Bently Nevada 330901-00-90-05-02-05 3300 NSv Proximity Probe

Description

330901-00-90-05-02-05 specifies this 3300 NSv proximity probe configuration featuring a 1/4-28 UNF unarmored thread, 0.0 in unthreaded length (Option 00), 9.0 in overall case length (Option 90), 0.5 meter (20 in) total probe length (Option 05), a miniature coaxial ClickLoc connector without a connector protector (Option 02), and multiple agency approvals (Option 05).

This unarmored variant with 1/4-28 UNF thread is used for installations requiring a standard mount without mechanical armor. Unlike armored siblings or metric alternatives, this probe incorporates a standard 75 ohm coaxial cable terminated with a ClickLoc connector, designed for tight clearances where standard 8 mm probes cannot fit. The 9.0 inch case length provides extended reach through machine housings, while the 0.5 meter total probe length is designed to connect to a 330930 extension cable in a 5 meter or 7 meter transducer system.

Features

• Option 00 unthreaded body provides a fully threaded 1/4-28 UNF-2A stainless steel case for maximum adjustment depth.
• Option 90 case length provides a 9.0-inch overall length to accommodate deep machinery housings or thick wall penetrations.
• Option 05 total length provides a 0.5-meter (20-inch) FEP-insulated coaxial cable.
• Option 02 connector provides a miniature coaxial ClickLoc connector for coupling to a 330930 extension cable.
• Option 05 agency approval package certifies the probe for multiple international hazardous area standards including ATEX, IECEx, and CSA.
• Unarmored 1/4-28 UNF design facilitates straightforward installation in small-bore machinery or tight clearances where armor is not required.
• Polyphenylene sulfide (PPS) tip material allows operation in harsh chemical environments and high-temperature conditions.

Applications

This probe is used in machinery vibration and position monitoring applications including:

• Shaft vibration and axial position measurement on high-speed rotating machinery with limited target size.
• Radial and axial displacement monitoring in aeroderivative gas turbines [MODEL TRAITS].
• Small-bore machinery with tight physical clearances where standard 5 mm or 8 mm probes cannot be installed.
• Applications with limited target geometry requiring reduced cross-talk between adjacent sensors.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

Ensure proper probe gapping at approximately 1.0 mm (40 mils) to establish the midpoint of the 1.5 mm linear range. Keep the probe cable routed away from high-voltage conduits to prevent electromagnetic interference. Standard mounting requires a 7/16-inch hex wrench for installation. Do not exceed the maximum case torque limit. Maintain a minimum separation of 25 mm (1.0 in) for axial position measurements or 23 mm (0.9 in) for radial vibration measurements to prevent transducer cross-talk.

Compliance and Certifications