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Bently Nevada 330930-060-01-CN 3300 XL Standard Extension Cable

The Bently Nevada 330930-060-01-CN, also cataloged as the 330930 3300 XL Standard Extension Cable, provides electrical signal extension between proximity probes and monitoring modules within 3300 XL and 3300 NSv Proximity Transducer Systems.

Hardware Specifications

Parameter	Specification
Model	330930-060-01-CN
Brand	Bently Nevada
Product Type	3300 XL Standard Extension Cable
Origin	USA
Weight	Approx. 0.55 kg
Dimensions	Approx. 20.5 x 22.5 x 3.5 cm
Operating Temp	-51 deg C to +177 deg C
Power Consumption	Passive cable assembly, no external power required
System Compatibility	3300 XL and 3300 NSv Proximity Transducer Systems
Cable Length	6.0 m (19.7 ft)
Cable Construction	FEP insulated coaxial cable with stainless steel flexible armor
Connector Type	Miniature coaxial ClickLoc connector with connector protector
Impedance	75 ohm
Capacitance	Approx. 69.9 pF/m
Center Conductor Resistance	Approx. 0.220 ohm/m
Tensile Strength	Minimum 220 N cable-to-connector pull strength
Hazardous Area Approval	ATEX, IECEx, and Chinese NEPSI certification option

Eddy-Current Signal Transmission and Rotor Dynamics Interface

The 330930-060-01-CN extension cable maintains the electrical characteristics required for Bently Nevada eddy-current probe systems. Therefore, it preserves probe scaling accuracy, gap voltage measurement stability, and vibration signal transmission between the proximity probe and monitoring hardware.

The cable assembly supports rotor dynamics monitoring by transferring dynamic shaft displacement signals and static position measurements without adding active electronic processing. Additionally, the controlled impedance and capacitance values maintain compatibility with 3300 XL signal conditioning circuits.

The system validates probe operating conditions through gap voltage measurement, where typical eddy-current probe systems use negative DC bias signals such as -10 VDC targets to confirm correct probe positioning and measurement range.

Frequently Asked Questions

Q: Can the 330930-060-01-CN extension cable operate without external power?

A: Yes. The cable is a passive coaxial extension component and does not require an independent power supply. The connected proximity transducer system provides the excitation and signal processing functions.

Q: Does the cable support hazardous area installation?

A: Yes. The -CN option provides hazardous area approvals including ATEX, IECEx, and Chinese NEPSI certifications when installed according to the applicable system requirements.

Q: What installation factors affect eddy-current measurement performance?

A: Cable routing, connector condition, shielding integrity, and proper separation from high-current conductors affect signal quality. Installers should avoid mechanical stress and electromagnetic interference sources.

Field Installation Guidelines

• Install the extension cable between the compatible Bently Nevada proximity probe and monitoring interface according to the approved system wiring configuration.
• Maintain the stainless steel armored section protection during routing to prevent mechanical damage.
• Avoid sharp bends, excessive pulling force, and continuous vibration points that may stress the connector assembly.
• Keep the coaxial cable separated from high-voltage power cables and high-frequency switching sources.
• Verify ClickLoc connector engagement and inspect the connector protector before commissioning.
• Confirm probe gap voltage and signal response after installation using the connected monitoring system.

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