Bently Nevada 330173-00-04-20-12-05 3300 5mm Proximity Probe

Description

330173-00-04-20-12-05 specifies this metric 3300 5 mm proximity probe configuration, which features a standard M8 x 1 thread (without armor), an unthreaded length of 0.0 mm, an overall case length of 40 mm, a 2.0-meter total cable length, a ClickLoc miniature connector, a FluidLoc cable, and multiple global hazardous area approvals.

Unlike standard configurations that utilize FEP-insulated coaxial cables (such as ClickLoc options 01 or 02), this unit is constructed with specialized FluidLoc cable technology (Option 12). FluidLoc incorporates internal sealing elements to prevent oil and other process liquids from migrating out of the machine housing through the cable interior. This specific unarmored probe configuration is designed for mounting directly in restricted metric threaded ports where high-pressure fluids are present, providing dependable physical isolation.

This eddy-current transducer probe serves as a non-contact sensor for static and dynamic displacement measurements in machinery monitoring systems. It measures shaft radial vibration, axial position, and Keyphasor speed signals on fluid-film bearing machines. When connected to a 3300 XL Proximitor sensor and a matching extension cable, the transducer system produces an analog output voltage that is directly proportional to the physical gap between the probe tip and the target surface.

Features

• M8 x 1 metric thread configuration (without armor) for direct mounting in metric-threaded machinery ports.
• Option 00 specifies a 0.0 mm unthreaded length, allowing the case to be fully threaded for maximum depth adjustment.
• Option 04 provides an overall case length of 40 mm for low-profile housing installations.
• Option 12 designates a miniature coaxial ClickLoc connector with FluidLoc cable construction to seal against internal fluid leakage.
• Option 20 provides a 2.0-meter (6.6-foot) total cable length, eliminating the need for short whip cables in close-coupled setups.
• Option 05 incorporates multiple international hazardous area certifications (CSA, ATEX, and IECEx) for explosive atmospheres.

Applications

• Radial vibration and axial position measurement on high-speed rotating machinery.
• Fluid-film bearing machinery displacement monitoring in industrial environments.
• Keyphasor reference and speed sensing on small-diameter shafts with limited mounting clearance.
• Oil-filled bearing housings where process fluids could migrate through standard sensor cables.
• Hazardous area machinery monitoring in petrochemical, oil and gas, and power generation installations.

Ordering Information

Technical Specifications

Installation Guidelines

• Mount the probe using a standard 13.0 mm metric lock nut (included) for standard-mount metric installations.
• Observe the recommended case torque of 5.1 N-m (45 in-lb) during tightening. Do not exceed the maximum torque limit of 7.3 N-m (65 in-lb) to prevent case distortion.
• Maintain a minimum cable bend radius of 25.4 mm (1.0 in) to protect the internal coaxial structure.
• Calibrate the probe gap to the recommended nominal setting of 1.27 mm (50 mils) by monitoring the DC output voltage of the Proximitor sensor.
• Ensure all electrical connections are clean and free of contaminants. Do not expose standard connectors to turbine oil unless protected or sealed.
• Ensure the transducer system is grounded properly according to safety requirements for explosive environments.

Compliance and Certifications

• CE Compliant
• Multiple Approvals (Option 05): CSA, ATEX, and IECEx certified for use in intrinsically safe and non-incendive hazardous environments.