Bently Nevada 330702 3300 XL 11mm Proximity Probe for Turbine Monitoring

Product Snapshot

• Bently Nevada 330702-00-26-50-02-05 proximity probe.
• Part of the trusted 3300 XL 11 mm series.
• Designed for vibration and shaft position monitoring.
• Manufactured in the United States.
• Built for continuous industrial operation.

What Makes This Probe Different

• Larger 11 mm sensing diameter improves signal strength.
• Armored cable protects against mechanical damage.
• PPS tip resists oil, heat, and chemicals.
• Stable output over long cable distances.
• Works in both safe and hazardous zones.

Model Code Breakdown

• 330702-00-26-50-02-05
  • 330702
    • 3300 XL series
    • 11 mm probe diameter
    • 1/2-20 UNF mounting thread
    • Armored probe construction
  • 00
    • Unthreaded length equals 0.0 inch
  • 26
    • Probe case length equals 2.6 inches
  • 50
    • Total probe length equals 5.0 meters
    • Matched only with 5 meter Proximitor sensor
  • 02
    • Miniature coaxial ClickLoc connector
    • Standard probe cable
  • 05
    • Multiple international approvals

Core Technical Data

• Probe DC resistance equals 7.2 ohms.
• Resistance tolerance equals plus or minus 0.8 ohms.
• Cable impedance equals 75 ohm triaxial.
• Cable insulation uses FEP material.
• Shipping weight equals 0.17 kg.

Mechanical and Installation Limits

• Mounting thread equals 1/2-20 UNF.
• Maximum thread engagement equals 0.750 inch.
• Recommended mounting torque equals 15.2 N·m.
• Maximum rated torque equals 45.2 N·m.
• Minimum cable bend radius equals 25.4 mm.

Environmental Performance

• Operating temperature range from -52°C to +177°C.
• PPS tip tolerates high thermal stress.
• Viton O-ring seals pressure differences.
• Stable performance in oily and humid areas.

Certifications and Safety

• Approved for EPL Ga and Gc installations.
• Suitable for Zone 0 and Zone 2 areas.
• Supports intrinsic safety systems.

Typical Use Cases

• Steam and gas turbines.
• Large compressors and pumps.
• Critical rotating shafts.
• Continuous vibration monitoring systems.

Warranty and Shipping

• Standard warranty equals 12 months.
• Ships via FedEx, UPS, or DHL.
• Export-safe industrial packaging.

Professional FAQ

• Can this probe replace an 8 mm probe
  • No. Clearance and target range differ.
• Why is the 5 meter length limited
  • Signal tuning matches only 5 meter sensors.
• Is this probe suitable for high vibration
  • Yes. Armor improves durability.
• What causes sealing failure
  • Very low temperatures below -34°C.
• How do I select the right probe size
  • Check shaft clearance and monitor type.

Related Products

• 3300 XL 8mm Proximity Probe

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