Bently Nevada 330881-28-04-150-06-02 PROXPAC XL Proximity Transducer

Description

Option 28 (3300 XL 8 mm probe with multiple approvals) and Option 150 (150 mm probe penetration sleeve) specify this unique PROXPAC XL configuration — 330881-28-04-150-06-02. This integrated transducer assembly features a 40 mm standoff adapter and NPT fittings with a stainless steel reducer to deliver a self-contained monitoring system that eliminates external extension cables. By mounting the 3300 XL Proximitor sensor directly in the housing cover, field wiring connects straight from the machinery monitors to the PROXPAC XL assembly, streamlining overall physical complexity.

Unlike basic options lacking mechanical standoff, this metric variant uses a 3/4-14 NPT mounting thread (Option 02) which is mechanically required to support the integrated 40 mm standoff adapter (Option 04). The body is molded from advanced, glass-reinforced polyphenylene sulfide (PPS) thermoplastic containing conductive fibers to strengthen the outer assembly and protect the interior against hostile chemical and electrostatic environments.

Features

• Option 28 integration of a 3300 XL 8 mm proximity probe with multiple hazard approvals.
• Option 04 provides a 40 mm metric standoff adapter to ease machinery casing integration.
• Option 150 sleeve offers a 150 mm probe penetration length for exact gapping.
• Option 06 includes one 3/4-14 NPT fitting, one 3/4-14 NPT to 1-1/2-14 NPT stainless steel reducer, and two plugs.
• Option 02 provides 3/4-14 NPT mounting thread required for standoff structural stability.
• Advanced glass-reinforced polyphenylene sulfide (PPS) thermoplastic housing prevents electrostatic buildup.
• Fully self-contained design removes the requirement for separate Proximitor housings and extension cables.
• NEMA Type 4X and IP66 environmental sealing handles demanding chemical and marine applications.

Applications

• Axial position and shaft vibration monitoring in harsh industrial machinery setups.
• Locations with severe ambient environments where separate Proximitor protection is impractical.
• Direct-on-machine mounting where field wiring must run directly to monitoring racks.
• Petrochemical, power generation, and gas turbine installations requiring certified intrinsically safe hardware.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

Ensure the housing is securely mounted. The 3/4-14 NPT mounting thread (Option 02) must be fully engaged to ensure the structural integrity of the standoff adapter. Observe the manufacturer-recommended torque limits: apply 29.5 N-m (260 in-lb) to the retaining nut, and 39.3 N-m (350 in-lb) to the probe sleeve locknut. Ensure that sealing washers, plugs, and fittings are correctly installed to prevent moisture from traveling through conduits into the housing interior.

Compliance and Certifications

• European CE Mark compliant
• IP66 rating verified by BASEEFA (Report T07/0709)
• Hazardous Area Approvals (Option 28): Intrinsically safe (Ex ia IIC T4/T5 Ga, Ex ia IIIC T90C/T105C Dc) and non-sparking/increased safety (Ex nA IIC T4/T5 Gc, Ex ec IIC T4/T5 Gc) for zone-rated environments