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

Product Overview

When machinery vibration threatens uptime, the Bently Nevada 330105-02-12-05-12-05 provides precise measurement. This 3300 XL 8 mm reverse mount probe is designed for permanent installation in critical rotating equipment. Its rugged construction and agency approvals make it a trusted choice for oil and gas, power generation, and heavy industry applications.

Technical Specifications

The 330105-02-12-05-12-05 features a total length of 0.5 meters with a tolerance of 7.45 ± 0.50 ohms nominal DC resistance. It uses a miniature ClickLoc coaxial connector with FluidLoc cable option. The probe tip is made of polyphenylene sulfide (PPS), and the case is AISI 303 or 304 stainless steel. Agency approvals include CSA, ATEX, and IECEx. The probe operates and stores from -52°C to +177°C for standard range, with an extended temperature range option up to +218°C for the tip and +260°C for the cable. The probe case thread is 3/8-24 UNF with a maximum thread engagement of 0.563 inches.

Industry Applications

This probe excels in monitoring shaft vibration and position in turbines, compressors, and pumps. Its reverse mount design allows installation in tight spaces where standard probes cannot fit. The PPS tip resists harsh chemicals and high temperatures, making it suitable for refinery and chemical plant environments. The CSA, ATEX, and IECEx approvals ensure compliance with global safety standards for hazardous areas.

Installation Guidance

Install the 330105-02-12-05-12-05 with careful attention to thread engagement—maximum 0.563 inches for the 3/8-24 UNF thread. Ensure the probe tip is clean and free of debris before insertion. The FluidLoc cable option is not necessary for most installations due to the probe sleeve; evaluate your application before ordering. Use the specified torque values from the manufacturer to avoid damaging the probe case.

Maintenance and Reliability

Regularly inspect the probe cable and connector for wear or damage. The stainless steel case resists corrosion in humid or corrosive environments. The probe is designed to seal differential pressure between tip and case using a Viton O-ring. For extended life, avoid exposing the probe to temperatures below -34°C, which may cause premature failure of the pressure seal. Follow the manufacturer's guidelines for periodic testing.

Compatibility and Integration

This probe works with Bently Nevada 3300 XL series monitors and extension cables. The 75-ohm triaxial cable with FEP insulation ensures signal integrity over long distances. For extended temperature applications, use the PFA-insulated cable option. The gold-plated connectors provide reliable electrical contact in demanding conditions.

Selection and Purchasing Advice

Before ordering, verify the total probe length and connector option match your system requirements. The 330105-02-12-05-12-05 includes the -12 connector option (miniature ClickLoc with FluidLoc cable) and -05 agency approval option (CSA, ATEX, IECEx). Contact plcmatrix.com for current availability and lifecycle status. We stock new, surplus, and obsolete parts to support your maintenance needs.