Bently Nevada 330901-00-70-10-02-05 3300 NSv Proximity Probe

Description

330901-00-70-10-02-05: 3300 NSv proximity probe with 1/4-28 UNF thread and no armor. Option 00 specifies a 0.0-inch unthreaded length, Option 70 designates a 7.0-inch overall case length, and Option 10 indicates a 1.0-meter total length. Option 02 provides a miniature coaxial ClickLoc connector with standard coaxial cable, and Option 05 includes multiple agency approvals for hazardous area environments.

This transducer configuration is used in the 3300 XL NSv Proximity Transducer System, which is suited for measurements on small-bore machinery or where mounting clearance is restricted. It operates with eddy-current technology to track shaft vibration and axial position, matching the system characteristics of the 330980 Proximitor Sensor and 330930 extension cable.

Features

• Option 00 specifies 0.0 in (0 mm) unthreaded length.
• Option 70 specifies 7.0 in (178 mm) overall case length.
• Option 10 specifies 1.0 meter (39 in) total probe length.
• Option 02 specifies a miniature coaxial ClickLoc connector with standard FEP-insulated coaxial cable.
• Option 05 includes multiple hazardous area approvals for global environments.
• 1/4-28 UNF-2A thread configuration.
• Unarmored design suited for standard conduit or internal mounting.
• Gold-plated ClickLoc connector locks to prevent loose connections.

Applications

• Fluid-film bearing measurements on small-bore rotating machinery.
• High-speed machinery with restricted target areas or tight mechanical clearance.
• Centrifugal compressors, aeroderivative gas turbines, and small pumps.
• Shaft vibration and axial position monitoring in industrial environments.

Ordering Information

Technical Specifications

Installation Guidelines

Mounting this probe requires tapping a hole matching the 1/4-28 UNF-2A thread. A #3 or larger tap drill is recommended. The maximum thread engagement length is 0.375 inches. Exceeding this length during installation can lead to binding or damage. Ensure the probe tip maintains a clear view of the target without obstructions. The recommended gap setting of 1.0 mm (40 mils) should be verified using a voltmeter or feeler gauge. Minimize bend radii of the coaxial cable to no less than 25.4 mm (1.0 in) to prevent internal electrical path degradation.

Compliance and Certifications

This transducer is approved for use in hazardous areas under various standards when combined with the appropriate Bently Nevada Proximitor and safety barriers:

• ATEX/IECEx: Intrinsically safe (Ex ia IIC T5...T1 Ga), non-sparking/increased safety (Ex nA/ec IIC T5...T1 Gc).
• cNRTLus: Class I, Zone 0: AEx/Ex ia IIC T4/T5 Ga; Class I, Groups A, B, C, and D; Class II, Groups E, F, G; Class III.
• SIL Rating: SIL 2 (HFT=0) and SIL 3 (HFT=1) certified for functional safety loops.
• EMC Directive: 2014/30/EU compliant with EN 61000-6-2 and EN 61000-6-4.
• RoHS Directive: 2011/65/EU compliant.