Configured for signal transmission between 8mm proximity probes and Proximitor sensors in 3300 XL machinery protection systems, the Bently Nevada 330105-02-12-05-02-00 (330105 Extension Cable) provides direct physical electrical continuity for high-frequency carrier signals.

Model Suffix Breakdown

The 330105-02-12-05-02-00 is categorized by its specific physical attributes:

• 02: Cable length (4.0 meters).

• 12: Cable assembly type (Standard cable with connector protectors).

• 05: Agency approval option (Multiple approvals).

• 02: Total length (Includes extension and probe cable summation requirements).

• 00: No special options.

Technical Hardware Specifications

Cross-Talk Suppression and Signal Integrity

The 3300 XL system requires precise impedance matching to maintain accuracy in rotor dynamics monitoring. The 330105 cable assembly is constructed to ensure minimal signal attenuation over the specified length. Proper installation requires verification of the total system length (probe cable plus extension cable) to match the calibration requirements of the Proximitor sensor. In environments with high electromagnetic interference, the cable shield must be grounded at the monitor end to prevent noise injection and ensure effective cross-talk suppression between adjacent sensor channels.

Ordering Information

• 1 x 330105-02-12-05-02-00 Extension Cable assembly.

• 1 x Connector protector kit (pre-installed).

• 1 x Technical documentation package.

Cable Deployment Guidelines

• Connection Integrity: Ensure all ClickLoc connectors are fully seated and tightened by hand. Do not use pliers or wrenches, as over-tightening can damage the connector shell.

• Bend Radius: Maintain a minimum bend radius of 25 mm. Exceeding this limit will cause changes to cable impedance and degrade the measurement signal.

• Shielding: The cable shield must be continuous. Avoid clamping the cable in areas with high vibration that could induce fretting corrosion on the shield or center conductor.

• Separation: Route signal cables away from AC power lines and high-current motor leads to prevent induced noise on the vibration signal.

Frequently Asked Questions

• Q: Can this cable be trimmed to match a specific system length?

  A: No. Trimming or splicing 3300 XL extension cables alters the electrical impedance, which invalidates the system calibration and results in measurement errors.

• Q: Is this cable compatible with 3300 series probes?

  A: Compatibility is limited to 3300 XL components. Verify the connector type (ClickLoc) matches the existing probe and Proximitor sensor assemblies.

• Q: What is the maximum total system length allowed?

  A: The standard 3300 XL system is calibrated for a total length of 5 meters or 9 meters. Ensure the extension cable selection aligns with the Proximitor sensor's calibrated length.

• Q: Why is the connector protector important?

  A: It provides environmental sealing and prevents the ClickLoc connection from loosening due to machine vibration, ensuring a stable electrical path.

• Q: Does this cable carry a DC voltage?

  A: Yes, it transmits the DC bias voltage and the high-frequency AC carrier signal required for eddy-current proximity sensing.

• Q: How do I test the cable for continuity?

  A: Use a high-impedance ohmmeter to check the center conductor and the shield for continuity. Ensure there is no short-circuit between the center conductor and the shield.

• Q: Can I use this cable in sub-zero environments?

  A: Yes, the cable materials are rated for operation down to -51 deg C. Avoid manipulating the cable at these temperatures to prevent jacket cracking.

• Q: What does the '02' length code represent?

  A: In this configuration, the '02' designates a 4-meter extension cable intended to work with a 1-meter probe cable to achieve a 5-meter total system length.