وصف

Bently Nevada 330930-045-03-CN 3300 NSv Extension Cable

Configured for proximity signal transmission in the Bently Nevada 3300 NSv Proximity Transducer System, the Bently Nevada 330930-045-03-CN (330930 Extension Cable) provides direct electrical connection between the NSv proximity probe and Proximitor Sensor assemblies. The cable transfers eddy-current measurement signals for vibration and shaft position monitoring.

Hardware Specifications

Parameter	Specification
Model	Bently Nevada 330930-045-03-CN
Brand	Bently Nevada
Product Type	3300 NSv Extension Cable
Origin	USA
Operating Temp	-51 deg C to +177 deg C
Power Consumption	Passive cable component; no external power consumption
System Compatibility	3300 NSv Proximity Probes and Proximitor Sensors / 990 / 991 Transmitters
Cable Length	4.5 m (14.8 ft)
Cable Construction	FEP insulated coaxial cable with stainless steel armor
Armor Material	Flexible AISI 302 / 304 stainless steel armor
Connector Type	Miniature coaxial ClickLoc connectors with gold-plated brass contacts
Characteristic Impedance	75 Ohm coaxial cable
System Scale Factor	7.87 V/mm (200 mV/mil) with complete NSv system
Capacitance	69.9 pF/m (21.3 pF/ft) typical
Center Conductor Resistance	0.220 Ohm/m (0.067 Ohm/ft)
Shield Resistance	0.066 Ohm/m (0.020 Ohm/ft)
Minimum Bend Radius	25.4 mm (1.0 in)
Humidity Limit	100% condensing, non-submerged with protected connectors
Hazardous Area Approval	NEPSI / CCC / ATEX / IECEx / CSA depending on regional certification

Eddy-Current Signal Scaling and Rotor Dynamics Interface

The 330930-045-03-CN extension cable maintains the electrical characteristics required for Bently Nevada eddy-current measurement systems. It preserves probe signal scaling between the proximity probe and Proximitor Sensor, allowing the system to convert shaft displacement into proportional voltage output.

In addition, the cable supports rotor dynamics monitoring by maintaining stable impedance, shielding performance, and signal transmission quality. Therefore, the cable configuration helps reduce measurement errors caused by cable electrical variation during vibration and axial position monitoring.

Frequently Asked Questions

Q: What equipment connects with the Bently Nevada 330930-045-03-CN cable?
A: The cable connects 3300 NSv proximity probes with compatible Proximitor Sensors or 990 / 991 transmitters within the proximity transducer system.

Q: Does the extension cable require an external power supply?
A: No. The extension cable is a passive signal transmission component and receives operating power through the connected Proximitor Sensor circuit.

Q: How should the cable shielding be installed in the field?
A: Install the cable according to Bently Nevada system wiring practices. Maintain shield continuity, avoid unnecessary cable routing near high-noise power conductors, and protect connector interfaces from contamination.

Field Installation Guidelines

• Install the extension cable with the specified minimum bend radius to prevent mechanical stress on the coaxial structure.
• Connect ClickLoc connectors firmly to maintain electrical contact integrity and signal stability.
• Keep the cable routing separated from high-current switching cables to reduce electromagnetic interference.
• Maintain proper armor grounding practices according to site electrical standards.
• Verify probe, extension cable, and Proximitor Sensor compatibility before system commissioning.
• Inspect connector protectors during installation to prevent moisture and contamination ingress.

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