Description
Bently Nevada 330730-080-03-05
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330730-080-03-05 |
| Cable Length | 8.0 meters (26.2 feet) |
| Connector and Cable Type | Miniature coaxial ClickLoc connector with connector protector, standard cable |
| Agency Approval | Multiple Approvals (CE, UL, CSA) |
| 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 | 0.29 kg (0.64 lbs) |
| Minimum Bend Radius | 25.4 mm (1.0 in) |
Functional Features The cable features gold-plated brass ClickLoc connectors with integrated fluorosilicone connector protectors at both ends. The multiple agency approval option ensures compliance with international safety standards for hazardous area installations. The triaxial 75 Ω construction maintains impedance matching. The FEP insulation provides high temperature capability and chemical resistance. The cable is fully interchangeable within the 3300 XL 11 mm system.
Application Scenarios Power plant generator monitoring in hazardous areas, chemical mixer shaft measurement in classified environments, oil refinery pump monitoring requiring agency approvals, paper production line equipment in regulated industries, offshore platform rotating equipment monitoring, nuclear power plant vibration monitoring systems, petrochemical processing equipment in hazardous locations.
Performance Parameters The cable delivers 69.9 pF/m capacitance with stable electrical characteristics across the full temperature range. The DC resistance is 2.0 ± 0.5 Ω core-to-core for the 8.0 meter length. The multiple agency approvals cover intrinsically safe and non-incendive installations according to ATEX, IECEx, and CSA standards. The cable maintains performance specifications across the full -52°C to +177°C temperature range.
Material Composition The cable uses copper conductors with FEP dielectric insulation. The shielding system consists of braided copper shields. Connector bodies are machined from brass and gold-plated. Connector protectors are made from fluorosilicone material. The outer jacket is FEP. The cable is non-armored for maximum routing flexibility.
Structural Characteristics The 8.0 meter overall length is manufactured to precise electrical length tolerances. Both ends are terminated with miniature coaxial ClickLoc connectors with integrated connector protectors. The cable outside diameter is 3.7 mm maximum. The construction features separate inner and outer shields for optimal noise immunity. The cable is marked with the part number, electrical length, and agency approval information.
Working Principle The extension cable carries the RF excitation signal from the Proximitor Sensor to the probe tip and returns the amplitude-modulated signal containing the gap distance information. The triaxial design uses the center conductor for the signal, the inner shield for the RF return path, and the outer shield for ground and EMI protection. The connector protectors ensure environmental sealing at the connection points.
Installation Requirements Install the cable between the probe and Proximitor Sensor ensuring the ClickLoc connectors fully engage and lock. Apply only finger-tight torque to the connectors. Maintain a minimum bend radius of 25.4 mm throughout the cable route. Secure the cable with appropriate clamps. Verify that the total electrical length matches the Proximitor Sensor specification. Follow hazardous area installation requirements per Bently Nevada drawing 141092 for intrinsically safe installations.
