Bently Nevada 330881-BR-05-060-00-02 PROXPAC XL Proximity Transducer

Description

Option BR (3300 XL 8 mm probe with INMETRO Brazilian approvals) and Option 05 (50 mm standoff adapter) specify this PROXPAC XL metric configuration — 330881-BR-05-060-00-02. This integrated proximity transducer assembly combines a 3300 XL 8 mm proximity probe and a 3300 XL Proximitor sensor into a single, self-contained unit. By eliminating the extension cable between the probe and Proximitor, this design simplifies field wiring and reduces installation complexity.

This metric configuration is equipped with a 60 mm probe penetration length (Option 060), utilizes a 3/4-14 NPT mounting thread (Option 02), and includes no conduit fittings (Option 00, supplied with two plugs and two washers). The housing is molded from glass-reinforced, UV-resistant polyphenylene sulfide (PPS) thermoplastic with conductive fibers, providing protection rating up to IP66 and Type 4X for severe industrial environments.

Features

• Integrated Sensor Assembly: Integrates a 1-meter 3300 XL 8 mm proximity probe and a 3300 XL Proximitor sensor within the same rugged housing to eliminate the need for an external extension cable.
• INMETRO Approvals (Option BR): Furnishes a 3300 XL 8 mm probe compliant with Brazilian INMETRO hazardous area standards for explosive atmospheres.
• 50 mm Standoff Adapter (Option 05): Includes a 50 mm standoff adapter (B dimension) to adjust the housing height and clear machine obstructions.
• 60 mm Penetration (Option 060): Configured with a 60 mm metric probe penetration sleeve length (C dimension) to accurately locate the probe tip relative to the target shaft.
• NPT Mounting (Option 02): Employs a 3/4-14 NPT mounting thread option, which is standard for standoff installations.
• Fittings Configuration (Option 00): Supplied with no conduit fittings, containing two plugs and two washers for direct field-wire insertion.
• Severe-Environment Housing: Made from high-strength polyphenylene sulfide (PPS) thermoplastic to resist chemical attack, moisture, and impact.

Applications

• Shaft radial vibration and axial position measurements on high-speed rotating machinery.
• Monitoring in hazardous petrochemical, oil and gas, and power generation environments requiring INMETRO certification.
• Locations with severe ambient conditions where separating Proximitor housings and using delicate extension cables is impractical.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure proper alignment of the 3300 XL 8 mm probe tip with the shaft target surface (minimum target diameter 15.2 mm).
• Set the nominal gap to 1.27 mm (50 mils) corresponding to the midpoint of the linear range.
• Apply standard torque values: 29.5 N-m (260 in-lb) for the retaining nut and 39.3 N-m (350 in-lb) for the probe sleeve locknut.
• Avoid routing field wiring near high-voltage lines or sources of heavy electromagnetic fields. Maximum field wiring length should not exceed 305 meters (1000 feet).
• Prevent moisture ingress into the PPS housing by sealing the conduit entries and keeping plugs securely tightened.

Compliance and Certifications

• CE Mark: Compliant with European CE directives.
• Hazardous Area Approvals: INMETRO (Brazil) Intrinsically Safe (Ex ia IIC T4/T5 Ga) and Non-Incendive/Increased Safety (Ex nA/Ex ec IIC T4/T5 Gc) via Option BR.
• Mechanical Protection: IP66 and Type 4X rated housing.