330103-00-03-05-02-00 Bently Nevada 3300 XL Probe Stock

Executive Summary

The 330103-00-03-05-02-00 is a high-precision metric eddy current displacement transducer manufactured for the Bently Nevada 3300 XL 8mm Series. Operating on dynamic electromagnetic field principles, this probe measures non-contact shaft displacement and dynamic vibration on critical rotating machinery.

Engineered with an M10 x 1 metric thread, Polyphenylene sulfide (PPS) tip, and 303/304 Stainless Steel body, the 330103 model offers chemical and thermal stability in demanding industrial environments without requiring heavy armor shielding.

Core Architecture & Operating Principles

The 3300 XL 8mm Probe generates a high-frequency radio frequency (RF) field at its PPS tip coil. When a conductive metallic target approaches, induced eddy currents alter the magnetic field density, shifting circuit impedance.

The system converts these field shifts into a linear DC voltage directly proportional to target distance. Featuring a 2.0 mm (80 mils) linear span between -1 Vdc and -17 Vdc, it delivers accurate tracking for predictive machinery diagnostics.

Technical Specifications

Configuration Breakdown & Options Tree

The code 330103-00-03-05-02-00 designates specific mechanical and electrical configurations:

• 330103 - M10 x 1 Threaded Metric 8mm Probe (Unarmored)
  • 00 [Unthreaded Length]: 0 mm (Fully threaded case)
  • 03 [Overall Case Length]: 30 mm (Metric housing length)
  • 05 [Total Cable Length]: 0.5 meter (1.6 feet) probe lead
  • 02 [Connector & Cable]: Miniature coaxial ClickLoc connector, standard unarmored cable
  • 00 [Agency Approval]: Standard non-certified / No specific approval required

Selection Comparison & Engineering Recommendations

When engineering metric sensor installations, choosing between cable lengths and armor options is critical for system reliability:

Engineering Advice: Select the 330103-00-03-05-02-00 when space inside the bearing housing is limited and an external extension cable connects to a local junction box. Conversely, specify the 330103-00-04-50-02-00 when routing a continuous 5.0-meter run directly to the Proximitor without intermediate extension cable connections.

Target Equipment, Applications & Diagnostic Capabilities

The 330103-00-03-05-02-00 is designed for metric machinery housings requiring precise shaft dynamic tracking.

Target Machinery & Application Scenarios:

• High-speed centrifugal gas compressors with metric M10 tap ports.
• Combined cycle steam turbine main bearing housings.
• Boiler feed pumps and high-pressure water injection machinery.
• Precision gearboxes requiring non-contact shaft orbit analysis.

Diagnostic Capabilities:

• Radial Shaft Vibration: Measures dynamic shaft orbit behavior to detect imbalance and oil whirl.
• Axial Position Monitoring: Tracks shaft thrust position to prevent rotor-to-stator contact.
• Keyphasor Speed Sensing: Detects shaft keyways to supply phase reference signals for vibration diagnostics.

Global PLC Spare HUB's Insight

Keep these practical engineering details in mind when deploying the 330103-00-03-05-02-00 in the field:

1. Maximum Thread Engagement Limits: The M10 x 1 metric thread case permits a maximum thread engagement length of 15 mm. Exceeding this depth during installation risks binding the stainless steel threads or damaging internal housing tapped holes.

2. Temperature Seals and Sub-Zero Failure: The integrated Viton O-ring provides pressure sealing between the probe tip and casing. However, operating temperatures below -34 °C (-30 °F) harden the Viton material, which can result in premature seal failure under fluid pressure. For sub-zero liquid exposure, verify thermal limits before pressurization.

Logistics, Packaging & Warranty Terms

• Quality Protection: Supplied with standard 12 Months Warranty coverage.
• Fast Order Fulfillment: Warehouse stock dispatches within 24 to 48 hours.
• Global Express Courier Delivery: Worldwide air shipping via FedEx, UPS, or DHL.
• Safe Packaging: Packed in anti-static materials with protective caps over the M10 threads and ClickLoc connector.

Selection Guide & Technical FAQ

Selection Guide: How do I select field cable wiring for long distances between the Proximitor and monitor?

Use 3-conductor shielded triad cable (0.2 to 1.5 mm² / 16 to 24 AWG) with tinned conductors. Field wiring can extend up to 305 meters (1,000 feet) to connect the 3300 XL Proximitor to your rack monitor.

What physical gap setting corresponds to the recommended -9 Vdc gap voltage?

A output reading of -9 Vdc corresponds to a physical mechanical gap of approximately 1.27 mm (50 mils) between the probe tip and the steel target surface.

Can the standard unarmored coaxial lead be installed in oil-filled bearing cavities?

Yes, the standard coaxial cable sheath is oil-resistant. However, secure the cable using internal ties so that oil turbulence does not push it into moving machine parts.

What is the maximum torque specification for the M10 x 1 mounting thread?

Hand-tighten the probe to establish baseline target gap voltage, then lock the hex nut securely. Do not exceed 7.3 N·m (65 in-lb) of torque on M10 stainless steel threads to prevent binding.

How do I verify the ClickLoc connector is properly seated during installation?

Push the miniature coaxial connectors together firmly until you hear and feel the tactile click of the ClickLoc lock mechanism. Slip the molded connector protector over the connection to guard against grounding and contamination.

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