Bently Nevada 330881-28-00-148-03-02 PROXPAC XL Proximity Transducer

Description

330881-28-00-148-03-02: PROXPAC XL Proximity Transducer, Metric version featuring a 3300 XL 8 mm probe with multiple hazardous area approvals, configured without a standoff adapter, with a 148 mm probe penetration, one M20 conduit fitting with two plugs, and 3/4-14 NPT mounting threads. This configuration uses standard metric thread engagement parameters to support specific sleeve orientations directly inside the machinery case.

This integrated assembly combines a 3300 XL 8 mm proximity probe and its matching Proximitor sensor into a single, self-contained housing. By mounting the Proximitor sensor directly in the housing lid, this design eliminates the need for an external extension cable and separate Proximitor junction enclosure, directly routing field wiring to the monitor rack. The housing is constructed from glass-reinforced, electrostatic-dissipating polyphenylene sulfide (PPS) thermoplastic, providing Type 4X and IP66 protection in harsh industrial environments.

Features

• Option 28: Integrated 3300 XL 8 mm probe pre-certified with multiple international hazardous area approvals.
• Option 00 Standoff: Direct mounting configuration without a standoff adapter.
• Option 148 Penetration: Factory-measured probe sleeve penetration of 148 mm.
• Option 03 Fittings: Supplied with one M20 conduit fitting and two blanking plugs for flexible wiring entries.
• Option 02 Thread: Standard 3/4-14 NPT mounting threads to match standard ports.
• PPS Thermoplastic Housing: Glass-reinforced polyphenylene sulfide body dissipates electrostatic charges and resists chemical attack.
• IP66 and Type 4X Enclosure: Rated for environmental resistance against dust, water ingress, and corrosive atmospheres.
• Integrated Transducer Design: Eliminates intermediate extension cables and remote Proximitor enclosures.

Applications

• Shaft vibration and axial position monitoring on industrial rotating machinery.
• Severe environment installations requiring IP66 or Type 4X chemical and weather resistance.
• Retrofits and installations where space or mounting constraints prevent the use of separate extension cables and Proximitor housings.
• High-moisture, condensing, or hose-down environments.

Ordering Information

Technical Specifications

Installation Guidelines

• Moisture Control: Prevent moisture entry from the conduit into the housing. Proper sealing of conduit entries using the supplied fittings and blanking plugs is required to maintain the IP66 and Type 4X environmental ratings.
• Grounding: Ensure the internal grounding liner and plate are properly connected. The conductive fiber PPS housing helps dissipate electrostatic charges.
• Resonance and Support: Additional sleeve support near the probe is recommended if combined B and C dimensions exceed 305 mm to avoid vibration resonance.
• Tightening Torque: Tighten the retaining nut to 29.5 N-m and the probe sleeve locknut to 39.3 N-m to maintain secure mechanical mounting.

Compliance and Certifications

• ATEX/IECEx: Ex ia IIC T4/T5 Ga, Ex ia IIIC T90C/T105C Dc, Ex nA IIC T4/T5 Gc, Ex ec IIC T4/T5 Gc.
• cNRTLus: Class I, Zone 0: AEx/Ex ia IIC T4/T5 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III.
• European CE Mark: Compliant.
• Housing Protection: IP66 verified by BASEEFA.
• NEMA: Type 4X rating verified.