Bently Nevada 330102-36-80-10-02-05 3300 XL 8mm Proximity Probe

Description

Partially threaded 3/8-24 UNF steel probe body with 3.6 inches of unthreaded length (Option 36), an 8.0 inches overall case length (Option 80), and a 1.0 m armored cable (Option 10) — 330102-36-80-10-02-05. This 3300 XL 8 mm proximity probe configuration provides mechanical defense with integrated stainless steel armor, distinguishing it from unarmored variants like the 330101 series. The assembly terminates in a miniature male coaxial ClickLoc connector (Option 02) without a connector protector, and carries hazardous area approvals under Option 05 (CSA, ATEX, IECEx) for installation in classified zones.

The probe functions as an eddy-current transducer that pairs with a 3300 XL Proximitor sensor and extension cable. It operates by generating a high-frequency electromagnetic field that interacts with a metal target, converting physical displacement into proportional electrical voltage. This specific configuration is used for shaft vibration, axial position, and speed measurements on industrial machinery such as steam turbines, centrifugal compressors, and large pumps.

Features

• Option 36 specifies a 3.6-inch (91.4 mm) unthreaded length on a partially threaded 3/8-24 UNF-2A probe case.
• Option 80 provides an 8.0-inch (203.2 mm) overall case length for deep-reach installation in machinery housings.
• Option 10 indicates a 1.0-meter (3.3 feet) total cable length, suitable for routing to close-coupled junction boxes.
• Option 02 equips a miniature male coaxial ClickLoc connector on a standard coaxial cable without an external protector sleeve.
• Option 05 designates international agency approvals including CSA, ATEX, and IECEx for hazardous environments.
• Integrated stainless steel armor (flexible conduit) covers the coaxial cable to prevent mechanical wear and abrasion.

Applications

• Radial vibration and axial position measurements on steam turbines, gas turbines, and turbo-compressors.
• Vibration monitoring of fluid-film bearings in large generators, gearboxes, and industrial process pumps.
• Mechanical protection in abrasive environments where cables are exposed to fly ash, metal shavings, or physical wear.
• Hazardous area machinery monitoring in oil refineries, petrochemical plants, and natural gas facilities.

Ordering Information

Technical Specifications

Installation Guidelines

• Maintain minimum clearances to surrounding metal to prevent unintended eddy-current path interference. For an 8 mm probe, a minimum of 40 mm (1.6 in) diameter flat clearance area is recommended.
• Avoid over-tightening the probe during installation. The maximum torque limit for 3/8-24 UNF threads is 11.2 N-m (100 in-lb).
• Protect the ClickLoc miniature connector from moisture and debris. Use self-fusing silicone tape or connector protector boots if exposed to liquids.
• Ensure the bend radius of the armored cable does not fall below 25.4 mm (1.0 in) to prevent damage to the inner coaxial core.

Compliance and Certifications

• CSA: Class I, Division 1, Groups A, B, C, D; Class II, Groups E, F, G; Class III
• ATEX/IECEx: II 1 G Ex ia IIC T5...T1 Ga; II 1 D Ex ia IIIC T90degC...T280degC Dc
• CE Mark: Complies with applicable European directives
• Standard configuration without trailing country-specific certification packages (such as -CN for NEPSI/CCC).