Bently Nevada 330704 3300 XL 11mm Probe 330704-000-050-90-02-05 New

Product Introduction

The Bently Nevada 330704-000-050-90-02-05 is a high-precision 3300 XL 11mm proximity probe engineered for critical industrial machinery. This metric sensor provides non-contacting displacement measurements, capturing essential shaft vibration and position data. We strongly advise engineers to download the official Bently Nevada 330704 technical manual and datasheet for precise gapping instructions and system calibration.

Technical Specifications

• Brand: Bently Nevada
• Model: 330704-000-050-90-02-05
• Series: 3300 XL 11mm
• Measurement Range: Extended 4.0 mm (160 mils) linear range for large shaft motion.
• Frequency Response: 0 Hz to 10 kHz for static and dynamic analysis.
• Sensitivity: 3.94 V/mm (100 mV/mil) when paired with 3300 XL Proximitor.
• Linearity: High-fidelity output across the full displacement spectrum.
• Resolution: Sub-micron precision for early fault detection.
• Temperature Range: -52°C to +177°C operational capability.
• Environmental Tolerance: PPS tip and 304 SST case resist corrosive industrial fluids.
• Interference Rejection: Advanced shielding against 60 Hz magnetic fields.

Configuration Breakdown

• 330704 — 3300 XL 11mm Probe (M14 x 1.5 Metric Thread)
  • └── 000 (Unthreaded Length)
    • └── 0.0 mm unthreaded portion of the case
  • └── 050 (Overall Case Length)
    • └── 50.0 mm total case length
  • └── 90 (Total Length)
    • └── 9.0 meters (29.5 feet) integrated system length
  • └── 02 (Connector and Cable)
    • └── ClickLoc miniature coaxial connector with Armored Cable
  • └── 05 (Agency Approval)
    • └── Multiple Approvals for hazardous area environments

Oiltech Controls Limited’s Insight

The 330704-000-050-90-02-05 stands as the robust alternative when standard 8mm probes fall short during high thermal expansion events. Our technical review confirms that the 330704 with the 9.0-meter cable configuration is ideal for massive turbomachinery where the Proximitor is housed in remote junction boxes. The addition of stainless steel armor (Option 02) ensures the triaxial cable survives the harsh physical stresses typical of power plants and refineries.

Diagnostic Capabilities & Applications

• Thrust Position: Reliable monitoring of axial rotor shift in steam turbines.
• Radial Vibration: Capturing high-speed shaft orbits for centrifugal compressors.
• Eccentricity: Monitoring shaft bow during critical slow-roll startup phases.
• Keyphasor Capability: Providing precise timing signals for phase and speed analysis.
• Compatible Equipment: Large hydro-generators, gas turbines, and industrial gearboxes.

Installation & Maintenance Guide

• Mounting Torque: Apply 21.1 N·m (187 in·lb); do not exceed 63.3 N·m.
• Thread Engagement: Ensure the probe is engaged within the bracket by 21 mm maximum.
• Resistance Check: Confirm the 9m probe resistance is within 8.5 ± 1.1 ohms.
• Seal Protection: Avoid operation below -34°C to maintain the pressure seal integrity.

Logistics & Warranty Terms

• Condition: New & Original in factory-sealed packing.
• Warranty: Includes a 12-Month factory-backed warranty.
• Shipping Partners: Priority dispatch via FedEx, UPS, or DHL.
• Dispatch Window: Guaranteed shipping within 24-48 hours.

Professional FAQ & Purchasing Guide

Question: How do I verify if the 330704-000-050-90-02-05 cable is damaged before power-up?

Answer: Measure the DC resistance between the center and outer conductor. For this 9-meter model, it must read 8.5 ± 1.1 ohms. Any deviation indicates a fault in the triaxial cable or connector.

Question: Can I use the 330704 11mm probe with a standard 8mm 3300 XL Proximitor?

Answer: No. The 11mm probe requires a specific 11mm Proximitor. Using an 8mm Proximitor will result in incorrect scale factors and linearized range errors.

Question: Why should I select the 02 Armored Cable option for my facility?

Answer: In industrial environments where cables are exposed to foot traffic, hot pipes, or oil spray, the armor provides critical mechanical protection that prevents signal loss and expensive downtime.

Question: What is the primary benefit of the M14 x 1.5 metric thread on the 330704?

Answer: This thread standard ensures direct compatibility with European and international machinery housings without the need for cumbersome thread adapters.

Question: Buying Guide: How do I choose the correct case length for a replacement?

Answer: Measure the insertion depth of your existing probe from the tip to the hex nut. Selecting the 050 (50.0mm) case ensures a compact fit for recessed mounting brackets.

Contact Information Inquiries: info@oiltechcontrols.com , +86 158 8020 0923

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