Bently Nevada 330105-02-12-05-02-00 3300 XL Reverse Mount Proximity Probe

Description

330105-02-12-05-02-00: 3300 XL 8 mm reverse mount proximity probe configured with a 3/8-24 UNF threaded case, 0.2 inches of unthreaded length, and a 1.2-inch overall case length. Option 05 defines the 0.5-meter (1.6 feet) total integrated cable length, which terminates in a standard miniature coaxial ClickLoc connector (Option 02) without requiring agency approvals (Option 00).

Unlike standard proximity probes with front-facing mounting threads, reverse mount configurations are installed through the reverse side of a housing or mounting sleeve, making them suitable for specialized machinery enclosures. This model employs standard coaxial cabling rather than armored options, making it suitable for installations that utilize protective conduits or external sleeves. The 0.5-meter integrated cable length requires an extension cable to complete a standard 5-meter or 9-meter transducer system loop connected to a 3300 XL Proximitor sensor.

Features

• Option 02 unthreaded length provides a compact 0.2-inch nose clearance for flush installations.
• Option 12 overall case length provides a 1.2-inch physical body size with 3/8-24 UNF-2A threads.
• Option 05 specifies an integrated 0.5-meter (1.6 feet) probe cable length.
• Option 02 ClickLoc coaxial connector features gold plating and a locking mechanism.
• Option 00 specifies standard build specifications without hazardous area approval marks.
• 8.0 mm tip diameter with PPS (polyphenylene sulfide) tip material for high mechanical stability.
• Operating temperature range of -52 degC to +177 degC (-62 degF to +350 degF) for harsh industrial environments.
• Compatible with 3300 XL 5-meter and 9-meter Proximitor sensor systems.

Applications

Reverse mount probes are typically applied where space constraints prevent external probe mounting or where a protective housing sleeve is used. Common applications include:

• Shaft vibration and axial position monitoring in steam or gas turbines, centrifugal compressors, and electric motors.
• Fluid-film bearing clearance measurements in heavy rotating industrial machinery.
• Hydrocarbon pumps, gearboxes, and generators operating in industrial environments.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mounting Casing: Reverse mount probes are installed through the reverse end of a housing sleeve. Ensure the lock nut is tightened securely. Do not exceed the maximum thread engagement length of 0.563 inches to prevent binding.
• Probe Gapping: Set the nominal target gap using a caliper or by monitoring the Proximitor sensor output. Standard gap is typically 1.27 mm (50 mils) to 2.0 mm (80 mils).
• Connector Handling: Connection between the probe and extension cable ClickLoc connectors must be finger tight. Avoid over-tightening with metal pliers unless using standard non-XL stainless steel connectors, which require an extra 1/8 turn.
• Cable Routing: Route the coaxial cable avoiding sharp bends. Maintain a minimum bend radius of 25.4 mm (1.0 inch) for standard cables to avoid attenuation or signal distortion. Prevent cable contact with abrasive rotating components.
• Moisture and Dirt Protection: Use appropriate silicone tape or connector protectors when the connection is exposed to high humidity, moisture, or oil spray.

Compliance and Certifications

This probe configuration is manufactured under ISO 9001 quality management standards and is suitable for general-purpose applications where hazardous area certifications are not required.