558H far-field low-frequency water-cooled wall tube eddy current flaw detector Introduction: The 558H far-field low-frequency water-cooled wall tube heat exchange tube eddy current flaw detector is equipped with an electromagnetic based built-in probe placed on the tested material. The probe has an excitation coil and one (or two) detection coils. The distance between the excitation coil and the detection coil is 2-3 times that of the detection material. The magnetic field lines (energy) emitted by the excitation coil diffuse outward through the material, and then diffuse inward again through the pipe wall with surface defects in the far-field region, and are received by the detection coil. The 558H remote field low-frequency eddy current flaw detector for water wall tube heat exchange tubes is not only a complete remote field eddy current testing system, but also has the advanced performance of conventional multi frequency and multi-channel eddy current testing instruments, especially with high sampling rate, ultra-low noise and high signal to noise ratio, making it a high-performance, multi-purpose and intelligent new eddy current testing equipment in the Asia Pacific region. Instrument application: 1. Bearing outer ring, bearing inner ring, gear blank, ring metal parts, automotive components 2. Non destructive testing of copper pipes, steel pipes, stainless steel pipes, welded pipes, aluminum-plastic pipes, steel wires, double-layer pipes, copper-clad aluminum, copper-clad steel, aluminum wire metal bars and other production lines online and offline. 3. Non destructive testing of oil casing, sucker rods, hollow shafts, etc 4. Testing of condenser pipes, air conditioner pipes, car oil pipes, etc 5. Suitable for non-destructive testing of various metal tubes, rods, and wires characteristic: 1. Automatic calibration system with probe 2. Fast analog-to-digital/quasi electronic balance 3. Automatic (manual) measurement of eddy current signal amplitude and phase, slow (adjustable) expansion playback of eddy current signal 4. Time base scanning and impedance plane display on the same screen 5. Equipped with configuration analysis function 6. Possess a unique non equal amplitude phase/amplitude alarm domain 7. Hardware alarm output port 8. Can store various detection programs and detection data in large quantities 9. Automatic amplitude, phase/defect depth curve display 10. Background selection between Cartesian coordinate system and polar coordinate system 11. Display the cross-sectional diagram of the in-service pipeline and the row and column numbers of the inspected pipeline on the same screen 12. Classification mark pipeline section diagram, forming an overview diagram of in-service pipelines 13. Graded statistical testing results (displayed in tables and histograms) for easy cumulative analysis and comparison 14. Desktop, portable, and industrial computer options 15. Comes with lithium battery (can be used for 6-8 hours when fully charged) Technical parameters: Frequency range: 1 Hz~5 MHz (far-field frequency 1Hz~5KHz); Gain: 0-90dB, step size 0.5dB Phase rotation: 0~359 °, step 1 ° Gain ratio (Y/X): 0.1~10 Gain/phase measurement: manual/automatic Display mode: dots/lines/blanking High pass filtering: off, 0~500Hz Low pass filtering: off, 10-10kHz Number of digital filter points: 1~100 Probe excitation signal amplitude: 1-8V, accuracy 1V Penetrating the thickness of the oxide layer on the surface of the steel pipe: ≤ 6mm. Penetrating steel pipe wall thickness: ≤ 10mm alloy steel. Detection range of pipe diameter: Φ 25~Φ 1000mm. Defect types detected: inner and outer wall corrosion pits, erosion thinning, hydrogen corrosion, cracks. Magnetizing equipment: No need. Detection speed: 0-8 m/min, capable of static detection. Detection technology: Low frequency eddy current phase analysis technology. Human computer dialogue: dust-proof touch screen operation. Display: Equipped with a backlit semi reflective LCD screen, suitable for long-term observation in darkness or direct sunlight. Scan: erase, refresh, and retain three scanning modes. Filtering: digital and analog filtering. Drive: 1-12V, adjustable in 16 levels. Zeroing: Response time<0.5 seconds. Storage: It can store/reproduce over 100 sets of parameters and graphic data. Probe: shell, rubber guide wheel, weight ≤ 0.9 Kg
Introduction: The 558H far-field low-frequency water-cooled wall tube heat exchange tube eddy current flaw detector is equipped with an electromagnetic based built-in probe placed on the tested material. The probe has an excitation coil and one (or two) detection coils. The distance between the excitation coil and the detection coil is 2-3 times that of the detection material. The magnetic field lines (energy) emitted by the excitation coil diffuse outward through the material, and then diffuse inward again through the pipe wall with surface defects in the far-field region, and are received by the detection coil. The 558H remote field low-frequency eddy current flaw detector for water wall tube heat exchange tubes is not only a complete remote field eddy current testing system, but also has the advanced performance of conventional multi frequency and multi-channel eddy current testing instruments, especially with high sampling rate, ultra-low noise and high signal to noise ratio, making it a high-performance, multi-purpose and intelligent new eddy current testing equipment in the Asia Pacific region.
