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

Overview

The 330909-00-25-10-02-00 is a high-performance, armored 3300 NSv Proximity Probe manufactured by Bently Nevada. Designed specifically for industrial process compressors, this transducer provides superior chemical resistance and enhanced side-view characteristics. It is fully interchangeable with legacy RAM systems, making it the preferred choice for reliable, non-contact vibration and axial position measurement.

Configuration Breakdown

• Base Model: 330909 — 3300 NSv Proximity Probe (3/8-24 UNF thread, Armored)
  • Unthreaded Length: -00 — 0.0 in
  • Overall Case Length: -25 — 2.5 in
  • Total Length: -10 — 1.0 meter
  • Connector: -02 — Miniature ClickLoc™ coaxial, standard cable
  • Approval: -00 — Not required

Engineering Specifications

• Linear Range: 1.5 mm (60 mils) — 0.25 mm to 1.75 mm gap.
• Scale Factor: 7.87 V/mm (200 mV/mil).
• Temp Range: -52°C to +177°C (-62°F to +351°F).
• Probe Material: AISI 304 Stainless Steel case with PPS tip.
• Pull Strength: 220 N (50 lb) via CableLoc™ design.
• Pressure Seal: Viton® O-ring (differential pressure rated).

Comparison & Selection Guide

Compare with: 330909-00-28-70-02-00

• Differences: The 330909-00-28-70-02-00 features a longer 2.8" case and a 7.0m total length, whereas the 330909-00-25-10-02-00 is a 2.5" case/1.0m unit.
• Selection Advice: Choose the 2.5" case for standard brackets. If your application requires greater transmission distance, ensure your cable/system length matches the target impedance to avoid rolloff.

Global PLC Spare HUB's Insight

Our engineering team regards the 330909-00-25-10-02-00 as the benchmark for "side-view" performance. Unlike standard sensors, the NSv’s geometry minimizes errors when gapped at small distances from the shaft target. The inclusion of stainless steel armor is critical for high-vibration compressor skids, providing that extra layer of defense against mechanical impact that standard cables simply cannot offer.

Applications & Diagnostics

• Typical Equipment: Process gas compressors, reciprocating machinery, and centrifugal pumps.
• Diagnostics: Capable of detecting shaft radial vibration, axial thrust movement, and phase reference markers.
• Integrity: The ClickLoc™ connector system prevents accidental loosening due to thermal cycling or machine vibration, while the Viton® O-ring ensures the probe acts as an effective process pressure barrier.

Logistics & Quality Assurance

• Shipping: Secure global transit via FedEx, UPS, and DHL.
• Dispatch: Orders processed within 24-48 hours.
• Warranty: 12-month manufacturer performance warranty.

Technical FAQ

Q: Is the 330909 probe compatible with non-Bently Nevada Proximitor sensors?
A: We highly recommend using the 330909 probe only with calibrated Bently Nevada 3300 XL NSv Proximitor sensors to ensure signal accuracy and system-level compliance.

Q: Why is "finger tight" the recommended installation torque for the probe tip?
A: Probes are designed to be hand-tightened to prevent over-stressing the PPS tip material or damaging the O-ring seal. Use a wrench only on the case hex nuts, never the probe tip itself.

Q: How does the armor jacket affect the minimum bend radius of the cable?
A: Despite the added armor, the probe maintains a minimum bend radius of 25.4 mm (1.0 in). Do not exceed this limit to avoid internal conductor fatigue.

Q: How do I select between connector protectors and silicone tape?
A: Use connector protectors for most oil-exposed environments. Silicone tape is a viable backup but is specifically discouraged for connections directly exposed to high-temperature turbine oil.

Q: Selection Advice: When is the 3300 NSv preferable to the standard 3300 XL probe?
A: The NSv is specifically engineered for "side-view" sensitive applications—where the sensor may inadvertently pick up signal reflections from nearby machine features—providing a much cleaner, more accurate reading.

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