Description
Bently 330103-00-10-10-02
Technical Specifications
- Product Series: 3300 XL 8mm Eddy Current Sensor System
- Probe Diameter: 8 mm (0.315 inches)
- Sensitivity: 200 mV/mil (7.87 V/mm) ± 6.5%
- Thread Specification: M10 x 1 Metric Thread
- System Compliance: Fully compliant with API 670 Standard
Functional Features
- High Interchangeability: The probe, extension cable, and proximitor are fully interchangeable without the need for individual bench calibration.
- Superior RFI/EMI Immunity: Engineered with advanced shielding to resist radio frequency interference, ensuring clean signal transmission in harsh industrial environments.
- Dual Measurement Capability: Provides both a DC voltage proportional to the average gap and an AC voltage representing dynamic vibration.
Application Scenarios
Widely utilized in power generation, petrochemical, and metallurgical industries. Typical applications include radial vibration and axial displacement monitoring for steam turbines, gas turbines, centrifugal compressors, and large electric motors.
Performance Parameters
- Linear Measurement Range: 80 mils (2.0 mm)
- Frequency Response: 0 to 10 kHz (-3 dB)
- Operating Temperature Range: -52°C to +177°C (-62°F to +350°F)
- Supply Voltage: -24 VDC nominal (-17.5 to -26 VDC range)
Material Composition
The probe body is constructed from high-strength, corrosion-resistant stainless steel. The internal coil utilizes premium materials to guarantee exceptional thermal stability and measurement precision across wide temperature ranges.
Structural Characteristics
Features a ruggedized design with TipLoc mold technology ensuring a permanent bond between the probe tip and body. It includes a Viton O-ring for differential pressure sealing and a CableLoc strain relief design capable of withstanding 330 N (75 lbs) of pull force.
Working Principle
Based on the eddy current effect, the probe’s internal coil generates a high-frequency alternating magnetic field. When a conductive metal shaft enters this field, eddy currents are induced, altering the coil’s impedance. The proximitor demodulates this impedance change into a precise voltage signal.
Installation Requirements
The probe must be installed securely in a threaded mounting hole. Initial installation gap voltage must be precisely set within the linear range center (typically -9 to -10 VDC) using a calibrated gap setting tool.
Usage Precautions
Never replace the probe while the system is energized to prevent damage to the proximitor circuitry. Regularly inspect the probe face for metallic debris or oil deposits, and maintain the minimum cable bend radius to avoid internal conductor fracture.
