330909-05-25-10-02-00 Bently Nevada 3300 NSv Proximity Probe - In Stock

Product Introduction

The 330909-05-25-10-02-00 is a precision-engineered 3300 NSv Proximity Probe from Bently Nevada. Specifically designed for centrifugal air compressors and small pumps, this transducer provides high-resolution vibration and position data. The 330909 series utilizes a 3/8-24 UNF thread pattern and integrated armor for superior mechanical protection in industrial sumps. 

Technical Specifications

• Brand: Bently Nevada
• Model: 330909-05-25-10-02-00
• Series: 3300 NSv Proximity Transducer System
• Measurement Range: Optimized for restricted clearance areas (Narrow Side View)
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Center Resistance: 4.2 ± 0.5 ohms (Center to Outer Conductor)
• Cable Type: 75 Ω coaxial with Fluoroethylene Propylene (FEP) insulation
• Armor Construction: Integrated AISI 304 Stainless Steel (SST) protection
• Pressure Seal: Viton O-ring for differential pressure sealing
• Compliance: American-made quality engineering

Configuration Hierarchy

• 330909 ➔ 3300 NSv Probe (3/8-24 UNF Threaded with Armor)
  • 05 — Unthreaded Length: 0.5 inch
  • 25 — Overall Case Length: 2.5 inches
  • 10 — Total System Length: 1.0 meter (39 inches)
  • 02 — Connector Type: Miniature coaxial ClickLoc (Standard Cable)
  • 00 — Agency Approval: Standard/Not required

Global PLC Spare HUB's Insight

The 330909-05-25-10-02-00 is the "problem solver" for tight mechanical clearances. Unlike standard probes, the 3300 NSv (Narrow Side View) is optimized to minimize side-view interference from surrounding metal, making it essential for centrifugal compressors where space is at a premium. The armored cable on this 330909 unit is particularly useful in gearboxes where oil splash and mechanical abrasion are constant threats.

Typical Application & Equipment

• Centrifugal Air Compressors: Ideal for monitoring radial vibration in tight bearing housings.
• High-Speed Turbomachinery: Suitable for shafts with smaller diameters where standard probes over-average the signal.
• Small Industrial Pumps: Used for axial thrust position and shaft vibration monitoring.
• Refrigeration Units: Compatible with various refrigerants due to the Viton sealing and FEP cable.

Installation & Diagnostic Capabilities

• Torque Spec: Recommended mounting torque is 11.3 N·m (100 in·lb); do not exceed 33.9 N·m.
• Thread Engagement: Maximum thread depth is 0.563 inches to prevent case deformation.
• Signal Integrity: The ClickLoc connector provides a positive lock to prevent signal dropouts caused by high-frequency vibration.
• Pressure Management: Designed to seal differential pressure between the tip and case; avoid sub-zero storage to maintain seal elasticity.

Shipping & Warranty

• Processing Time: Dispatched within 24-48 hours.
• Courier Options: Global delivery via FedEx, UPS, or DHL.
• Quality Assurance: Protected by a 12-Month Warranty on all new units.
• Packaging: Securely packed to prevent cable kinking or connector damage.

Industrial Expert FAQ

What is the primary difference between the 3300 NSv and standard 3300 XL probes?
The NSv series is specifically tuned for a smaller "spot size" to measure vibration on small shaft diameters or in areas with restricted clearance without being affected by side-wall interference.

How do I verify the health of the 330909-05-25-10-02-00 using a multimeter?
Measure the resistance between the center conductor and the outer conductor of the ClickLoc connector; for a 1.0m probe, it should read approximately 4.2 ± 0.5 ohms.

Why is there a warning about temperatures below -34°C?
While the probe can operate at -52°C, sustained exposure to extreme cold makes the Viton O-ring brittle, which may lead to a loss of the pressure seal over time.

Can this armored probe be installed without a conduit?
Yes, the SST armor provides significant mechanical protection, but ensure the armor is properly grounded and the cable bend radius is respected to avoid internal coaxial damage.

Selection Guide: When should I choose the "Armor" option over standard cable?
Select the armored version if the cable will be exposed to high-velocity oil flow, moving parts, or if maintenance personnel are likely to step on or snag the cables during machine service.

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