Overview
The MET802 Portable eddy current Flaw detector is based on the principle of electromagnetic induction and is designed with advanced digital electronic technology, eddy current technology and microprocessor technology. It is equipped with a 6-inch or 8-inch TFT LCD touch screen. The instrument integrates computer functions. Sensitivity is high and performance is stable. It can realize multi-channel simultaneous detection and intelligent data analytics, and can expand magnetic memory, coating thickness measurement, conductivity measurement and other functions. Widely used in all kinds of metal pipe and rod, automotive parts, bearings, oil casing, oil control rod, ring metal parts of nondestructive testing and scientific research and testing in colleges and universities, is to improve production efficiency and save production costs of precision testing instrument.
Features
1. Modular compact design, small size, light weight, easy to carry, can be customized according to customer needs.
2. With a wide test frequency range of 10Hz-10MHz (10Hz-16MHz in the specification parameters), it can meet the detection requirements of many different metals.
3. Adopt color TFT-LCD liquid crystal touch display, menu design, easy to operate and intuitive display.
4. One-button multi-mode switching, easy to operate, can quickly detect surface defects of various metal workpieces.
5. With customizable magnetic memory, coating thickness measurement, conductivity measurement and other extended functions.
6. Equipped with a large-capacity rechargeable battery to meet the needs of long-term outdoor work, it can also be directly connected to a 220V power supply.
7. Compatible and flexible customization of various types of Probes (such as inner wear, outer wear, flat, point type, weld, fan, etc.).
8. It can realize multi-channel and multi-frequency simultaneous online detection, and can realize limited mixing, with high detection efficiency and high Sensitivity.
9. Using eddy current impedance plane and time base scanning display technology, the eddy current signal can be displayed in multiple windows on the same screen in real time.
10. The Chinese and English versions switch with one click, support automatic and manual amplitude and phase adjustment, and quickly realize digital analog electronic equilibrating.
11. Real-time alarm output, providing a variety of alarm window modes, and supporting non-equal amplitude and asymmetric phase alarm area setting.
12. Adopt professional "digital filtering" to effectively suppress interference signals and ensure the accuracy and stability of detection.
13. With large-capacity storage capacity, it can store a large number of detection programs and data, with signal acquisition, reading, transmission, analysis, storage, playback and other full intelligent processing functions, and can connect the printer output file.
Principle
The eddy current detection technology is based on the principle of electromagnetic induction. The instrument loads the excitation signal into the Probe coil. When the Probe approaches the metal surface, the alternating magnetic field around the coil will generate an induced current on the metal surface. The size, phase and flow form of the eddy current are affected by the electrical conductivity of the specimen, and the magnetic field generated by the eddy current will change the impedance of the detection coil. When defects appear on or near the surface of the conductor or material performance changes, the intensity and distribution of the eddy current will be affected, which will cause changes in the voltage and impedance of the detection coil. By detecting this change, the instrument indirectly feeds back the existence of defects in the conductor and changes in the performance of the metal material.
Applications
High-speed nondestructive testing of various metal pipe rods and wires, quality control links in the manufacturing of metal parts such as bearings, rings, and auto parts, universities, scientific research and testing, etc
Standards
ASME、GB/T、YB、EN、JIG、API-5L、API-5CL、MH/T
Steps
The information does not provide specific operation steps.
Notice
* operating temperature: 0 ℃ - + 45 ℃.
Storage temperature: -20 ° C - + 50 ° C.
* relative humidity: ≤ 85%.
* The surrounding environment should have no strong vibration, no strong magnetic field, no corrosive medium and serious dust.
