Configured for high-frequency signal transmission in 3300 XL monitoring systems, the Bently Nevada 330190-045-01-CN (330190-045-01-CN Extension Cable) provides direct physical electrical continuity between the proximity probe and the Proximitor sensor.

Model Suffix Decomposition

The 330190-045-01-CN part number reflects the following configuration standards:

• 330190: 3300 XL Extension Cable assembly.

• 045: 4.5 meters total system length.

• 01: Standard connector and cable configuration.

• CN: China-specific regulatory compliance and documentation standard.

Hardware Specifications

Eddy-Current Probe Scaling and Signal Integrity

The 3300 XL system relies on precise eddy-current probe scaling to ensure linear displacement measurement. The 330190-045-01-CN cable is manufactured to maintain a strict 75 Ohm characteristic impedance, which is required to prevent signal reflections that could corrupt rotor dynamics data. To ensure accurate gap voltage validation (-10 VDC targets), the cable length must match the system configuration verified during initial calibration. Effective cross-talk suppression is achieved by maintaining high shield integrity across the entire signal path, preventing electromagnetic interference from neighboring channels or external electrical noise sources in the machine environment.

Ordering info

• 1 x 330190-045-01-CN Extension Cable assembly

• 1 x ClickLoc connector kit

• 1 x Protective connector cap

• 1 x Installation manual

Field Installation Guidelines

• Handling: Do not exceed the minimum bend radius of 25 mm during installation to prevent deformation of the coaxial core.

• Connections: Ensure the ClickLoc connectors are fully engaged. Avoid mechanical force; the connectors should lock firmly by hand.

• Shielding: Terminate the cable shield at the designated monitor grounding point. Avoid grounding the shield at both the probe and the monitor to prevent ground loops.

• Protection: Utilize cable conduit in high-vibration areas to prevent mechanical wear and fatigue of the cable jacket.

Frequently Asked Questions

• Q: Can this cable be shortened to adjust for installation requirements?

  A: No. Altering the cable length changes the impedance and phase characteristics, which will invalidate the Proximitor calibration and lead to inaccurate vibration data.

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

  A: No. The 330190 series is designed specifically for 3300 XL system impedance profiles and cannot be intermixed with legacy 3300 components.

• Q: How does ambient temperature affect the cable?

  A: The cable is rated for -51 deg C to +177 deg C. It maintains stability across this range, but handling at the extreme low end should be minimized to avoid cracking the jacket.

• Q: Does the 'CN' suffix indicate different electrical performance?

  A: No. The 'CN' designation refers only to regional regulatory compliance; the electrical specifications remain identical to standard 330190 models.

• Q: What indicates a faulty connection?

  A: A faulty connection often manifests as a non-zero voltage offset or signal noise, detectable by monitoring the gap voltage at the Proximitor terminal.

• Q: Can this cable be used with armored probes?

  A: Yes. The extension cable is electrically compatible with both armored and non-armored 3300 XL proximity probes.

• Q: How is the connector protected from oil?

  A: The ClickLoc design provides a robust seal. Ensure the protective cap is installed if the connector is exposed to harsh lubricants or chemical fluids.

• Q: What is the primary cause of signal attenuation?

  A: Signal attenuation is typically caused by cable damage, moisture ingress at the connectors, or improper termination of the shield.