Description
Bently Nevada 330190-035-00-00
Technical Specifications:
- Total System Length: 3.5 meters
- Probe Type: 3300 XL 8mm eddy current proximity probe
- Cable Type: Standard non-armored
- Connector Type: ClickLoc gold-plated copper connectors
- Conductor Type: 75Ω triaxial coaxial structure
- Insulation Material: FEP (Fluoroethylene Propylene)
- Operating Temperature Range: -52°C to +177°C
- Minimum Bend Radius: 25.4mm (1 inch)
- Certification: No special certification required
- Compliance Standard: API 670 (4th Edition)
Functional Features:
- Complete probe assembly integrating probe tip, probe cable, and extension cable in one unit
- 75Ω triaxial coaxial structure ensures impedance matching and signal transmission integrity
- FEP insulation material provides excellent chemical resistance and high-temperature performance
- Multi-layer shielding design effectively resists electromagnetic interference in the field
- ClickLoc gold-plated copper connectors ensure corrosion-resistant, tool-free reliable connections
- Fully interchangeable with the 3300 XL 8mm system, no individual calibration required
- Backward compatible with non-XL 3300 series 5mm and 8mm components
Application Scenarios:
- Steam turbine shaft vibration monitoring
- Compressor radial vibration measurement
- Generator bearing vibration monitoring
- Pump and fan shaft vibration monitoring
- Applications requiring a compact 3.5-meter total system length
- General-purpose rotating machinery condition monitoring
Performance Parameters:
- Cable Capacitance: 69.9 pF/m (21.3 pF/ft)
- Output Impedance: 50Ω
- Sensitivity Stability: Output changes less than 2mV per 1 volt change in input voltage
- Frequency Response: 0 to 10kHz
- Linear Range: 2mm (80 mils) for 8mm probe
- Sensitivity: 7.87 V/mm (200 mV/mil)
Material Composition:
- Conductor: Copper core with braided shielding layer
- Insulation Layer: FEP (Fluoroethylene Propylene)
- Connector: ClickLoc gold-plated copper
- Outer Jacket: Standard industrial-grade polymer
- Probe Tip: Precision-wound coil encapsulated in high-strength housing
Structural Characteristics: Standard non-armored coaxial cable assembly with a triaxial structure. The probe tip is housed in a compact cylindrical body with M10×1 mounting thread. The cable assembly is lightweight and flexible, suitable for routing through conduit or cable trays. The 3.5-meter total length is suitable for installations where the Proximitor is located relatively close to the probe mounting point.
Working Principle: The extension cable serves as the signal transmission bridge in the eddy current sensor system, transmitting the high-frequency signal generated by the probe tip coil to the Proximitor without loss through the coaxial structure. The outer shielding braid of the coaxial structure prevents external electromagnetic interference from intruding, while the inner signal line maintains constant impedance. Once the signal reaches the Proximitor, it undergoes amplification, demodulation, and linearization, ultimately outputting a DC voltage signal proportional to the distance between the probe tip and the target surface.
Installation Requirements:
- Ensure the total system length matches the Proximitor configuration (5-meter or 9-meter system)
- Cable routing must maintain at least 30cm clearance from high-voltage power cables
- Maintain a minimum bend radius of 25.4mm; prohibit excessive bending
- ClickLoc connectors are hand-tightened; do not use tools
- The shielding layer must be grounded at a single point on the Proximitor end; prohibit multi-point grounding to prevent ground loops
- Use conduit or cable trays for protection in areas with mechanical damage risk
Usage Notes:
- The “00” code indicates a standard non-armored cable without connector protector, suitable for clean indoor environments
- Inspect connector condition at each maintenance interval
- Never cut or splice the extension cable; any modification will destroy impedance matching
- Regularly inspect connector connection status to ensure there is no looseness or corrosion
- Avoid prolonged exposure of the cable to high-temperature environments (exceeding 177°C)
- When replacing the cable, select a specification that exactly matches the original model
