Description
Bently Nevada 330854-040-025-05
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330854-040-025-05 |
| Cable Length | 4.0 meters (13.1 feet) |
| Cable Type | Armored high-temperature FluidLoc cable |
| Agency Approval | Multiple Approvals |
| Cable Characteristic | 75 Ω triaxial |
| Insulation Material | Perfluoroalkoxy (PFA) |
| Capacitance | 69.9 pF/m (21.3 pF/ft) typical |
| Operating Temperature | -35°C to +200°C (-31°F to +392°F) continuous |
| Peak Temperature | +250°C (482°F) intermittent |
| Weight | 0.45 kg (1.0 lb) approximate |
Functional Features The extension cable features gold-plated brass high-temperature ClickLoc connectors at both ends for secure, vibration-resistant connections. The armored construction provides protection against abrasion, crushing, and chemical exposure. The FluidLoc design prevents moisture and oil from migrating through the cable interior. The cable is designed for complete interchangeability within the 3300 XL 25 mm system without matching or calibration.
Application Scenarios Connecting 25 mm proximity probes to Proximitor Sensors in steam turbine differential expansion monitoring systems, extending probe reach in large turbine installations, routing signals through hot machine areas in power plants, connecting vibration probes in petrochemical processing equipment, axial position measurement systems in heavy machinery.
Performance Parameters The cable maintains a characteristic impedance of 75 Ω with capacitance of 69.9 pF/m. The armored FluidLoc cable maintains performance specifications across the full -35°C to +200°C temperature range. When combined with a 1.0 meter probe, this cable creates a 5.0 meter electrical length system compatible with 5.0 meter Proximitor Sensors. The signal attenuation is minimal across the 0 to 2.7 kHz frequency range.
Material Composition The cable conductors are copper with PFA insulation. The shielding is braided copper. The connector bodies are gold-plated brass. The armor is flexible stainless steel with protective outer jacket. The FluidLoc construction includes specialized barriers to prevent fluid migration.
Structural Characteristics The cable has a 4.0 meter overall length with precise electrical length tolerances. Both ends feature high-temperature ClickLoc connectors. The armored construction has an increased outside diameter compared to non-armored versions. The cable is marked with the part number and electrical length information.
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 FluidLoc construction prevents moisture from entering the cable interior while maintaining electrical performance. The armor protects the cable from mechanical damage in harsh industrial environments.
