Bently Nevada 330106-05-030-10-02-CN 3300 XL 8 mm Reverse Mount Probe

Description

Providing critical shaft vibration and position feedback, this Bently Nevada 330106-05-030-10-02-CN transducer functions as a core component within the 3300 XL 8 mm proximity transducer system. Designed for reverse-mount installations where internal machine clearances require back-entry threading, the unit provides high-accuracy non-contact displacement measurements for turbomachinery. It features a 3/8-24 UNF thread pattern without armor, a 1.0-meter total cable length, and a miniature ClickLoc coaxial connector for robust electrical continuity. Fully certified with CN country-specific agency approvals, this probe is optimized for hazardous area safety compliance.

Key Features

• Reverse Mount Design: Specialized 3/8-24 UNF unthreaded/threaded housing optimized for reverse installation configurations.
• Non-Armored Cable: Lightweight, flexible, coaxial cable without outer protective armor for clean routing.
• ClickLoc Coaxial Connection: Equipped with a miniature ClickLoc connector to resist vibration-induced signal disruption.
• HazLoc Certified: Suffix CN provides local hazardous area and explosion-proof approvals.
• System Matching: Fully calibrated to interact with 3300 XL Proximitor sensors for linear scale output.

Applications

• Turbomachinery Monitoring: Direct radial shaft vibration and axial thrust position tracking.
• Compressor & Pump Shaft Protection: Detects oil whip, rotor unbalance, and structural misalignment in high-speed industrial pumps.
• Hydroelectric & Gas Turbines: Deployed in harsh environments to detect critical shaft clearances and rotational dynamics.

Option Configuration Table

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

The 1.0-meter probe length used in this unit requires matching system components. To construct a calibrated 5.0-meter system, the probe must be paired with a 4.0-meter extension cable and a 5.0-meter Proximitor sensor. Likewise, a 9.0-meter system configuration requires an 8.0-meter extension cable. Mixing 3300 XL 8 mm components with older non-XL components or mismatched system lengths will introduce significant electrical runout and scale factor errors.

Application Pitfalls & Engineering Notes

A major field issue during reverse-mount installations is the accidental crushing of the probe tip. Since the probe is threaded in from the rear of the machine sleeve or adapter, the target rotor surface must be physically visualised or measured using a mechanical depth micrometer prior to insertion. Also, always ensure there is sufficient counterbore clearance around the probe body to prevent side-loading or phantom signals caused by metallic machinery housings interacting with the probe's magnetic field.

Commissioning & Wiring Tips

Before mating the ClickLoc coaxial connectors, ensure they are thoroughly cleaned with an approved contact cleaner and free of oil or machine grease. Do not use pliers or hand tools to tighten the miniature connector; finger-tight is sufficient. To prevent fluid contamination and electrical tracking errors inside oily machine housings, always seal the connector joint using self-fusing silicone tape or Bently Nevada connector silicone sleeves.

Installation Guidelines