330707-00-20-90-11-05 Bently Nevada 3300 XL 11mm Proximity Probe Sensor

Product Introduction

• The 330707-00-20-90-11-05 is a high-precision Bently Nevada 3300 XL 11mm Proximity Probe.
• This 330707-00-20-90-11-05 sensor utilizes a 5/8-18 UNF thread for robust external mounting.
• It features the advanced FluidLoc cable to prevent moisture and oil migration through the lead.
• Engineered for large-scale rotating machinery, it provides reliable axial and radial measurements.
• The 9.0-meter total length eliminates the need for extension cables in many configurations.

Global PLC Spare HUB's Insight

• The 330707-00-20-90-11-05 is the primary choice for long-distance sensor-to-proximitor links.
• Our technical review confirms the ClickLoc connector protector significantly extends service life in humid zones.
• The 11mm tip diameter offers a wider linear range compared to standard 8mm probes.
• We recommend this 330707 model for high-pressure applications requiring a Viton O-ring seal.
• This probe is fully compatible with all Bently Nevada 3300 XL 11mm proximitor systems.

Configuration Breakdown

• Base Model: 330707 — 3300 XL 11 mm Probe (5/8-18 UNF)
• Unthreaded Length (-00): 0.0 inches
• Overall Case Length (-20): 2.0 inches
• Total Length (-90): 9.0 meters (29.5 feet)
• Connector/Cable Type (-11): ClickLoc + FluidLoc Cable
• Agency Approval (-05): Multiple Approvals (ATEX, IECEx, CSA)

Technical Specifications

• Brand: Bently Nevada
• Model: 330707-00-20-90-11-05
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Case Material: AISI 304 Stainless Steel (SST)
• DC Resistance: 8.5 ± 1.1 ohms (Center to Outer Conductor)
• Operating Temp: -51°C to +177°C (-60°F to +351°F)
• Cable Type: 75 Ω triaxial FEP insulated FluidLoc
• Thread Size: 5/8-18 UNF
• Maximum Torque: 45.2 N•m (400 in•lb)
• Bend Radius: 25.4 mm (1.0 in) minimum

Comparative Selection Guide

• 330707-00-20-90-11-05: 5/8-18 UNF, 9.0m Length, FluidLoc, No Armor (Current Choice)
• 330702-00-24-50-12-05: 3/8-24 UNF, 5.0m Length, FluidLoc, SST Armor
• 330703-000-050-10-01-00: M14x1.5, 1.0m Length, Standard Cable, No Armor

Technical Advice: For large steam turbines, the 9m 330707 is ideal to reach remote junction boxes. Use armored versions like the 330702 if the cable is exposed to debris or mechanical abrasion.

Diagnostic & Application Scenarios

• Radial Vibration: Monitoring shaft displacement in large centrifugal compressors.
• Axial Position: Tracking thrust bearing wear in high-speed turbines.
• Keyphasor: Providing phase reference for balancing and speed measurements.
• Fluid Environments: FluidLoc technology blocks oil/water ingress through the cable core.
• Diagnostic Reporting: Seamless interface with 3500/05 racks and Proximitor sensors.

Logistics and Warranty

• Warranty: 12-month comprehensive technical warranty.
• Global Shipping: Express service via FedEx, UPS, and DHL.
• Handling: Dispatched within 24 to 48 hours of order.
• Origin: Genuine hardware, Made in U.S.A.

Technical Buying Guide & FAQ

• What is the primary benefit of the FluidLoc cable option?
  It creates a physical barrier inside the cable to stop fluids from reaching the electronics, essential for oil-filled housings.
• Do I need an extension cable for the 330707-00-20-90-11-05?
  No, this is a 9.0m system; it connects directly to a 9.0m proximitor sensor without additional leads.
• How can I check the probe integrity during installation?
  Verify the 330707 resistance; it should read between 7.4 and 9.6 ohms for a 9m length.
• What happens if I exceed the 45.2 N•m torque limit?
  Overtightening may deform the stainless steel case or damage the internal PPS tip seal.
• Is the ClickLoc connector protector necessary?
  Yes, it ensures the connection remains "finger tight" and prevents moisture from entering the junction.

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