Bently Nevada 330909-00-25-10-02-00 3300 NSv Proximity Probes

Description

Fully threaded 3/8-24 UNF stainless steel probe body (Option 00) with a 2.5 in overall case (Option 25) and 1.0 m total length (Option 10) featuring stainless steel armor specifies the 330909-00-25-10-02-00 3300 NSv Proximity Probe. This non-contact eddy-current displacement sensor is designed for tight-clearance and narrow-side-view industrial machine environments where standard-sized probes cannot be installed due to physical space or target geometry constraints.

This specific configuration includes flexible stainless steel armor protecting the fluoroethylene propylene (FEP) insulated coaxial cable, providing robust mechanical protection in demanding environments where abrasive particles, debris, or mechanical hazards are present. Unlike the unarmored version, the armored design shields the cable without compromising electrical performance. The miniature coaxial ClickLoc connector (Option 02) offers a secure and compact connection to the extension cable, and the absence of agency approvals (Option 00) makes it ideal for non-hazardous, general-purpose machinery monitoring applications.

Features

• Option 00 specifies a fully threaded 3/8-24 UNF stainless steel probe body with zero unthreaded length.
• Option 25 provides an overall case length of 2.5 inches (64 mm) for deep or thick machinery housing installations.
• Option 10 features a 1.0 meter (39 inches) 75 ohm FEP-insulated coaxial cable.
• Option 02 provides a miniature coaxial ClickLoc connector without a connector protector.
• Option 00 indicates that hazardous area approvals are not required, optimal for general-purpose plant areas.
• Flexible stainless steel armor provides advanced mechanical shielding against physical damage, shearing, and abrasions.
• Average Scale Factor of 7.87 V/mm (200 mV/mil) delivers standard output for narrow-side-view applications.
• Polyphenylene sulfide (PPS) probe tip offers excellent chemical resistance and mechanical durability at high temperatures.

Applications

• Shaft radial vibration and axial position measurements on high-speed rotating machinery with tight clearances.
• Small-bore machinery, aeroderivative gas turbines, and centrifugal compressors with limited target geometry.
• Applications requiring non-contact displacement monitoring where standard 8 mm or 5 mm probes do not fit.
• Industrial environments with potential abrasive or physical cable hazards requiring stainless steel armor protection.

Ordering Information

Technical Specifications

Installation Guidelines

• Avoid Over-Torquing: Follow standard thread engagement guidelines for 3/8-24 UNF threads to prevent mechanical damage to the probe housing.
• Probe Gap Setting: Set the nominal probe gap to 1.0 mm (40 mils) or approximately -9.0 Vdc to -10.0 Vdc output to center the measurement within the 1.5 mm (60 mils) linear range.
• Cable Routing: Ensure the minimum bend radius of the armored cable is respected during installation to avoid crimping or breaking the internal coaxial lead.
• Grounding and Shielding: Ensure the cable shield is connected according to recommended Bently Nevada wiring diagrams to prevent electrical noise or electromagnetic interference (EMI).
• Low Temperature Warning: Avoid continuous exposure to temperatures below -34 degC to protect the Viton pressure seal.

Compliance and Certifications

This general-purpose configuration (Option 00 for Agency Approvals) is compliant with standard industrial criteria:

• CE compliant (RFI/EMI immunity when installed with a 3300 XL NSv Proximitor Sensor)
• RoHS compliant