330105-02-12-10-02-00 Bently Nevada 3300 XL 8mm Reverse Mount Probe

Global PLC Spare HUB's Insight: Advanced Vibration Sensing

• The Bently Nevada 330105-02-12-10-02-00 is the industry standard for non-contacting vibration measurement.
• Engineers specify the Reverse Mount series when internal sensor access is restricted by machine geometry.
• Its ClickLoc coaxial connector eliminates signal "chatter" caused by heavy industrial vibrations.
• The probe's PPS (Polyphenylene sulfide) tip ensures maximum chemical resistance in oil-mist environments.
• Designed for the 3300 XL system, it provides a stable 3.94 V/mm (100 mV/mil) scale factor for radial and axial measurements.

Model Configuration Breakdown (Tree Structure)

• 330105 — Base Model: 3300 XL 8 mm Reverse Mount Probe
  • -02-12 — Thread Option: 3/8-24 UNF threads for precise mechanical gap adjustment.
  • -10 — Total Length: 1.0 Meter (3.3 Feet) cable length.
  • -02 — Connector: Miniature ClickLoc coaxial connector (Gold-plated).
  • -00 — Agency Approval: Standard Industrial (No hazardous area approvals).

Technical Engineering Specifications

• Probe Tip Material: High-performance Polyphenylene sulfide (PPS).
• Case Construction: AISI 303 or 304 Stainless Steel (SST).
• DC Resistance: Nominal 7.45 Ω ± 0.50 (Center to Outer Conductor).
• Torque Limits: 7.5 N•m (Recommended) / 22.6 N•m (Maximum Rated).
• Standard Temp Range: -52°C to +177°C (-62°F to +350°F).
• Pressure Seal: Rated for reliable containment of machine lubricants.
• Linear Range: 2.0 mm (80 mils) when paired with 3300 XL Proximitor.

Model Selection & Technical Comparison

Compare the 1.0m standard configuration with the 0.5m CN version to ensure system linearity:

Technical Advice: Do not mix probe lengths. A 1.0m probe must be used with a 1.0m calibrated system to prevent scaling errors that could trigger false machine trips.

Diagnostic Capabilities & Typical Applications

• Primary Use: Axial Thrust and Radial Vibration monitoring on Steam Turbines and Compressors.
• Signal Diagnosis: The DC resistance check (7.45 Ω) is the primary field test for verifying cable and tip health.
• Mounting Advantage: Reverse mount design allows for sensor replacement from outside the machine housing.
• Pressure Monitoring: The integral seal prevents process fluids or lubricants from leaking through the probe lead-out.

Logistics & Warranty Commitment

• Warranty: 12-month factory warranty on all New & Original Bently Nevada units.
• Condition: Guaranteed original factory packing with intact seals.
• Courier Services: Express dispatch via FedEx, UPS, and DHL.
• Lead Time: This 330105-02-12-10-02-00 ships within 24-48 hours.

Expert FAQ & Procurement Guide

• Why is the 7.5 N•m torque recommendation so critical?
• Excessive torque can deform the stainless steel case or crack the PPS tip, leading to immediate sensor failure or oil leakage.
• Can I use this 1.0m probe with a 5m extension cable?
• Yes, provided the Proximitor sensor is calibrated for a "Total System Length" of 5 meters (1m Probe + 4m Extension).
• What happens if the probe is exposed to temperatures below -34°C?
• While the electronics survive, the pressure seal may become brittle and fail, allowing oil to bypass the probe housing.
• Is the ClickLoc connector compatible with older 3300 probes?
• The ClickLoc is backward compatible with most standard miniature coaxial connectors but offers a more secure lock.
• How do I confirm this is an authentic Bently Nevada part?
• Check the resistance value against the factory spec and verify the unique serial number on the factory label.

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