Bently Nevada 330709-00-050-10-02-00 3300 XL 8mm Proximity Probe Extension Cable

Description

Bently Nevada 3300 XL 8mm Proximity Probe Extension Cable

Part Number: 330709-00-050-10-02-00

1. Product Introduction

The 330709-00-050-10-02-00 is a premium, armored extension cable designed for the Bently Nevada 3300 XL 8mm Proximity Transducer system. It serves as the critical electrical link between the proximity probe (sensor) and the Proximitor Sensor (oscillator/demodulator). Constructed with a stainless steel armor and a special hermetically sealed seal, this cable ensures environmental integrity in harsh industrial conditions. The 3300 XL series features a “Click-Lock” technology which provides a secure, twist-to-lock connection, ensuring high vibration immunity and preventing accidental disconnection.

330709-00-050-10-02-00

2. Main Technical Specifications

• System Compatibility: 3300 XL 8mm Proximity Transducer System.
• Total Length: The last 4 digits (50-10) typically denote a length logic.
  • *Note on Part Breakdown:*
    • 00: Standard Probe length specification (Prefix).
    • 050: Probe length code usually corresponds to 5.0 meters. *Note: Verify if this refers to the cable length or the probe length logic it is paired with. If this is an extension cable, the length is usually 5.0 meters.*
    • 10: Option code often indicates specific approvals or connector variants (e.g., CSA/UL).
• Conductor Configuration: Coaxial construction (Center conductor + shield).
• Connector Type:
  • Probe End: Miniature coaxial connector (Click-Lok).
  • Proximitor End: MS (Military Standard) or similar coaxial connector.
• Armoring Material: Stainless steel flexible conduit (provides mechanical protection and EMI shielding).
• Temperature Rating:
  • Operating: -51°C to +177°C (-60°F to +350°F) for the probe end.
  • Cable Ambient: Typically up to +105°C (221°F) depending on environment.
• Approvals: The “10” suffix usually indicates availability of CSA and CENELEC/ATEX approvals for hazardous areas.

3. Typical Applications

This extension cable is utilized in virtually all industries where continuous vibration and position monitoring of rotating machinery is required:

• Radial Vibration Monitoring: Monitoring shaft vibration on steam turbines, gas turbines, and compressors.
• Axial Position (Thrust) Monitoring: Measuring the axial position of a rotor to prevent thrust bearing failure.
• Eccentricity/Position Monitoring: Detecting shaft average position or bow.
• High-Temperature Environments: Suitable for turbine exhaust areas where heat resistance is mandatory.

4. Avoid Technical Pitfalls (Best Practices & Warnings)

• Total Electrical Length (TL) Mismatch: The most common failure point is ignoring the Total Electrical Length. The system length is the sum of the Probe Length + Extension Cable Length. This must match the Proximitor setting (e.g., 5.0m system). If you mix a 5m cable with an 8m probe, the linearization curve will be incorrect, leading to false vibration readings.
• Wrong Proximitor Matching: Do not use this 3300 XL cable with older 7200 or 3300 series Proximitors that utilize standard (non-XL) connectors. The physical fit might be similar, but the electrical tolerances and locking mechanisms differ.
• Tight Bend Radius: Do not bend the cable sharply near the probe or connector. A bend radius smaller than 1-2 inches can break the internal coaxial shield or the center conductor, causing intermittent signal noise.
• Grounding Loops: Ensure the armor is grounded correctly according to the schematic (usually grounded at the Proximitor end). Grounding at both ends can cause ground loops, leading to 50Hz/60Hz noise in the signal.
• Seal Integrity: The “00-050” series includes a specific seal for the probe connection. Ensure this seal is tight; otherwise, oil ingress will destroy the coaxial connection.

5. Related Product Recommendations

• 3300 XL 8mm Proximity Probe: e.g., 330103-00-05-10-02-05 (Must match the system length logic).
• 3300 XL Proximitor: e.g., 330180-51-05 or 330850-50-00 (Must be calibrated to the correct system length).
• Bently Nevada 3500/42M or 3500/40M Monitor: The monitoring rack that receives the signal.
• junction Boxes: For routing and protecting the cable connections.
• TM012 (Test Meter): For diagnosing system output and calibration verification.