Bently Nevada 330902-00-95-05-02-05 3300 NSv Proximity Probes

Description

An overall case length of 9.5 inches (Option 95) with a fully threaded 1/4-28 UNF-2A armored case (Option 00) defines the 330902-00-95-05-02-05 3300 NSv Proximity Probe. This industrial transducer component utilizes eddy-current technology to execute non-contact displacement measurements on target geometries with restricted clearance or reduced target area.

Compared to the unarmored 330901 variant, the 330902 model incorporates integrated stainless steel armor for robust mechanical protection of the coaxial cable. This specific configuration features a 0.5-meter (20-inch) total length, a standard ClickLoc coaxial connector, and multiple hazardous area approvals, making it compatible with the 330980 Proximitor Sensor and 330930 extension cable in demanding rotating machinery environments.

Features

• Option 00 specifies a fully threaded 1/4-28 UNF-2A probe case with 0.0 inches of unthreaded length.
• Option 95 provides a 9.5-inch overall case length to reach deeply recessed shaft target areas.
• Option 05 designates a short 0.5-meter total probe cable length for tight installation layouts.
• Option 02 provides a gold-plated miniature ClickLoc coaxial connector with a standard cable profile.
• Option 05 designates multiple agency approvals certified for hazardous and intrinsically safe zones.
• Integrated stainless steel armor shields the internal 75-ohm coaxial cabling against mechanical damage.
• Viton O-ring pressure seal acts as an environmental barrier between the probe tip and the stainless steel case.

Applications

• Radial vibration and axial position measurements in small-bore rotating machinery.
• Shaft displacement monitoring on high-speed aeroderivative gas turbines.
• Machinery protection applications with limited target geometries and tight structural clearances.
• Industrial monitoring installations requiring certified intrinsically safe transducer components.

Ordering Information

Technical Specifications

Installation Guidelines

• Verify that the total combined length of the probe (0.5 m) and extension cable matches the calibrated Proximitor Sensor system length.
• Use a maximum installation torque of 5.1 N m (45 in lb) for this 1/4-28 probe case.
• Ensure the probe cabling is routed away from sharp edges, observing the minimum bend radius of 25.4 mm (1.0 in).
• Install connector protectors or apply self-fusing silicone tape to prevent moisture or process liquids from entering the coaxial connection.

Compliance and Certifications

• European Community Directives: EMC Directive 2014/30/EU, RoHS Directive 2011/65/EU
• Functional Safety: SIL 2 (HFT=0), SIL 3 (HFT=1) certified
• Hazardous Area Approvals (Option 05): ATEX/IECEx Class I, Zone 0 (Ex ia IIC T4/T5 Ga); CSA Class I, Zone 0 (AEx/Ex ia IIC Ga), Class I, Groups A, B, C, D