Bently Nevada 330103-00-07-20-02-00 3300 XL 8 mm Proximity Probe

Description

Option 00 (0 mm unthreaded length), Option 07 (70 mm case length), and Option 20 (2.0 meters total length) specify this metric 330103-00-07-20-02-00 proximity probe configuration. This non-contact eddy-current displacement sensor pairs with a 3300 XL Proximitor sensor and extension cable to detect static and dynamic shaft motion for rotating machinery condition monitoring. It has an M10 x 1 metric thread pattern on a fully threaded 70 mm case, offering a sturdy physical mount directly into machine casings without an unthreaded offset region.

Unlike equivalent 330104 variants that feature stainless steel armor over the lead cable, this 330103 probe operates with a standard, unarmored 75-ohm coaxial cable with a 3.68 mm outside diameter, facilitating routing through tight conduits or standard protection sleeves. The Miniature ClickLoc coaxial connector (Option 02) provides a standard coaxial connection interface without a pre-installed connector protector. Since this variant utilizes Option 00 for agency approvals, it is designed for installations where specific international hazardous area certifications are not required at the probe level, streamlining procurement for standard industrial environments.

Features

• M10 x 1 Metric Thread: Allows direct installation into metric-threaded machine housings with a standard 10 mm hexagonal wrench structure.
• Option 00 Unthreaded Length: Fully threaded design with 0 mm unthreaded offset allows deep case thread engagement.
• Option 07 Case Length: Standard 70 mm metric case length provides a reliable physical reach inside industrial bearing housings.
• Option 20 Total Cable Length: Integrated 2.0-meter (6.6 feet) flexible coaxial cable permits direct routing to extension cables or local connection terminals.
• Option 02 ClickLoc Connector: Miniature gold-plated coaxial connector provides secure physical feedback upon locking, with no connector protector bulk.
• 8 mm Tip Diameter: Optimizes the sensing field for standard machinery monitoring gaps without mechanical interference.

Applications

This 3300 XL metric proximity probe is deployed in heavy-duty rotating machinery to monitor axial position, radial vibration, and speed. Typical application settings include:

• Steam and gas turbine bearing housing monitoring.
• Centrifugal compressor shaft vibration tracking.
• Gearbox and cooling tower fan shaft displacement measurement.
• Hydroelectric generator shaft alignment verification.
• General machinery protection systems utilizing 3500 series vibration monitors.

Ordering Information

Technical Specifications

Installation Guidelines

For correct mounting and measurement results with the 3300 XL 8 mm proximity probe system, adhere to the following guidelines:

• Ensure the probe mounting thread matches the housing thread (M10 x 1) before thread engagement.
• Maximum thread engagement length inside metric housing must not exceed 15 mm to avoid potential thread binding.
• To avoid signal interference, maintain a minimum mechanical clearance of 10 mm (0.4 in) around the probe tip from adjacent metal structures.
• Hand-tighten the ClickLoc coaxial connector until an audible and tactile "click" is verified. Do not use pliers on gold "click" connectors.
• Route the standard, unarmored 3.68 mm coaxial cable through a dedicated conduit or protective tray to protect it from mechanical wear or sharp edges.