Description

The Bently Nevada 330101-00-52-10-02-05 is a high-precision, unarmored 8 mm proximity probe configuration within the 3300 XL Proximity Transducer System. This specific model features a fully threaded 3/8-24 UNF steel body with 0.0 inches of unthreaded length and a long 5.2-inch overall case length, making it ideal for deep bearing-housing mounts where standard short-case probes cannot reach. It comes equipped with a 1.0-meter (3.3 feet) standard coaxial cable terminated with a miniature coaxial ClickLoc connector (without a connector protector) and is fully certified for hazardous area installations under CSA, ATEX, and IECEx approvals. The probe works as a non-contact sensor that operates on the eddy-current principle to measure shaft vibration and position on critical rotating machinery.

Features

• Fully Threaded Body: Designed with 0.0 inches of unthreaded length to maximize mounting adjustability within threaded holes.
• Extended 5.2-Inch Case: Provides the necessary reach for deep bearing housings and heavy machine casings.
• Standard Non-Armored Cable: Features a lightweight 1.0-meter flexible coaxial cable for easy routing inside junction boxes.
• ClickLoc Coaxial Connector: Miniature coaxial ClickLoc connector (without connector protector) provides secure, vibration-resistant connection to extension cables.
• Hazardous Area Certifications: Fully approved with CSA, ATEX, and IECEx certifications (Option 05) for deployment in explosive environments.
• Eddy Current Principle: Operates reliably with a linear measurement range of 2.0 mm (80 mils) for high-accuracy displacement monitoring.

Applications

The Bently Nevada 330101-00-52-10-02-05 proximity probe is utilized in demanding industrial environments where reliable, non-contact displacement measurements are required for rotating machinery protection. Typical applications include:

• Radial vibration and shaft position monitoring in medium-to-large steam and gas turbines.
• Rotor axial displacement measurement in industrial compressors, turbo-compressors, and high-pressure pumps.
• Thrust position monitoring in critical gearboxes and generators.
• Shaft centerline tracking and machine casing expansion measurements.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

To ensure maximum accuracy and reliability of the 3300 XL 8 mm Proximity Probe, follow these installation procedures:

• Probe Gapping: Set the mechanical probe gap using a feeler gauge or by monitoring the Proximitor sensor output voltage. A standard radial gap of 1.27 mm (50 mils) should register approximately -9 Vdc on the signal line.
• Unthreaded Selection: Because this probe has 0.0 inches of unthreaded length (fully threaded), ensure the mounting bracket or hole is fully tapped to prevent thread damage when screwing the probe in.
• Cable Protection: Route the coaxial cable through protective conduit or cable trays to prevent pinching, rubbing, or sharp bending. Do not exceed the minimum bend radius of the coaxial cable.
• Isolation and Shielding: Ensure the probe body is electrically grounded to the machine casing, and properly ground the extension cable shield at the Proximitor sensor terminal strip.

Compliance and Certifications

This 330101 proximity probe configuration is certified for use in hazardous industrial environments under the following agency approvals (Option 05):

• CSA: Approved for hazardous areas in North America
• ATEX: Certified for explosive atmospheres in Europe (Zone 0/1/2)
• IECEx: Global certification for hazardous environments