Description

The Bently Nevada 330101-00-12-10-02-CN is an 8 mm proximity probe belonging to the industry-standard 3300 XL 8 mm Proximity Transducer System. This specific configuration is distinguished from other variants in its family by featuring a 0.0 in unthreaded length (a completely threaded case), an overall case length of 1.2 in, and a 1.0 m total cable length. Terminated with a miniature coaxial ClickLoc connector on a standard, non-armored cable, it is equipped with the specialized -CN China hazardous area approval package, carrying NEPSI and CCC certifications required for equipment deployed in industrial environments in China.

Operating on the eddy-current principle, this non-contacting probe provides high-precision measurements of dynamic vibration and static shaft position. It forms a complete measurement chain when integrated with a 3300 XL Proximitor sensor and an extension cable, interfacing reliably with a 3500 monitoring system rack. Designed for permanent installation within bearing housings or machine casings, its rugged construction provides protection for critical machinery, including steam and gas turbines, centrifugal compressors, and high-performance pumps.

Features

• Standard 8 mm probe tip encapsulated in high-strength polyphenylene sulfide (PPS) plastic for optimal environmental durability.
• Fully threaded 3/8-24 UNF-2A stainless steel case with 0.0 in unthreaded length for versatile machine mounting options.
• 1.0 m triaxial cable terminated with a gold-plated miniature coaxial ClickLoc connector.
• -CN country-specific package providing NEPSI and CCC safety markings for hazardous area compliance.
• Completely interchangeable with standard 3300 XL and 3300 Series 5 mm and 8 mm system components.
• Integrated Viton O-ring pressure seal between the probe tip and case to block oil and machinery fluid migration.

Applications

The Bently Nevada 330101-00-12-10-02-CN is deployed on critical rotating machinery assets where continuous machinery protection and diagnostics are mandatory. Key applications include:

• Steam turbine and gas turbine shaft vibration and axial displacement monitoring.
• Centrifugal compressor and expander rotor thrust and radial position measurement.
• Industrial pump and gearbox bearing housing vibration diagnostics.
• Critical rotating machinery installations in China requiring strict NEPSI or CCC hazardous area certifications.

Ordering Information

This product represents a customized configuration of the 3300 XL 8 mm proximity probe series. The orderable code is decoded as follows:

Technical Specifications

Installation Guidelines

To ensure precise vibration and position measurement, observe the following guidelines during installation:

• Mount the probe with the correct probe gap per system calibration, using a digital voltmeter to verify the corresponding DC bias voltage output at the Proximitor sensor.
• Do not exceed the maximum recommended torque of 33.9 N-m (300 in-lbf) when mounting. The first three threads can be torque-limited to 7.5 N-m (66 in-lbf) to prevent mechanical distortion of the probe housing.
• Route the triaxial cable through robust, grounded conduit or protective trays, keeping a minimum bend radius of 25.4 mm (1.0 in) to protect the internal core conductor.
• Maintain proper shielding and grounding configurations across the transducer loop; ground the shield at the Proximitor end only and ensure the probe body is electrically isolated from other stray signals.
• Connect the probe and extension coaxial connectors using finger-tight pressure; avoid overtightening ClickLoc couplers to ensure the integrity of the gold contacts.

Compliance and Certifications

The Bently Nevada 330101-00-12-10-02-CN is configured with localized safety and explosion protection approvals:

• NEPSI Ex ia / Ex nA / Ex ec: Certified for hazardous area zones in China.
• CCC: China Compulsory Certification for explosion protection systems.
• RoHS: Conforms to restriction of hazardous substances standards.