Description

The Bently Nevada 330101-00-34-15-02-05 is a specifically configured 8 mm proximity probe belonging to the 3300 XL series. Designed without mechanical armor, this version features a 3/8-24 UNF threaded body tailored for locations where physical space and thread dimensions require precise casing configurations. This specific unit features a 0.0 in unthreaded length combined with a 3.4 in overall case length, a 1.5-meter (4.9 feet) integrated standard cable terminated in a miniature coaxial ClickLoc connector, and comes with comprehensive CSA, ATEX, and IECEx hazardous area approvals (Option 05) for reliable permanent installation in hazardous industrial atmospheres.

Operating on the eddy-current principle, this non-contact sensor measures high-precision shaft dynamic vibration and static position. It functions as a key transducer component within the Bently Nevada 3300 XL 8 mm Transducer System, pairing directly with an external extension cable and 330180 series Proximitor sensor. The complete chain sends crucial dynamic voltage signals to machinery protection hardware, such as the 3500 rack system, to prevent catastrophic failures on steam turbines, gas turbines, compressors, and high-pressure pumps.

Features

• Unarmored 3/8-24 UNF Threaded Casing: Allows direct casing installation when external armor protection is not required.
• Fully Threaded 3.4-inch Case Length: Accommodates deep mounting brackets with zero unthreaded length (0.0 in) for flush or deep casing profiles.
• 1.5-Meter Integrated Cable: Compact standard cable length designed to maintain proper calibration when integrated into the overall 5-meter or 9-meter transducer chain.
• ClickLoc Coaxial Connection: Equipped with a miniature coaxial ClickLoc connector to provide robust, gold-plated, low-noise connections.
• Classified Area Protection: Comes standard with Option 05 approvals (CSA, ATEX, IECEx) for intrinsically safe and non-incendive environments.
• Industrial Strength Build: PPS tip molded directly to the stainless steel case body provides an exceptional seal against moisture, oils, and high-temperature environments.

Applications

This proximity probe is used for heavy-duty industrial rotating machinery condition monitoring and protection. Typical applications include:

• Radial shaft vibration measurement on steam and gas turbine bearings.
• Axial thrust position displacement monitoring in centrifugal compressors.
• Rotor dynamic tracking on high-pressure boiler feed pumps and industrial fans.
• Continuous monitoring of critical rotating elements in petrochemical, refinery, and power generation facilities.

Ordering Information

Technical Specifications

Installation Guidelines

Ensure correct system operation by following these certified installation procedures:

• Set the mechanical probe-to-target shaft gap to match system calibration specifications, typically target mid-range voltage output at approximately 1.27 mm (50 mils) distance.
• Route the unarmored cable securely through appropriate conduit or protective channels to protect against environmental degradation or mechanical pinching.
• Ensure proper structural clearances around the 8 mm tip to avoid adjacent metal interference that can distort the eddy-current field.
• Maintain appropriate system grounding by connecting cable shields only at the monitor or barrier terminal block, leaving the probe casing isolated to prevent ground loops.

Compliance and Certifications

• CSA: Certified for explosion-proof, dust-ignition proof, and intrinsically safe installations in North America.
• ATEX: Approved for use in potentially explosive atmospheres across European member states.
• IECEx: Internationally certified for explosive gas and dust environments.