GTJ-U600 full digital ultrasonic flaw detector
Usage overview
The GTJ-U600 all-digital ultrasonic flaw detector can quickly and
flawlessly and accurately detect various defects (cracks,
inclusions, pores, etc.) inside the workpiece. The product is
unique in design, easy to operate, sturdy and durable. It adopts
full Chinese true color liquid crystal display, and can choose
different color schemes according to the environment. Under outdoor
strong light, the liquid crystal brightness can be adjusted. The
master-slave menu design, with digital shuttle wheel, easy to
operate, leading technology. It is widely used in aerospace,
railway transportation, building steel structure, boiler pressure
vessel and other fields. It is necessary for defect detection,
quality control, in-service safety monitoring and life assessment
in railway, shipbuilding, metallurgy, chemical, shipbuilding,
petroleum and other industries. Professional precision instruments.
Features
Flaw detection standard: Built-in common detection standards in
various industries, direct call, convenient and fast.
Weld joint diagram: Weld shape parameters can be set, and the weld
map and the position of the defect in the weld are visually
displayed in the flaw detection.
Automatic calibration: automatic calibration of probe zero and
probe angle (K value); automatic measurement of sound speed.
Crest memory: The highest wave of defects is retrieved in real
time, and the maximum value of defects is recorded.
Φ value calculation: Straight probe forgings are automatically
calculated and the defect equivalent size is automatically
determined after the highest wave is found.
Defect location: display defect level, depth (vertical), and sound
path position in real time.
Quantification of defects: The defect equivalent dB value is
displayed in real time.
Defect Qualitative: It is convenient for manual experience judgment
by echo envelope waveform.
DAC/AVG: The curve is automatically generated, the sampling points
are unrestricted, and compensation and correction can be performed.
The curve automatically floats with the gain, automatically expands
with the sound path, and automatically moves with the delay. Can
display AVG curves of any aperture.
AWS D1.1: American Welding Society Standard, which provides a
dynamic reflector "defect rating" for all types of AWS weld
inspection applications. Manual calculation can be avoided to
improve detection efficiency. (optional)
Crack height measurement: The crack height is automatically
measured and calculated using the endpoint diffraction wave.
Widening in the door: Enlarge the echo details for easy echo
analysis.
Continuous recording: Record waveforms in real time, store and play
back.
Waveform Freeze: Freezes the waveform displayed on the screen for
defect analysis.
Echo coding: Displaying the echo display area in 1~6 times in
different colors, which is convenient for judging the defect
position.
Gain: The total gain is 110dB, with 0, 0.1dB, 2dB, and 6dB steps.
The unique fully automatic gain adjustment and sweep gain function
make the flaw detection fast and accurate.
Gate alarm: door position, door width, door height can be adjusted
arbitrarily; B gate can be set to enter wave alarm or wave loss
alarm; buzzer and LED light in the gate (LED lamp alarm in noisy
environment is very effective) alarm and close .
Real-time clock: Tracks the date and time of the real-time flaw
detection, and records the storage.
Battery module: High-capacity lithium battery module, online
charging and offline charging, which are convenient for flaw
detection personnel.
The main technical parameters
| Product Specifications | GTJ-U600 Non-Metal Ultrasonic Detector |
| Detection range | (0~9999)mm |
| Operating frequency | (0.2~20)MHz |
| Sound speed range | (1000~15000) m/s |
| Dynamic range | ≥36dB |
| Vertical linearity error | ≤2.5% |
| Horizontal linearity error | ≤0.1% |
| Resolution | >40dB (5P14) |
| Sensitivity margin | >65dB (deep 200mm Ф 2 flat bottom hole) |
| Digital suppression | (0~80)%, does not affect linearity and gain |
| Electrical noise level | ≤ 8% |
| Probe type | Straight probe, oblique probe, dual crystal probe, penetration
probe |
| Gate | entrance gate, loss gate; single gate reading, double gate reading |
| Pulse amplitude | low (300V), medium (500V), high (700V) grading selection |
| Pulse width | continuously adjusted in the range of (0.1~0.5)μs to match probes
of different frequencies |
| Probe damping | 100Ω, 200Ω, 400Ω optional |
| Real-time hardware sampling | High-resolution 10-bit AD converter with sampling speed of 160MHz
and high-fidelity waveform |
| Detection method | positive half wave, negative half wave, full wave, radio frequency
detection |
| Filter band | (0.2~20)MHz, fully automatic matching according to probe frequency,
no need to set manually |
| Data storage | 100 sets of flaw detection parameter channels, 1000 flaw detection
echo signals and parameters |
| Communication interface | USB2.0 high-speed communication transmission interface |
| Power supply | (DC) 9V; lithium battery for more than 8 hours of continuous
operation |
| Dimensions | 263×170×61 (mm) |
| Ambient temperature and humidity | Temperature: (-10~50) °C Humidity: (20~95)%RH |
