Bently Nevada 330105-02-12-05-12-CN 3300 XL 8 mm Reverse Mount Probe

Introduction

When machinery vibration monitoring demands precision and durability, the Bently Nevada 330105-02-12-05-12-CN 3300 XL 8 mm Reverse Mount Probe delivers reliable performance. Designed for harsh industrial environments, this probe uses a polyphenylene sulfide (PPS) tip and AISI 303 or 304 stainless steel case to withstand extreme conditions. The 0.5 meter total length option with a miniature ClickLoc coaxial connector ensures secure signal transmission. Part of the trusted 3300 XL series, this probe addresses common failure points like cable fatigue and temperature extremes.

Technical Specifications Breakdown

The 330105-02-12-05-12-CN features a nominal probe DC resistance of 7.45 ± 0.50 ohms from center conductor to outer conductor at 0.5 meter length. This low resistance minimizes signal loss for accurate vibration readings. The probe tip material is polyphenylene sulfide (PPS), offering excellent chemical resistance and thermal stability. The case material is AISI 303 or 304 stainless steel (SST), providing corrosion resistance in wet or corrosive atmospheres. Operating temperature range spans -52°C to +177°C (-62°F to +350°F) for standard probes, ensuring reliable function in both cold and hot environments.

Industry Applications

In rotating machinery monitoring, the 330105-02-12-05-12-CN excels at detecting shaft vibration and position. Its reverse mount design suits tight clearance installations in turbines, compressors, and pumps. The FluidLoc cable option (connector option -12) provides additional cable strain relief for applications with high vibration or frequent cable movement. However, for most installations the probe sleeve already offers sufficient protection, so evaluate your specific needs before selecting this option. The probe's pressure seal, using a Viton O-ring, maintains integrity under differential pressure between tip and case.

Installation & Setup Guidance

Proper installation of the 330105-02-12-05-12-CN requires careful thread engagement. The 3/8-24 UNF threads allow a maximum engagement length of 0.563 inches. Use the correct torque to avoid damaging the probe tip or case. Ensure the probe cable is routed without sharp bends or kinks to prevent signal degradation. The standard cable is 75 ohm triaxial with fluoroethylene propylene (FEP) insulation, available in lengths of 0.5, 1, 1.5, 2, 3, 5, or 9 meters. For higher temperature environments, extended temperature range cable with perfluoroalkoxy (PFA) insulation is available.

Maintenance & Reliability

To maximize the service life of the 330105-02-12-05-12-CN, inspect the probe cable and connector periodically for wear or damage. The probe's tensile strength is rated at 330 N (75 lbf) from probe case to probe lead, and 270 N (60 lbf) at the probe lead to extension cable connectors. Avoid exceeding these limits during installation or maintenance. The probe weighs 323 g/m (11.4 oz), so support the cable adequately to prevent strain on connections. Exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal, so take precautions in cold environments.

Compatibility & Integration

The 330105-02-12-05-12-CN is compatible with Bently Nevada 3300 XL monitoring systems and extension cables. The miniature ClickLoc coaxial connector ensures a secure, quick connection. The gold-plated brass or gold-plated beryllium copper connector material provides excellent conductivity and corrosion resistance. For applications requiring armored cable, flexible AISI 302 or 304 SST armor with FEP outer jacket is optional. Verify the total probe length and connector type match your system requirements before ordering.

Buying Guide

When purchasing the 330105-02-12-05-12-CN, confirm the total length option (0.5 meter in this case) and connector option (12 for miniature ClickLoc with FluidLoc cable). The agency approval option -CN indicates country-specific certification for certain regions. Always verify the probe's temperature range and cable type suit your application environment. For current availability and lifecycle status, contact plcmatrix.com. We stock new, surplus, and obsolete industrial automation parts from leading brands like Bently Nevada, ensuring you find the right component for your system.