Digital Multi-channel Ultrasonic Flaw Detector

KW-4 Performance Characteristics:

1. Use man-machine dialogue and menu-style operation with touch screen, physical buttons and shuttle knob three operating modes. It is simple and easy to use.
2. With built-in smart Pinyin input method, full touch information input, but also with external USB keyboard and mouse, simple and practical.
3. Eight inspection channels directly switched by the electronic switch and touch screen, and can automatically transfer the corresponding detection process files.
4. After one device debugging is completed, the parameters can be backed up to the computer or U disk and can also be copied to another device.
5. Supporting online download upgrade firmware, users do not need to return the instrument to the factory; they can independently upgrade the firmware through U disk.
6. The operator can complete calibration and setting of the parameters such as the speed of sound, incident zero point, refraction angle and the leading edge of the probe in just a few minutes. The instrument has built-in various shaft inspection processes and the daily performance verification is simple and fast.
7. Preview and print prescribed format of various reports in "railway truck axle assembly, maintenance and management rules" and "railway passenger axle assembly, maintenance and management rules". (Car -52A, car -53A, vehicle -426, vehicle -429B, car 53-K10, car 53-K11, car 53-K12, car 52-K10, vehicle 53 -K13, car 53-K14, car 53-K15, car 52-K11)
8. Use average and related computer signal processing technology to reduce the random noise and external electromagnetic interference, improve the signal to noise ratio.
9. Built-in 16GB storage space (about 100,000 detection files), and support USB, network expansion
10.  With the use of high-brightness TFT true color touch display, fast response, real-time, clear and stable display of waveform, positioning values, and adjustable brightness, have a good visibility both inside and outside the field.
11. Can be connected with an external U disk to dump data, and connected with the computer communication, waveform, graphics and files through the LAN interface, to achieve the results of the computer management.
12. Bus axles, bus rims and truck axle detections can be conducted independently with no interfere to each other.

KW-4 Technical Parameters
Number of channels: 8 channels
Display: 8.4 inch TFT touch screen, 800 × 600 resolution
Hardware interface: one LAN interface, two USB2.0 interfaces, one VGA interface, one encoder interface
Support the printer: USB interface to print, can be connected with an external type of printer
Repeat frequency: 30Hz ~ 2000Hz adjustable
Working mode: single crystal inspection, double crystal detection
Scanning range: 0mm ~ 9999mm steel longitudinal wave
Sampling frequency / digit: 200MHz / 8bits
Detection mode: full detection, positive detection, negative detection, radio frequency waves
Storage capacity: 16GB
Operating frequency: 0.5MHz ~ 15MHz
Output impedance: 100 ~ 500Ω
Launch voltage: 300 ~ 500V
Gain adjustment: 120dB (0.1dB, 1dB, 2dB, 6dB step adjustable)
Sound speed range: (1000 ~ 9999) m / s
Dynamic range: ≥ 30dB
Vertical linearity error: ≤ 3%
Horizontal linearity error: ≤ 0.5%
Resolution: ≥ 30dB (2.5P20)
Sensitivity margin: > 60dB (deep 200mmΦ2 flat bottom hole)
Power supply: DC adapter 15V / 6A
Working time: 9 hours of continuous work (environmentally friendly lithium battery-powered)
Ambient temperature: (-20 ~ 50) ℃ (reference value)
Relative humidity: (20 ~ 95) % RH
Dimensions: 260mm (L) x 185mm (W) x 75mm (H)
Weight: 2.77kg