Compliant.
• Ingress Protection: IP66 housing rating (verified by BASEEFA).
• Hazardous Area Approvals: Intrinsic Safety (Ex ia) and Non-Incendive/Increased Safety (Ex nA/ec) certifications for multiple global agencies (including ATEX, IECEx, and CSA) as designated by Option 28.