Bently Nevada 3300 XL 8mm Proximity Probe Part Number: 330103-00-10-10-11-05

Description

Bently Nevada 3300 XL 8mm Proximity Probe

Part Number: 330103-00-10-10-11-05

1. Product Introduction

The 330103-00-10-10-11-05 is a premium 8mm proximity probe from the industry-leading Bently Nevada 3300 XL series. It incorporates proprietary TipLoc™ molding technology, which provides an optimized electromagnetic field and precise coil positioning for superior measurement stability. The CableLoc™ design offers a secure mechanical connection between the probe tip and cable with a pull-strength far exceeding industry standards. This specific configuration includes an integral cable with a miniature coaxial connector, and carries hazardous area approvals for use in explosive atmospheres.

330103-00-10-10-11-05

2. Main Technical Specifications

• Part Number Breakdown (Bently Nevada Nomenclature):
  • 330103: 3300 XL 8mm Proximity Probe (with integral cable and miniature coaxial connector).
  • 00: Unthreaded length option (Standard blank/0.5m class probe body configuration).
  • 10: Integral cable/overall length of 1.0 meter.
  • 10: Option code (Miniature coaxial connector with protective armor option).
  • 11: Connector/seal arrangement variant.
  • 05: Approval code (Indicates ATEX/CENELEC/CSA hazardous area certifications).
• Physical Specifications:
  • Probe Tip Diameter: 8 mm (0.315 inches).
  • Tip Material: PPS (Polyphenylene Sulfide) – high temperature and chemical resistant.
  • Case Material: AISI 303/304 Stainless Steel.
  • Thread: Typically 3/8″-24 UNF or M8x1 (verify against your machine housing tap).
• Electrical Specifications (when paired with matched 8mm Proximitor):
  • Linear Range: 80 mils (2.0 mm).
  • Sensitivity: 7.87 V/mm (200 mV/mil).
  • Calibrated Target: AISI 4140 steel (or equivalent).
• Environmental Ratings:
  • Probe Tip Operating Temperature: -34°C to +177°C (-30°F to +350°F) standard.
  • Cable Temperature: -51°C to +177°C (-60°F to +350°F) for the armored variant.

3. Typical Applications

This probe is the workhorse of machinery protection in virtually every heavy industry:

• Radial Shaft Vibration: Monitoring relative vibration at fluid-film journal bearings on turbines, compressors, and pumps.
• Axial (Thrust) Position: Critical measurement to prevent thrust bearing failures on compressors and turbines.
• Keyphasor®/Speed Reference: Once-per-revolution phase reference for vibration diagnostics.
• Rotary & Valve Position: Measurement of differential expansion, eccentricity, and valve position.
• Hazardous Area Installations: The “-05” approval suffix certifies the system for Zone 1/2 (ATEX) or Class I Division 1/2 environments typical of refineries and offshore platforms.

4. Avoid Technical Pitfalls (Best Practices & Warnings)

• Total Electrical Length (TEL) Matching (Most Critical): The system length = Probe integral cable length (1.0m) + Extension cable length. This sum must exactly match the system length marked on your Proximitor (e.g., 330780-50 = 5.0m system). A mismatch produces incorrect gap voltage scaling and false vibration readings.
• Series Compatibility: Use only with 3300 XL Proximitors (330180 or 330780 series). Do not mix with legacy 7200 or standard 3300 (non-XL) components—the linearization curves and connector locking mechanisms are different.
• Thread Verification: Confirm the mounting thread (3/8″-24 UNF vs. M8x1) against the machine housing before installation. Forcing the wrong thread will destroy both the probe and the tapped hole.
• Target Material: The 200 mV/mil sensitivity is calibrated for AISI 4140 steel. Shafts of Inconel, 17-4 stainless, or chrome-plated surfaces exhibit different scale factors and require re-calibration or software re-scaling.
• Minimum Bend Radius: Maintain a bend radius of at least 25 mm (1 inch) at the probe connector. Sharp bends fracture the coaxial center conductor, causing intermittent “dropouts” that mimic real vibration events.
• Galvanic Isolation: Use the provided connector insulating washers if isolation from the machine case is required to prevent ground loops.

5. Related Product Recommendations

• Matching Extension Cable: 330730 series (e.g., 330730-040-00 or 330709 series) — length must complete the required TEL.
• Matching Proximitor: 330180-XX-XX or 330780-XX-00 (8mm, calibrated to your total system length).
• Monitoring Hardware: 3500/40M, 3500/42M, or 3500/45 monitor modules in a 3500/05 rack.
• Mounting Hardware: 125680-01 hex nut and 125700-01 lock washer (for 3/8″-24 UNF).
• Calibration Test Set: TK3-2E calibrator for field loop verification.