Bently Nevada 330880-RU-50-028-03-02 PROXPAC XL Proximity Transducer

Description

330880-RU-50-028-03-02: This English configuration of the Bently Nevada PROXPAC XL Proximity Transducer features Option RU for Russian EAC / TR CU hazardous area approvals, a 5.0-inch standoff adapter length (Option 50), and a 2.8-inch probe penetration depth (Option 028). Standardized as an integrated solution, it combines a 3300 XL 8 mm proximity probe and a Proximitor sensor inside a single Polyphenylene Sulfide (PPS) thermoplastic housing, eliminating the need for separate extension cables or junction boxes.

Equipped with Option 03 fittings, the assembly includes one 3/4-14 NPT fitting, a 3/4-14 NPT to 1/2-14 NPT stainless steel reducer, and two plugs, mounting securely via a 3/4-14 NPT thread (Option 02). This integrated transducer interfaces directly with 3300 XL monitoring system inputs over field wiring up to 305 meters, providing vibration and position measurements on rotating machinery where space, severe ambient conditions, or cable routing constraints restrict the use of discrete Proximitor housings.

Features

• Probe and Approvals Option RU: Integrates a 3300 XL 8 mm proximity probe certified under Russian EAC / TR CU hazardous area safety standards.
• Standoff Adapter Option 50: Configured with a 5.0-inch (127 mm) standoff adapter to adjust probe positioning relative to the machine casing.
• Probe Penetration Option 028: Provides 2.8 inches (71 mm) of sleeve penetration depth into the machinery housing.
• Fittings Option 03: Supplied as a kit containing one 3/4-14 NPT conduit fitting, one 3/4-14 NPT to 1/2-14 NPT stainless steel reducer, and two blanking plugs.
• Mounting Thread Option 02: Outfitted with a 3/4-14 NPT mounting thread, required for installations using a standoff adapter.
• Integrated Transducer Design: Houses both the proximity probe and the Proximitor sensor in one self-contained assembly, removing the intermediate extension cable.
• Robust PPS Enclosure: Constructed from ultraviolet-resistant, glass-reinforced polyphenylene sulfide (PPS) containing conductive fibers for electrostatic dissipation.
• High Environmental Protection: Rated for NEMA Type 4X and IP66 environments to protect internal circuitry against moisture and dust ingress.

Applications

• Radial shaft vibration and axial position measurements in heavy industrial rotating machinery.
• Monitoring installations with severe environment exposures where separate extension cables are prone to damage.
• Steam and gas turbines, compressors, gearboxes, and large industrial pumps.
• Hazardous area machinery protection in regions requiring Russian EAC/TR CU certifications.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mounting: Thread the outer sleeve assembly (Option 02) into the 3/4-14 NPT machinery casing port, ensuring the standoff adapter (Option 50) is properly positioned and tightened to a torque of 39.3 N-m (350 in-lb).
• Probe Gapping: Adjust the probe depth within the sleeve (C sleeve depth of 2.8 inches) until the static output voltage reads approximately -10 Vdc, indicating the recommended gap of 1.27 mm (50 mils) from the target shaft surface.
• Conduit and Fittings: Route field wiring through the 3/4-14 NPT to 1/2-14 NPT stainless steel reducer (Option 03). Use suitable sealing methods on the conduit threads to keep moisture from travelling into the IP66-rated PPS housing.
• Grounding: Ensure electrical continuity from the internal grounding liner of the housing to the machine casing to maintain shielding effectiveness.

Compliance and Certifications

• Russian EAC / TR CU Hazardous Area Certifications (Option RU)
• CE Mark Compliance (EMC Directive 2014/30/EU; EN 61000-6-2, EN 61000-6-4)
• RoHS Directive 2011/65/EU
• Housing Environmental Rating: NEMA Type 4X and IP66 (BASEEFA verified)