Bently Nevada 330909-00-20-05-02-05 3300 NSv Proximity Probes

Description

330909-00-20-05-02-05: Bently Nevada 3300 NSv proximity probe with a 3/8-24 UNF threaded case, built-in stainless steel armor, a 0.0-inch unthreaded length, a 2.0-inch case length, a 0.5-meter total lead length, a miniature coaxial ClickLoc connector, and multiple agency approvals.

The integrated stainless steel armor provides robust mechanical protection against physical damage and harsh industrial media, distinguishing this 330909 variant from unarmored sibling models such as the 330908. By utilizing gold-plated brass ClickLoc coaxial connectors and high-strength FEP-insulated cabling, the system ensures stable electrical connections under constant machinery vibration.

Features

• Option 00 specifies a 0.0-inch unthreaded length, allowing full-thread engagement for deep-set or surface-mount casing installations.
• Option 20 provides a 2.0-inch overall case length, ideal for industrial housings with limited depth.
• Option 05 defines a compact 0.5-meter (20-inch) total probe length, minimizing excess cable run inside casing enclosures.
• Option 02 equips the probe with a miniature coaxial ClickLoc connector on a standard cable, offering secure, lock-in-place electrical connections.
• Option 05 designates multiple agency approvals for deployment in classified hazardous locations.
• Standard stainless steel armor wraps the coaxial cable to prevent abrasion, pinching, and mechanical wear in severe environments.

Applications

The 3300 NSv proximity probe is primarily used for non-contact vibration, displacement, and speed measurements on rotating machinery with restricted target areas. Common industrial applications include:

• Vibration and thrust position monitoring in small-bore rotating machines
• Radial and axial shaft displacement on high-speed aeroderivative turbines
• Compressor and pump shaft vibration diagnostics in petrochemical plants
• Industrial processes where high chemical resistance against oils and process gases is required

Ordering Information

Technical Specifications

Installation Guidelines

Proper installation of the 3300 NSv proximity probe ensures precise calibration and long-term mechanical reliability:

• Thread Torque: For 3/8-24 UNF probe cases, do not exceed the recommended installation torque of 11.3 N m (100 in-lb). If threading the first three threads only, limit torque to 7.5 N m (66 in-lb).
• Thread Engagement: The maximum thread engagement length for 3/8-24 threads is 0.563 inches (1.5 times the nominal thread diameter). Excess engagement may cause binding during installation.
• Minimum Bend Radius: Maintain a minimum cable bend radius of 25.4 mm (1.0 in) along the armored lead to prevent damage to the internal coaxial core.
• Connector Care: Clean and dry the gold-plated brass ClickLoc connectors before coupling. Hand-tighten the connectors until they click into place. Do not use tools or apply excessive torque.

Compliance and Certifications

The 3300 NSv Proximity Probe is built for demanding industrial environments and is certified under multiple global standards:

• Hazardous Area Approvals (Option 05): Certified for Intrinsically Safe (Ex ia) and Non-Incendive/Increased Safety (Ex nA/ec) installations when paired with an approved Proximitor sensor and barriers.
• ATEX/IECEx: Ex ia IIC T5...T1 Ga, Ex ia IIIC T90 degC...T280 degC Dc, Ex nA IIC T5...T1 Gc, Ex ec IIC T5...T1 Gc.
• US/Canada (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, and G; Class III.
• EMC: EN 61000-6-2 (Industrial Immunity) and EN 61000-6-4 (Industrial Emissions).
• RoHS: Complies with European Directive 2011/65/EU and China RoHS regulations.
• Functional Safety: SIL 2 certified (HFT = 0), SIL 3 capable (HFT = 1).