330141-08-30-11-05 Bently Nevada 3300 XL 8 mm Probe

Problem: Harsh Machine Environments Degrade Probe Reliability

Industrial machinery exposes eddy current probes to oil, vibration, and physical abuse. The Bently Nevada 330141-08-30-11-05 addresses these failure modes with a rugged 8 mm probe design. This 3300 XL series probe features a thicker PPS plastic tip encapsulation and a stronger stainless steel case. Consequently, it resists mechanical damage better than smaller-diameter probes. The integrated armor further protects the probe body and cable in demanding installations.

Solution: Engineering-Grade Construction of the 330141-08-30-11-05

Bently Nevada engineered this probe for precise, repeatable displacement measurements. The patented TipLoc molding method creates a robust bond between tip and body. Meanwhile, the CableLoc design provides 330 N (75 lbf) pull strength. This prevents cable detachment during machine operation. For environments with oil leakage, the FluidLoc cable option seals the cable interior. As a result, liquids cannot escape through the cable. The 330141-08-30-11-05 delivers engineering-grade precision for critical turbomachinery monitoring.

Key Specifications

• Probe Type: 3300 XL 8 mm probe with armor
• Total Length: 3.0 meters
• Connector: Miniature coaxial ClickLoc with protector
• Cable Type: FluidLoc
• Agency Approvals: CSA, ATEX, IECEx
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Case Material: AISI 303 or 304 stainless steel
• Nominal DC Resistance: 8.17 ± 0.50 Ω at 3.0 m
• Incremental Scale Factor: 7.87 V/mm (200 mV/mil) ±5% for 5 or 1 m systems
• Operating Temperature: -52°C to +177°C standard probe

Installation and Integration of the 330141-08-30-11-05

Proper mounting ensures accurate vibration data. First, verify the probe gap voltage using a compatible 3300 XL proximitor. Second, secure the armor to prevent strain on the connector. The ClickLoc connector simplifies installation with a secure click. However, always follow the machine manufacturer's torque specifications. For integration with older 3300 series systems, the 3300 XL probe maintains backward compatibility. Yet, confirm the extension cable length matches the system requirements. The FluidLoc cable requires careful routing to avoid sharp bends.

Maintenance and Reliability

Routine inspection extends probe service life. Check the probe tip for wear or deposits every scheduled maintenance interval. Clean the tip only with approved solvents if contamination occurs. Verify cable integrity and connector tightness. Because the probe operates in extreme temperatures, monitor for signs of thermal stress. The stainless steel case resists corrosion, but inspect for mechanical damage. If the probe experiences temperatures below –34°C (-30°F), the pressure seal may fail prematurely. Therefore, avoid cold startup procedures that expose the probe to such conditions.