The Bently Nevada 330130-040-11-05, also cataloged as the 330130 3300 XL Extension Cable, operates as a dedicated hardware component for connecting 3300 XL probes to Proximitor sensors within vibration monitoring systems.

Configuration Breakdown

The 330130-040-11-05 is a specialized cable assembly designed to maintain the required system impedance of 3300 XL transducer systems. The configuration codes specify a 4.0 meter length, a standard cable without protective armor, and specific connector requirements for standard industrial installation environments. The total system length (Probe + Extension Cable) must be exactly matched to the Proximitor sensor calibration (usually 5 m or 9 m systems) to ensure accuracy.

Hardware Specifications

Impedance and Signal Integrity

The 3300 XL extension cable is engineered with specific coaxial geometry to maintain constant characteristic impedance. Signal degradation occurs if the cable is improperly handled or if the total system length deviates from the calibrated 5 m or 9 m total length. Proper connection requires the use of connector protectors to prevent the ingress of contaminants into the coupling, which can otherwise induce noise or voltage offsets. The cable must not be subjected to bend radii tighter than 25 mm to prevent center conductor damage or dielectric deformation.

Shipment Contents

• 1x 330130-040-11-05 Extension Cable

• 1x Connector protector set (installed)

• 1x Installation manual excerpt

Field Wiring Guidelines

• Cable Routing: Keep cables away from high-voltage lines and AC power leads to minimize inductive crosstalk.

• Connector Tightening: Use finger-tight force plus one-eighth turn with pliers to secure ClickLoc connectors. Do not overtighten.

• Protection: Always install connector protectors before pulling cables through conduits to prevent mechanical stress on the coaxial pin.

• Grounding: The cable is designed to maintain shield continuity. Ensure the shield is not grounded at any point between the probe and the Proximitor.

Frequently Asked Questions

• Can I use this cable with non-XL probes? No, 3300 XL cables are designed for the specific impedance of the 3300 XL series and are not compatible with older 3300-series probes.

• Does this cable affect the output signal? Yes, it is a calibrated component. The total system length (probe + cable) must match the Proximitor calibration to maintain the specified scale factor.

• What is the minimum bend radius? The cable should not be bent sharper than a 25 mm radius to maintain the integrity of the coaxial shield and dielectric.

• Is the cable armor required? This model (-11) is non-armored. Use armored versions if the cable is exposed to physical abrasion or chemical attack.

• How do I connect the cable to the Proximitor? Use the integrated ClickLoc connectors; ensure they are fully seated and free of moisture or debris.

• Can I join two cables together? No, connecting multiple extension cables introduces impedance discontinuities and invalidates system accuracy.

• What do I do if a connector is damaged? The cable assembly is a sealed, factory-calibrated unit; damaged connectors cannot be repaired and require unit replacement.

• Can this be used in explosive atmospheres? Yes, when installed as part of an intrinsically safe system (e.g., connected to an approved safety barrier).