Description

Engineered for highly accurate, non-contact shaft position and vibration measurements, the Bently Nevada 330101-00-12-10-02-05 is a high-performance 3300 XL 8 mm Proximity Probe designed for use within demanding industrial machinery protection systems. It operates on the eddy-current principle to continuously track dynamic displacement, enabling plant operators to detect micro-level rotor vibration and position deviations on critical turbomachinery before mechanical wear or catastrophic failure occurs.

This specific configuration is uniquely defined by its mechanical dimensions and approvals. With an unthreaded case option of 0.0 inches (0 mm) and a compact 1.2-inch (30 mm) overall case length, this probe is tailored for close-coupled bearings and low-clearance housings where a standard longer probe body would interfere. It comes equipped with a 1.0-meter (3.3 feet) standard coaxial cable terminated with a miniature coaxial ClickLoc connector (without connector protector), and is certified under standard hazardous area approvals (CSA, ATEX, IECEx) to ensure seamless and safe integration into explosive or volatile industrial environments.

Features

• Rugged 8 mm tip diameter proximity probe optimized for reliable eddy-current displacement measurements.
• Features polyphenylene sulfide (PPS) tip material and AISI 303/304 stainless steel casing for superior robustness in high-vibration and corrosive machinery environments.
• Flush-mount profile featuring 0.0 inches of unthreaded length and a short 1.2-inch overall case length for compact mounting applications.
• Standard 1.0-meter (3.3 feet) triaxial cable insulated with fluoroethylene propylene (FEP) to resist high-temperature chemical exposure.
• Supplied with a secure miniature coaxial ClickLoc connector for quick, click-to-lock connection stability.
• Fully certified under standard international agency approvals (CSA, ATEX, IECEx) for installation in Class I, Division 1, and Zone 0 hazardous locations.

Applications

• Continuous radial vibration and axial position monitoring in high-speed steam and gas turbines.
• Rotor thrust and displacement tracking in heavy industrial centrifugal compressors and pumps.
• Bearing oil film thickness and shaft orbit analysis on large electric motor or generator bearings.
• Critical rotating machinery protection within oil and gas refineries, petrochemical plants, and power generation facilities.

Ordering Information

Technical Specifications

Connections and Interfaces

The probe utilizes a dedicated coaxial connector interface designed to maintain low loss, low noise transmission in industrial turbine environments:

Installation Guidelines

• Always gap the probe per system calibration, typically to a value of -9 Vdc or approximately 1.27 mm (50 mils) against an AISI 4140 steel target.
• Ensure that field wiring and the coaxial cables are routed through dedicated conduit and kept clear of high-voltage or power transmission lines.
• Do not exceed the recommended installation torque of 7.5 N-m (66 in-lbf) during case mounting to prevent thread damage or binding within the bracket.
• Maintain a minimum bend radius of 25.4 mm (1.0 in) along all parts of the FEP cable run to secure electrical integrity.

Compliance and Certifications

• CSA/US/C: Class I, Zone 0, AEx ia IIC; Class I, Div 1, Groups A, B, C, D (when installed with appropriate barriers)
• ATEX/IECEx: II 1 G Ex ia IIC T1...T5 Ga
• CE: Electromagnetic Compatibility Directive compliant