Description
Bently Nevada 330703-000-040-90-02-CN
Technical Specifications:
- Product Series: 3300 XL 11mm Eddy Current Sensor System
- Probe Diameter: 11mm
- Thread Specification: M14×1.5 Metric Thread
- Unthreaded Length: 000 = 0mm
- Overall Case Length: 040 = 40mm
- Total Cable Length: 90 = 9.0 meters
- Connector Type: 02 = Miniature coaxial ClickLoc connector, standard cable
- Agency Approval: CN = Country-specific certification
Functional Features:
- Larger 11mm sensing diameter provides a 4mm linear range, double that of the 8mm system
- Non-contact measurement eliminates mechanical interference with the target
- Supports both static (displacement) and dynamic (vibration) dual measurement
- Fully interchangeable with 3300 XL 11mm proximitor modules and extension cables without individual matching
- TipLoc molding technology ensures robust probe tip-to-body connection
- CableLoc design guarantees 330N pull force resistance at the cable-to-housing junction
Application Scenarios:
- Radial vibration and displacement measurement on large rotating machinery
- Axial (thrust) displacement monitoring
- Keyphasor and speed measurement
- Steam turbine and hydro turbine shaft vibration monitoring
- Applications requiring a larger linear range than the 8mm system can provide
Performance Parameters:
- Sensitivity: 3.94 V/mm (100 mV/mil)
- Linear Range: 4.0mm (160 mils)
- Frequency Response: 0 to 8 kHz
- Supply Voltage: -17.5 VDC to -26 VDC, maximum current 12mA
- Recommended Gap Setting: 2.5mm (100 mils)
- Recommended Minimum Shaft Diameter: 152mm (6 inches)
Material Composition:
- Probe Tip: PPS (Polyphenylene Sulfide) high-performance plastic
- Probe Housing: Stainless steel
- Cable: Standard coaxial cable
Structural Features:
- Cylindrical probe body with 11mm sensing face at the front end
- M14×1.5 metric thread for mounting fixation
- Integrated 9.0-meter rear cable connected to extension cable via ClickLoc miniature coaxial connector
- Non-armored design suitable for general industrial environments
Working Principle: When high-frequency current flows through the internal coil of the probe, an alternating magnetic field is generated around the probe tip. When a conductive metal surface enters this magnetic field, eddy currents are induced on the metal surface. These eddy currents generate a reverse magnetic field that alters the impedance of the probe coil. The proximitor detects this impedance change and converts it into a DC voltage signal proportional to the gap distance.
Installation Requirements:
- The total length of probe cable plus extension cable must match the nominal system length of the proximitor (5-meter or 9-meter)
- The mounting threaded hole must be pre-machined with M14×1.5 internal thread
- The probe mounting bracket must have sufficient rigidity
- The target shaft surface must be smooth, scratch-free, with surface roughness better than 1.6μm
- Gap voltage must be set according to the recommended 2.5mm gap under static conditions
Usage Precautions:
- Never insert or remove probe connectors while energized
- Coaxial cables must not be bent at right angles; the minimum bending radius must be maintained
- Extension cable shielding must be grounded at a single point only
- Signal cables must be kept away from high-voltage power cables
- Regularly verify probe linearity using a TK-3E calibration instrument
