Description

The Bently Nevada 330101-00-34-10-02-05 is an 8 mm proximity probe configuration belonging to the 3300 XL transducer series. This specific model is configured with 0.0 inches of unthreaded length, a 3.4-inch fully threaded stainless steel case, a 1.0-meter standard cable, a miniature coaxial ClickLoc connector, and CSA/ATEX/IECEx hazardous area approvals. Unlike sibling configurations that include unthreaded case offsets or stainless steel armor sleeves, this probe is fully threaded across its entire body to provide maximum installation flexibility and fine-tuning control inside standard 3/8-24 UNF threaded ports or mounting brackets.

Operating on the eddy-current principle, this non-contact sensor detects shaft vibration and dynamic position displacements on critical rotating machinery. Designed to function seamlessly as part of a complete 3300 XL monitoring system, the probe pairs with a 3300 XL Proximitor sensor (330180 series) and an extension cable (330130 series) to output a highly stable analog voltage signal. It features an industry-standard scale factor of 7.87 V/mm (200 mV/mil) across a 2.0 mm (80 mils) linear range, ensuring reliable performance in harsh heavy-industry environments, including steam/gas turbines, centrifugal compressors, and power generation pumps.

Features

• Fully threaded 3.4-inch case with 0.0 inches of unthreaded portion, offering optimal threading engagement and positioning depth.
• High-precision 8 mm probe tip diameter designed for non-contact shaft displacement and proximity measurements.
• Standard 1.0-meter (3.3 feet) flexible cable without heavy outer armor, allowing easier routing in tight machine housings.
• Equipped with a miniature coaxial ClickLoc connector to establish a reliable, vibration-proof connection to the extension cable.
• Global hazardous area approvals (Option 05) with CSA, ATEX, and IECEx safety certifications for intrinsically safe installations.
• Rugged polyphenylene sulfide (PPS) tip material and stainless steel casing for resistance to hot lubricating oils, moisture, and chemical attack.

Applications

• Radial vibration monitoring of gas and steam turbine rotor shafts.
• Axial thrust position tracking in high-pressure centrifugal compressors and turbochargers.
• Rotor displacement and bearing wear measurement in large boiler feed pumps and cooling-water pumps.
• Permanent machinery protection and condition monitoring systems complying with API 670 standards.

Ordering Information

Technical Specifications

Installation Guidelines

• Always adjust the probe physical gap using a digital voltmeter connected to the Proximitor sensor outputs; set target voltage to approximately -10 Vdc to align with the center of the linear calibration range.
• Ensure the 3/8-24 UNF threaded port is clean, deburred, and free of metallic debris prior to threading the fully threaded stainless steel probe case.
• Maintain minimum clearance from surrounding non-target metals to prevent eddy-current field distortion and inaccurate readings.
• Route the standard 1.0-meter probe cable in a dedicated protective conduit, separating it from high-voltage cables to prevent electromagnetic noise coupling.

Compliance and Certifications

• Hazardous Area Certifications: Certified under CSA, ATEX, and IECEx for intrinsic safety (Ex ia) and non-incendive environments (Ex nA/ec).
• Standards Compliance: Fully compliant with API 670 requirements for non-contact machinery displacement monitoring.