Bently Nevada 330901-00-09-70-02-05 3300 NSv Proximity Probes

Description

Option 00 (0.0 in unthreaded length) and Option 09 (0.9 in overall case length) specify the physical envelope of this 330901-00-09-70-02-05 3300 NSv proximity probe, which is calibrated for non-contact eddy-current displacement measurements on small-diameter shafts and in tight spaces. It provides radial vibration and axial position feedback under severe industrial conditions.

In contrast to armored variants such as the 330902 model, this non-armored 1/4-28 UNF-2A standard mount probe is intended for installations within machinery where external cable routing does not require mechanical protection conduit. It operates in conjunction with the 330980 Proximitor Sensor and 330930 Extension Cable as a matched system with a total length of 7.0 meters.

Features

• Threaded 1/4-28 UNF-2A steel probe case without protective armor
• Zero unthreaded length (0.0 in) for maximized thread engagement in thin-walled casings
• 0.9-inch overall case length suitable for tight clearance envelopes
• 7.0-meter integrated standard cable with ClickLoc miniature coaxial connector
• Multiple international agency approvals (Option 05) for hazardous locations

Applications

• Shaft vibration and axial position monitoring on small-bore machinery
• Rotor dynamics measurements on high-speed equipment with limited target geometry
• Displacement monitoring in aeroderivative turbines and industrial gearboxes
• Tight clearance non-contact sensing where space constraints restrict larger probes

Ordering Information

Technical Specifications

Installation Guidelines

Standard mount 1/4-28 UNF thread probes are supplied with a 7/16-inch lock nut and 7/32-inch wrench flats. Ensure that the mounting bracket is rigid to avoid false vibration readings, and check that the probe-to-extension-cable connector is insulated using silicone tape or connector protectors to prevent oil and moisture intrusion. Sustained exposure of the Viton seal to temperatures below -34 degC (-30 degF) may compromise the pressure barrier.

Compliance and Certifications

• EMC Standards: EN 61000-6-2, EN 61000-6-4 (EMC Directive 2014/30/EU)
• RoHS Standards: ROHS Directive 2011/65/EU
• Hazardous Area Approvals: Class I, Zone 0: AEx/Ex ia IIC T4/T5 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III (ia approvals when installed per Bently drawing 141092)
• Functional Safety: SIL 2 certified