Bently Nevada 330881-28-10-060-03-02 PROXPAC XL Proximity Transducer

Description

Bently Nevada 330881-28-10-060-03-02 is a metric-configured PROXPAC XL Proximity Transducer assembly featuring a 3300 XL 8 mm proximity probe with Multiple Approvals, a 100 mm standoff adapter length, and a 60 mm probe penetration sleeve length. Unlike typical configuration variants that require separate external extension cables and standalone Proximitor sensors, this self-contained design integrates its own 3300 XL Proximitor sensor directly into the polyphenylene sulfide (PPS) cover of the housing. This integration saves valuable cabinet space and eliminates the risks associated with coaxial connector exposure on the factory floor.

This specialized machinery protection system provides reliable shaft vibration, position, and speed monitoring in highly demanding industrial settings. The structural body is manufactured from advanced thermoplastic molded with glass and conductive fibers to dissipate electrostatic charges. Engineered with a Type 4X and IP66 ingress protection rating, the housing ensures the internal electronics are sealed against moisture, dust, and corrosive vapors common in chemical plants, refineries, and cooling towers.

Features

• Integrated Proximitor Cover: Internal 3300 XL Proximitor sensor eliminates the need for an external extension cable and dedicated sensor enclosures.
• Hazardous Area Certified (Option 28): Pre-installed 3300 XL 8 mm probe meets strict Multiple Approvals requirements (including ATEX, IECEx, and CSA) for Zone 0, Zone 1, and Zone 2 installations.
• Metric Standoff and Penetration (Option 10 and 060): Configured with a 100 mm standoff adapter and a 60 mm probe sleeve to allow external dial-in probe gap adjustment.
• Corrosion-Resistant Housing: Advanced PPS thermoplastic casing with conductive fibers offers chemical resistance and high structural impact durability.
• M20 Conduit Integration (Option 03): Supplied with a kit containing one M20 conduit fitting and two plugs for clean, watertight routing of field wiring.
• Threaded Mount (Option 02): Includes standard 3/4-14 NPT mounting thread options for robust mechanical casing integration.

Applications

• Radial vibration and axial thrust position measurements on high-speed industrial compressors.
• Corrosive or high-humidity environments, including cooling tower fans and marine propulsion systems.
• Steam turbine casing and industrial gearbox mechanical protection chains.
• Remote machinery setups where minimizing cable run junctions and external hardware footprint is critical.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Sleeve Gap Adjustment: Adjust the physical probe gap by loosening the outer sleeve locknut (recommended torque 39.3 N-m / 350 in-lb) and sliding the sleeve. Tighten once the gap voltage measures -10 Vdc (approx. 1.27 mm / 50 mils) on the target surface.
• Field Cable Specifications: Use 3-conductor, twisted shielded field wire (typically 18 AWG / 1.0 mm2) to connect the cover terminal block to the rack monitors. Connect the shield at the monitor common terminal only.
• Moisture Prevention: Provide a drip loop in the flexible conduit immediately prior to the M20 conduit entries (Option 03) to prevent condensation or washdown water from flowing into the plastic housing.

Compliance and Certifications

• EMC: EN 61000-6-2 (Industrial Immunity), EN 61000-6-4 (Industrial Emissions)
• RoHS: Compliant with European Union Directive 2011/65/EU
• Environmental Protection: IP66 rated under BASEEFA report T07/0709 and Type 4X verified
• Hazardous Areas (Option 28): Certified for ATEX/IECEx Zone 0 (Ex ia IIC T4/T5 Ga) and CSA Class I, Div 1/Zone 0 with safety barriers; certified for Zone 2 (Ex nA/Ex ec IIC T4/T5 Gc) without barriers.