Bently Nevada 330901-00-12-70-01-05 3300 NSv Proximity Probe

Description

Fully threaded 1/4-28 UNF-2A steel probe case (Option 00) with a 1.2 in overall case length (Option 12) and a 7.0 m total standard cable length (Option 70) specifies the 330901-00-12-70-01-05 configuration of this 3300 NSv proximity probe.

This unarmored probe configuration includes a miniature coaxial ClickLoc connector equipped with an integrated fluorosilicone connector protector (Option 01) and carries multiple hazardous area agency approvals (Option 05) for use in explosive atmospheres. It pairs with a 3300 XL NSv Proximitor Sensor and extension cable to measure non-contact eddy-current fluid-film bearing displacement on industrial rotating machinery where shaft diameters are smaller than 20 mm (0.8 in) or mounting clearances are tightly constrained. Unlike armored variants, this standard unarmored configuration offers optimal cable routing flexibility within clean conduit systems while maintaining robust insulation properties.

Features

• Option 00 specifies a fully threaded 1/4-28 UNF-2A probe case with 0.0 in of unthreaded length.
• Option 12 provides a 1.2 in overall case length for installations with minimal axial clearance.
• Option 70 supplies a 7.0 m total system length, allowing direct connection to the Proximitor sensor.
• Option 01 features a ClickLoc coaxial connector with a pre-installed fluorosilicone connector protector that seals out moisture and oil.
• Option 05 offers multiple international certifications for hazardous environments, including ATEX, IECEx, and CSA approvals.
• Fluoroplastic (FEP) cable insulation provides resistance to chemicals and elevated temperatures.
• High-strength polyphenylene sulfide (PPS) tip material resists erosion in harsh industrial atmospheres.

Applications

• Radial vibration and axial position measurements on high-speed rotating shafts smaller than 20 mm (0.8 in).
• Aeroderivative gas turbines, centrifugal compressors, and small steam turbines.
• Small-bore industrial pumps, gearboxes, and electric motors with limited target area geometry.
• Tight clearance machinery monitoring requiring standard mount unarmored transducer configurations.

Ordering Information

Technical Specifications

Installation Guidelines

• Hand-tighten the probe case into the threaded mounting port, then torque to a recommended torque of 5.1 N m (45 in lb) with a maximum limit of 7.3 N m (65 in lb).
• Ensure the coaxial cable maintains a bend radius of at least 25.4 mm (1.0 in) along its routing path to avoid damage or transmission losses.
• Verify that the total combined length of the probe and extension cable matches the system calibration length (e.g., a 7.0 m probe connects directly to a 7.0 m Proximitor sensor without an intermediate extension cable).
• Avoid exposing the probe seal to temperatures below -34 degC (-30 degF) for sustained periods to maintain pressure seal integrity.
• Ensure the fluorosilicone connector protector is seated correctly on the connection point to keep out moisture, oil, and dust.

Compliance and Certifications

• EMC: European Community Directive 2014/30/EU; Standards EN 61000-6-2 (Immunity) and EN 61000-6-4 (Emissions).
• RoHS: European Community Directive 2011/65/EU; China RoHS compliant (EFUP 15 years per SJ/T 11364-2024).
• Functional Safety: SIL 2 (HFT = 0) and SIL 3 (HFT = 1) certified.
• Hazardous Areas (Option 05): CSA/cNRTLus, ATEX, and IECEx approvals. Intrinsically Safe Ex ia IIC T5...T1 Ga and Ex ia IIIC T90degC...T280degC Dc; Non-Sparking/Increased Safety Ex nA/Ex ec IIC T5...T1 Gc for Zone 2 / Division 2 environments.