330702-00-26-50-01-05 Bently Nevada 3300 XL 11mm Probe

Precision Sensing: 330702-00-26-50-01-05 11mm Proximity Probe

The 330702-00-26-50-01-05 is a robust 11 mm proximity probe assembly by Bently Nevada, designed for high-accuracy shaft displacement monitoring. Featuring the patented TipLoc and CableLoc technologies, this 3300 XL series probe provides a stable, shock-resistant solution for critical rotating machinery in hazardous environments.

Configuration Breakdown

• Model: 330702 — 3300 XL 11 mm Probe, 1/2-20 UNF Thread, Armored
• Suffix Selection:
  • 00: 0.0 in Unthreaded Length
  • 26: 2.6 in Overall Case Length
  • 50: 5.0 meters (16.4 feet) Total Length
  • 01: ClickLoc connector with protector, standard cable
  • 05: Multiple Agency Approvals (CSA, ATEX, etc.)

Technical Specifications

• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case: AISI 304 Stainless Steel
• Resistance (RPROBE): 7.2 ± 0.8 Ω
• Torque Limits: 45.2 N•m (Max) / 15.2 N•m (Recommended)
• Operating Temp: -51°C to +177°C
• Connector: Gold-plated brass ClickLoc

Selection Comparison & Technical Advice

Verify your machine's thread and penetration requirements. Compare your application with this similar unit: 330702-00-26-50-02-00.

Technical Suggestion: The -01 connector protector is vital for the -05 approval class in humid environments. Avoid using silicone tape if the connection is subject to turbine oil, as it may degrade the long-term seal integrity.

Global PLC Spare HUB's Insight

The 330702 series excels in high-vibration applications. Our engineering team recommends careful torque application—exceeding the recommended 15.2 N•m can induce stress on the probe internal coils, leading to premature drift. Always ensure the locknut is secured using the pre-drilled safety wire holes to prevent backing off during machinery cycles.

Logistics & Quality Commitment

• Dispatch: Orders processed and shipped within 24-48 hours.
• Logistics: Secure global shipping via FedEx, UPS, or DHL.
• Warranty: This 330702-00-26-50-01-05 unit includes a 12-month factory quality warranty.

Professional Frequently Asked Questions

Q: Why does the 5-meter probe require a 5-meter Proximitor?
A: The transducer system is calibrated as a chain; the resistance and capacitance of the 5-meter cable are factored into the Proximitor's signal conditioning. Using an unmatched sensor will cause significant linearity errors.

Q: What is the specific role of the ClickLoc connector design?
A: ClickLoc connectors provide a positive-locking mechanism that prevents vibration-induced loosening, a common failure mode in traditional threaded connector designs found in older series.

Q: Can I replace a 3300 XL 8mm probe with this 11mm unit?
A: No. The sensing tip diameter dictates the required mounting hole and proximity field characteristics; they are not physically or electrically interchangeable.

Q: How do I identify if the internal pressure seal is compromised?
A: If oil appears at the connector end, the TipLoc or CableLoc bond has failed. Probes that have been exposed to temperatures below -34°C may also show compromised seal performance.

Q: Is there a specific mounting orientation for the reverse-mount version?
A: The standard 330702 is not a reverse-mount probe. For reverse-mount applications, ensure you are utilizing units specifically designed with 3/8-24 or M10x1 threads.

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