330710-000-050-50-02-00 Bently Nevada 3300 XL 11mm Proximity Probe

Product Overview & Configuration Breakdown

Manufacturer: Bently Nevada

Model: 330710-000-050-50-02-00

Series: 3300 XL 11 mm Proximity Probes

Condition: Factory New & Original Factory Packing

Fulfillment: 24-48 Hour Express Global Shipping via FedEx, UPS, and DHL

Warranty: 12-Month Comprehensive Factory Warranty

Configuration Breakdown Tree:

• Model Family: 330710 - 3300 XL 11 mm Probe with M16x1.5 thread and SST armor
  • Unthreaded Length Option: 000 - 0 mm unthreaded portion
  • Overall Case Length Option: 050 - 50 mm total case length
  • Total System Length Option: 50 - 5.0 meters total matched length (requires 5m Proximitor)
  • Connector & Cable Option: 02 - Miniature coaxial ClickLoc connector with standard cable
  • Agency Approval Option: 00 - Not required / standard commercial grade

Global PLC Spare HUB's Insight: Larger probe tips such as the 11 mm configuration provide an extended linear range required for machinery with higher shaft radial motion. The 330710-000-050-50-02-00 utilizes robust triaxial cabling and stainless steel armor to protect against harsh mechanical environments, ensuring long-term signal fidelity in heavy industrial turbomachinery.

Advanced Technical Specifications Table

• Tip Construction: Polyphenylene sulfide (PPS) 11 mm profile with M16x1.5 thread and armor
• Probe dc Resistance: 7.2 ± 0.8 ohms from center conductor to outer conductor for 5.0m length
• Target Size Limitations: Minimum flat surface diameter of 30.5 mm (1.2 in); recommended shaft diameter of 152 mm (6.0 in)
• Cable Specifications: 75 Ohm triaxial FEP insulated probe cable designed exclusively for 5-meter matched systems
• Mechanical Torque Ratings: M16x1.5 case max torque of 63.3 N*m (recommended 21.1 N*m); connector finger tight with max 0.565 N*m
• Minimum Bend Radius: 25.4 mm (1.0 in) with or without stainless steel armor protection
• Thread Engagement Limit: Maximum length of thread engagement capped at 24 mm
• Operating & Storage Temperature: -52°C to +177°C (-62°F to +351°F); caution below -34°C for pressure seals

Engineering Selection and Comparative Analysis

When selecting 11 mm proximity systems for high-vibration large-frame machinery, matching the agency approval suffix code to your hazardous area classification is vital. For alternative installation requirements needing European hazardous approvals, review the 330710-000-050-50-02-05 model variant, which includes option 05 agency certifications instead of the unrated option 00 configuration found on the 330710-000-050-50-02-00. Always verify that your matching Proximitor sensor is calibrated explicitly for a 5.0-meter system length.

Industrial Application Scenarios & Diagnostic Capabilities

• Target Machinery: Large hydroelectric generators, high-capacity industrial gas turbines, boiler feed pumps, and heavy centrifugal compressors.
• Diagnostic Function: Measures radial vibration and average shaft position relative to sleeve and journal bearings.
• Failure Detection: Identifies broad-band vibration anomalies, shaft bow, severe rotor imbalance, and fluid-induced instabilities before structural damage occurs.

Frequently Asked Questions

Q: Why does the 330710-000-050-50-02-00 probe require a 5-meter specific Proximitor sensor?

A: The electrical capacitance and triaxial resistance of a 5-meter system cable are factory-tuned into the demodulator circuit; mixing mismatched cable lengths causes severe scale factor errors.

Q: What precautions should be taken when tightening the M16x1.5 probe case threads?

A: Apply the recommended installation torque of 21.1 N*m (187 in*lb) and do not exceed the 63.3 N*m maximum limit to prevent stripping mounting threads or distorting the probe tip.

Q: Can exposing this probe to sub-zero ambient temperatures damage internal components?

A: Temperatures dropping below -34°C (-30°F) can harden the internal Viton O-ring pressure seal, risking premature leakage if subjected to differential pressure.

Q: How does the 11 mm probe differ from standard 8 mm probes during gapping?

A: The larger 11 mm tip diameter requires a significantly larger minimum shaft target diameter (152 mm recommended) to prevent edge-effect distortion of the linear voltage output.

Q: What is the primary benefit of selecting the armored version for field routing?

A: The integrated stainless steel (SST) armor safeguards the FEP-insulated triaxial cable against physical abrasion, metal chips, and crushing hazards inside congested terminal boxes.

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