Description
Overview
GAOTek ultrasonic flaw crack detector is advanced type, can quickly, easily and without damage, accurately detect, locate, evaluate and diagnose various defects inside the work piece such as cracks, welds, pores, sand holes, inclusions, folding, etc. It has been applied for electric power, petrochemical, boiler and pressure vessel, steel structure, military, aerospace, railway transportation, automobile, machinery and other fields. It is an essential instrument for the non-destructive testing industry.
Features
- Linear suppression function with a maximum of 80 % screen height inhibition
- Switch between single crystal probe, double crystal probe
- Gate setting and alarm function with customizable position
- Two display modes with angle and K value.
- Automatic generation of DAC curve with up to 10 recorded points
- Automatic AVG curve generation with customization for two types of defects
- Delete function to remove specified content using storage group numbers
- Freeze and thaw functions for waveform and inspection parameters
- Sound path measurement and echo frequency analysis function
- Real time power status indication function
- Support for USB communication interface.
- Li battery with low power consumption for over ten hours of continuous
- Buzzer alarm setup during operation
- Lightweight, convenient, and easy to operate
Technical Specifications
| Power | Electronic |
| material sound velocity | 1000 to 9999 m |
| Frequency range | 0.4 to 10 MHz (wide band) 133.10 MHz (band pass) |
| Gain range | 0.1 to 10 db (step. 1 dB, 1 dB) |
| Delay range | 0 to 6000 mm |
| K value range | 0.20 to 500 |
| Inhibition range | 0 to 50 % |
| Increment | 0 to 20 dB |
| Quantitative line | -20 to 20 dB |
| Scrap line | -20 to 20 dB |
| Vertical linearity | < 3% measured by technical inspection bureau 17% |
| Horizontal linearity | < 0.3% measured by technical inspection bureau 0% |
| Transmitting power supply voltage | DC 200 V |
| Transmit pulse width | Pulse square wave. 050.6 us adjustable (step 0.01 us) |
| Transmitting pulse internal resistance | Not more than 10 Q |
| Transmit repetition rate | 25” 400 Hz Sound path<150 μ S 400/200HzFAST/SLOW 150 μ S 300 μ S 100/50HZ FAST/SLOW Sound path>600 μ s 50/25Hz FAST/SLOW |
| Probe damping resistance | about 120 Q fixed |
| Amplifier input | Gain 0 dB, 100% About 50 V peak at screen brightness Input noise is about 50 μ V peak bandwidth noise is about 16 μ v I Hz peak |
| Digital sampling | 8 bit real-time 50 MHz, equivalent to 200 MHz (Hardware Implementation) |
| Display mode | Detection +. Detection -. full wave |
| Display device | TFT industrial color LCD (320 x 240, 5.7 inches), LED backlight |
| LCD refresh frequency | 50 Hz |
| sluice gate | Inlet gate and loss gate, adjustable |
| Dynamic range | > 32 dB measured by technical inspection bureau 38dB |
| Sensitivity margin | > 58 dB (related to probe) measured by technical inspection bureau for 66dB |
| resolving power | > 26 dB (probe related) |
| Thickness measurement resolution | 0.0007 in (0.02 mm) (when the thickness is less than 650 mm) |
| Power Supply | Four No. Li-MH rechargeable batteries 2500mh external power supply 9 to 15 V, and 0.5 to 0.3 A |
| Battery power consumption | About 2 W (350 mm sound path, strong backlight, emission repetition rate fast) About 1.5 W (350 mm sound path, weak backlight, emission repetition rate slow) |
| Battery continuous working time | About 5 hours (350 mm sound path, strong backlight, emission repetition rate fast) About 6.5 hours (350 mm sound path, weak backlight, emission repetition rate SLW) |
| Storage ambient temperature | -4 °F to 158 °F (-20 °C to +70 °C) |
| Working ambient temperature | 14 °F to 122 °F (-10 °C to + 50 °C) |
| Overall dimension | 9.64 in × 5.98 in × 1.61 in (245 mm × 152 mm × 41mm) |
| Weight | 2.09 lb. (950 g) |