Bently Nevada 330910-00-08-50-01-05 3300 NSv Proximity Probe

Description

330910-00-08-50-01-05 specifies this 3300 NSv proximity probe configuration featuring an M10x1 metric thread with integral stainless steel armor. Option 00 specifies a fully threaded 0 mm unthreaded length, paired with an 80 mm overall case length (Option 08) and a 5.0 meter total system length (Option 50). This variant includes a miniature coaxial ClickLoc connector with a pre-installed connector protector (Option 01) and holds multiple international hazardous area certifications (Option 05).

This probe operates within the 3300 XL NSv proximity transducer system, which is used for non-contact displacement measurements where target areas are reduced or clearance is limited. The system employs a 3.2 mm tip diameter probe to obtain vibration and position signals on small-diameter shafts or targets with tight installation geometry, contrasting with larger 8 mm systems.

Features

• M10x1 metric thread with integrated flexible stainless steel armor to prevent mechanical abrasion of the cable.
• 0 mm unthreaded length (fully threaded case) allows maximum mounting depth adjustment.
• 80 mm overall case length provides mechanical reach inside machine housings.
• 5.0 meter total probe length matches system calibration requirements directly without short-length extensions.
• Miniature coaxial ClickLoc connector on standard FEP-insulated coaxial cable includes a factory-installed connector protector to seal out moisture and fluids.
• Multiple hazardous area approvals under Option 05, including CSA, ATEX, and IECEx for Class I Zone 0, Zone 2, Division 1, and Division 2 installations.

Applications

• Radial vibration and axial position measurements on rotating machinery with shaft diameters smaller than 51 mm (2 inches).
• Aeroderivative gas turbines, process gas compressors, centrifugal air compressors, refrigeration compressors, and auxiliary gearboxes.
• Tachometer, zero-speed, and phase reference (Keyphasor) measurements in tight spaces or recessed cavities.

Ordering Information

Technical Specifications

Installation Guidelines

When installing this proximity probe, maintain standard practices for eddy-current transducers. Ensure proper thread engagement with the machine casing to avoid binding (maximum recommended engagement for M10x1 threads is 15 mm). Use a class-matched thread fit to prevent thread stripping or damage. Grounding and shielding must conform to Bently Nevada standard drawings. The probe-to-extension cable connection must be secured and protected; if the connection is made inside the machine or exposed to turbine oil, use appropriate connector protectors or sealing tapes rather than general-purpose sleeves to maintain electrical signal insulation.

Compliance and Certifications

• EMC Standards: Complies with European Community Directive 2014/30/EU (EN 61000-6-2 and EN 61000-6-4 for Industrial Environments).
• RoHS: Complies with European Community Directive 2011/65/EU and China RoHS requirements.
• Maritime: Meets standard classification rules for Offshore Units and Structures.
• Functional Safety: SIL 2 certified (HFT = 0), SIL 3 certified (HFT = 1) when implemented as part of a complete safety-instrumented system.
• Hazardous Area Certifications (Option 05):
  • Class I, Zone 0: AEx/Ex ia IIC T4/T5 Ga
  • Class I, Groups A, B, C, and D, Class II, Groups E, F, and G, Class III (Div 1/Div 2)
  • ATEX/IECEx: Ex ia IIC T5...T1 Ga, Ex ia IIIC T90 degC...T280 degC Dc
  • ATEX/IECEx: Ex nA IIC T5...T1 Gc, Ex ec IIC T5...T1 Gc