Description
Bently 330750-80
Technical Specifications
- Product Series: 330750 LVDT Sensor
- Measurement Type: Absolute Displacement (Linear Position)
- Sensitivity: 8 mV/V/mm
- Thread Specification: M16 x 1 Metric Thread
- System Compliance: API 670 Standard
Functional Features
- Infinite Resolution: Provides theoretically infinite resolution and high linearity (±0.15%) for precise position control.
- High-Temperature Tolerance: Designed to operate continuously in extreme thermal environments up to +180°C.
- Infinite Mechanical Life: Non-contacting measurement eliminates mechanical wear, ensuring exceptional longevity.
Application Scenarios
Extensively deployed in steam turbines, high-temperature refining equipment, and nuclear power systems for monitoring valve position, thermal expansion, and differential expansion.
Performance Parameters
- Measurement Range: Customizable (e.g., ±10mm to ±500mm)
- Frequency Response: 0 to 200 Hz
- Operating Temperature Range: -55°C to +180°C
- Excitation Voltage: 1-5 Vrms, 400Hz-10KHz
Material Composition
The sensor housing is constructed from stainless steel with IP67 equivalent protection. Internal components utilize high-temperature insulation materials and special coatings to prevent performance degradation.
Structural Characteristics
Features a robust, sealed design capable of withstanding 20g vibration shock. The internal primary and secondary coil structure ensures precise electromagnetic coupling.
Working Principle
An AC excitation signal drives the primary coil. As the internal ferromagnetic core moves, it alters the magnetic coupling to the secondary coils. The resulting differential voltage is directly proportional to the core’s absolute position.
Installation Requirements
Securely mount using the M16 thread. Ensure the core moves freely within the tube without mechanical binding. Provide clean, stable AC excitation and proper shielding for the output signal.
Usage Precautions
Do not exceed the maximum operating temperature. Ensure the excitation frequency and voltage match the sensor’s specifications to prevent overheating or signal distortion.
