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

Description

330901-00-10-10-02-05 specifies this 3300 NSv proximity probe configuration, featuring a 1/4-28 UNF thread without stainless steel armor, a 0.0 in unthreaded length (Option 00), a 1.0 in case length (Option 10), a 1.0 m (39 in) total length (Option 10), a ClickLoc miniature coaxial connector with standard FEP-insulated coaxial cable (Option 02), and Multiple Approvals certification (Option 05).

This eddy-current non-contacting displacement probe is a core transducer component for the 3300 XL NSv Proximity Transducer System. It is intended for installations with tight clearance requirements, small-bore machinery, or reduced target areas where standard 5 mm or 8 mm systems cannot be used due to counterbore, side-view, or rear-view restrictions. It is typically used for radial vibration, radial position, and axial position measurements on fluid-filmed bearing machines with shafts smaller than 51 mm (2.0 in) or flat targets smaller than 15 mm (0.6 in). The probe is fully compatible and interchangeable with previous 3300 RAM proximity probes and operates by connecting to a 3300 NSv extension cable and a 3300 XL NSv Proximitor Sensor.

Features

• 1/4-28 UNF-2A thread configuration without stainless steel armor for direct, standard mounting applications.
• 0.0 in unthreaded length (Option 00) allowing full thread engagement in compact spaces.
• 1.0 in overall case length (Option 10) providing a low-profile installation depth.
• 1.0 meter (39 in) FEP-insulated coaxial cable (Option 10) for standard system connections.
• Miniature male coaxial ClickLoc connector (Option 02) with gold-plated brass contacts preventing connection loosening.
• Option 05 Multiple Approvals package covering ATEX, IECEx, and North American hazardous location standards.
• Polyphenylene sulfide (PPS) probe tip material for increased chemical resistance in process gas environments.
• TipLoc molding and CableLoc design providing up to 220 N (50 lb) of pull strength between the probe tip, case, and lead.

Applications

• Radial vibration and axial position measurements on centrifugal, refrigeration, and process gas compressors.
• Tachometer, zero-speed, and phase reference (Keyphasor) monitoring on aeroderivative gas turbines.
• Machinery protection on high-speed rotating equipment with tight clearance constraints and small shaft geometries.

Ordering Information

Technical Specifications

Installation Guidelines

• When drilling and tapping a mounting hole for this 1/4-28 UNF probe, a #3 or larger tap drill is recommended.
• Avoid exceeding the maximum recommended installation torque of 5.1 N-m (45 in-lb) for 1/4-28 UNF probe cases. The absolute maximum rated torque is 7.3 N-m (65 in-lb).
• Ensure the minimum bend radius of 25.4 mm (1.0 in) is maintained for the coaxial cable to prevent mechanical or signal damage.
• Verify that the combined length of the probe and extension cable equals the designated system length of the Proximitor Sensor (typically 5.0 or 7.0 meters).
• Sustained exposure to temperatures below -34 degC may degrade the internal Viton pressure seal.

Compliance and Certifications

• ATEX/IECEx: Intrinsically safe for Class I, Zone 0, Ex ia IIC Ga (when installed with approved barriers).
• CSA/NRTL/C: Class I, Zone 0, AEx/Ex ia IIC Ga; Class I, Groups A, B, C, and D; Class II, Groups E, F, and G; Class III.
• EMC Directive: 2014/30/EU (EN 61000-6-2 and EN 61000-6-4 standards).
• RoHS Directive: 2011/65/EU and China RoHS compliance (EFUP 15 years).
• Functional Safety: Certified for SIL 2 (HFT = 0) and SIL 3 (HFT = 1) applications.