Description
Overview
GAOTek rail weld flaw detector can simultaneously connect various probes required for rail weld ultrasonic flaw detection, preset flaw detection parameters, on-site flaw detection, one button switch, fast and simple, excellent performance, and powerful functions.
Features
- Easy to operate, as tailored according to the requirements of the rail weld flaw detection process
- Small volume
- Light weight
- Low power consumption
- High performance
- USB interface, automatic gain control, DAC, gate expansion, screen copy, etc
- B display mark map of weld seam
- The detection process has a schematic diagram of step prompts
- Select the internal storage or U disk storage for short film recording
- 20 Hz to 500 Hz has 10 adjustable pulse repetition rates
- Amplitude of defects of the same size in different depths is automatically adjusted
- The 5.7 in imported color TFT display screen
- Different color schemes meet the needs of different use scenarios and habits
Technical Specifications
Vertical linearity error | ≤3% |
Attenuator error | Every 12 dB ±1 dB |
Dynamic range | ≥32 dB |
Electrical noise level | ≤10% (frequency band: 1 MHz to 5 MHz) |
Flaw detection sensitivity margin | ≥65 dB (2.5Z20N probe) |
Sheet resolution | ≤0.12 in (3 mm) (5C10N probe) |
Far-field resolution | ≥26 dB |
Horizontal linearity error | ≤0.5% |
Detection range | 0 in to 511.81 in (0 mm to 13000 mm)
(Steel longitudinal wave) |
Pulse shift range | 0.39 in to 39.37 in (-10 mm to 1000 mm) (Steel longitudinal wave) |
Material Sound velocity | 15784.03 in/s to 590551.18 in/s
(400 m/s to 15000 m/s) |
Probe zero range | 0 µs to 200 µs |
Gain adjustment | Range: 0 dB to 110 dB;
Adjusting gear: 0.5 dB / 2 dB / 6 dB / 12 dB |
Working frequency | 1 MHz to 5 MHz / 0.5 MHz to 8 MHz |
Launch mode | Weak/strong |
Damping | Low/High |
Inhibition | 0% to 80% |
Detection mode | Negative detection/positive detection/bidirectional detection/filtering/RF |
Repetition frequency | Adjustable in 10 grades (20 Hz to 500 Hz adjustable, but limited by detection range, material sound velocity, pulse shift, probe zero point, etc) |
Storage | 500 sets of data sets, including instrument settings, flaw detection status, echo patterns, etc |
Video recording | Short film recording function (including A-scan and weld seam marking map). Short film playback of upper computer. Internal saving or USB flash disk saving can be selected. |
Marking diagram of weld B | Identification mark used for distribution of alarm signals on rail weld section. This includes automatic and manual marking. |
Automatic gain function | Automatically adjust the echo amplitude in the gate to the specified amplitude
Amplitude setting: 40% / 50% / 60% / 70% / 80% / 90% / 100% |
Gate | 1 measuring alarm gate
Gate mode: off/wave inlet/wave loss Gate lifting: 0% to 109% Gate width: 1% to 109% Gate level: 10% to 90% |
Alarm | off /on, Enable and disable buzzer alarm sound |
Automatic correction function | Used to correct the material sound velocity and probe zero point
Correction mode: sound speed + zero point |
Angle measurement function | Used to measure probe angle |
DAC function | Used to make, set up, and apply DAC curves |
PAC function | In tandem/K-scan based on encoder, the same equivalent signal at different positions of the weld is compensated for gain, so that the reflected signal of the same equivalent at each position is close to the same detection sensitivity |
Transfer function | Transfer the internal data set of the instrument to the USB disk through the USB interface |
Data storage | Built in SD card (4 GB) |
Return to factory setting function | Restore the instrument settings to the factory state |
Power Supply | Adapter or lithium battery
Adapter: AC input 100 V to 240 V, DC output: DC 12 V Battery: 6.4 V to 8.4 V |
Battery working time | ≥6 hrs (Related to the brightness of background light) |
Working temperature | -4 °F to 122 °F (-20 ℃ to 50 ℃) |
Size | 5.98 in x 9.45 in x 2.68 in
(152 mm × 240 mm × 68 mm) (Width × high × Deep) |
Display | 5.7 in (144.78 mm) High brightness TFT LCD, 320 pixels × 240 pixels |
Weight | About 3.09 lb (1.4 kg) (including battery) |