Bently Nevada 330901-00-15-70-02-05 3300 NSv Proximity Probe

Description

Fully threaded 1/4-28 UNF stainless steel probe body (Option 00) with a 1.5 in overall case (Option 15) and a 7.0 m standard coaxial lead (Option 70) specifies this 3300 NSv proximity probe configuration — 330901-00-15-70-02-05.

Compared to the armored 330902 variant, this 330901 unarmored model provides high cable flexibility for tight bends. It is used in the 3300 NSv proximity probe transducer system to monitor radial vibration, radial position, or axial position in small-bore rotating machinery with strict side-view or counterbore clearances, such as centrifugal air compressors and refrigeration systems.

Features

• Option 00 specifies a 0.0 in unthreaded length, providing a fully threaded case over the entire case length.
• Option 15 specifies a 1.5 in overall case length with 1/4-28 UNF-2A threads.
• Option 70 provides a 7.0 m total length probe cable without additional extension requirements in standard loops.
• Option 02 includes a miniature coaxial ClickLoc connector on a standard unarmored 75 ohm coaxial cable.
• Option 05 delivers Multiple Approvals for hazardous area applications including CSA, ATEX, and IECEx certifications.
• PPS (Polyphenylene sulfide) tip material bonded to the stainless steel body with the patented TipLoc molding method.
• High chemical resistance suited for process gas environments and harsh industrial environments.

Applications

• Radial vibration and radial position measurements on shafts smaller than 51 mm (2 in).
• Axial position and thrust measurements on flat targets smaller than 15 mm (0.6 in).
• Industrial compressors including centrifugal, refrigeration, and process gas machinery with restrictive target clearance.
• Tachometer, zero-speed, and phase reference measurements (Keyphasor signals).

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the following installation practices are observed for optimal performance:

• Standard bend radius: Minimum 25.4 mm (1.0 in) for the unarmored coaxial cable.
• Recommended installation torque: 5.1 N-m (45 in-lb) for 1/4-28 UNF probe cases, with a maximum rated limit of 7.3 N-m (65 in-lb).
• Grounding: Isolate the probe tip and case from adjacent machinery metals to prevent signal interference. Run field wiring inside dedicated, grounded conduit systems.
• Connectors: Always lock the miniature ClickLoc coaxial connections by turning them until they click securely in place.

Compliance and Certifications

This transducer component complies with the following standards when used as a system:

• Multiple hazardous area approvals (Option 05): ATEX, IECEx, and CSA certifications for intrinsically safe (Zone 0/Class I Div 1) and non-incendive (Zone 2/Class I Div 2) installations.
• CE Mark: European Community Directive compliance under EMC Directive 2014/30/EU and RoHS Directive 2011/65/EU.
• Functional Safety: Rated for use in SIL 2 applications (HFT = 0) or SIL 3 applications (HFT = 1 in redundant systems).