Description
Bently Nevada 330730-080-02-00
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330730-080-02-00 |
| Cable Length | 8.0 meters (26.2 feet) |
| Connector and Cable Type | Miniature coaxial ClickLoc connector, standard cable |
| Agency Approval | Not required |
| Cable Type | 75 Ω triaxial |
| Insulation Material | Fluoroethylene propylene (FEP) |
| Capacitance | 69.9 pF/m (21.3 pF/ft) typical |
| DC Resistance (Core-to-Core) | 2.0 ± 0.5 Ω |
| DC Resistance (Shield-to-Shield) | 0.6 ± 0.2 Ω |
| Temperature Range | -52°C to +177°C (-62°F to +350°F) |
| Weight | 0.28 kg (0.62 lbs) |
| Minimum Bend Radius | 25.4 mm (1.0 in) |
Functional Features The cable features gold-plated brass ClickLoc connectors at both ends for secure, vibration-resistant connections. The triaxial construction provides excellent EMI/RFI shielding with separate inner and outer shields. The standard FEP insulation offers high temperature capability and chemical resistance. The cable is designed for complete interchangeability within the 3300 XL 11 mm system without matching or calibration.
Application Scenarios Connecting 11 mm proximity probes to Proximitor Sensors in large steam turbine monitoring systems, extending probe reach in industrial compressor installations, routing signals around hot machine surfaces in power plants, connecting vibration probes in petrochemical processing equipment, axial position measurement systems in heavy machinery, differential expansion monitoring installations in large rotating equipment.
Performance Parameters The cable maintains a characteristic impedance of 75 Ω with capacitance of 69.9 pF/m. The DC resistance from center conductor to center conductor is 2.0 ± 0.5 Ω for the 8.0 meter length. The cable is electrically matched to 9.0 meter system length Proximitor Sensors when used with 1.0 meter probes. The signal attenuation is minimal across the 0 to 8 kHz frequency range.
Material Composition The cable conductors are copper with FEP insulation. The shielding is braided copper. The connector bodies are gold-plated brass. The outer jacket is FEP. The cable does not include armor in this configuration.
Structural Characteristics The cable has an 8.0 meter overall length with precise electrical length tolerances. Both ends feature miniature coaxial ClickLoc male connectors. The cable has a 3.7 mm maximum outside diameter. The construction is non-armored, providing flexibility for routing in confined spaces.
Working Principle The extension cable transmits the high-frequency RF signal from the Proximitor Sensor to the probe tip and returns the modified signal back to the Proximitor Sensor. The triaxial design maintains signal integrity by providing separate inner and outer shielding. The 8.0 meter cable length is precisely controlled to match the electrical length requirements of the 3300 XL transducer system.
Installation Requirements Route the cable between the probe and Proximitor Sensor avoiding sharp bends below the 25.4 mm minimum radius. Keep the cable away from high voltage conductors and strong electromagnetic fields. Connect the cable to the probe and sensor by finger-tightening the ClickLoc connectors until they lock into place. The maximum connector torque is 0.565 N·m (5 in·lbf). The total electrical length of the probe plus extension cable must equal the Proximitor Sensor electrical length.
Usage Precautions Do not exceed the minimum bend radius of 25.4 mm. Avoid routing the cable through areas with temperatures exceeding +177°C. The standard cable does not provide oil leak prevention. Order FluidLoc cable option for applications where oil leakage through the cable interior is a concern. Use connector protectors or silicone tape to seal connections in humid environments. Silicone tape is not recommended for connections exposed to turbine oil.
