NDT681 Plastic case ultrasonic flaw detector
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Description
NDT681 Plastic case ultrasonic flaw detector
1.Overview:
This instrument is a portable industrial nondestructive testing instrument, which can detect, locate, evaluate and diagnose various defects (cracks, inclusions, pores, etc.) in the workpiece quickly and conveniently, without damage and accurately. It can be used in the laboratory or in the engineering field. The instrument can be widely used in manufacturing industry, iron and steel metallurgy industry, metal processing industry, chemical industry and other areas requiring defect detection and quality control, but also widely used in aerospace, railway traffic, boiler pressure vessels and other fields of online safety inspection and life assessment.
The instrument is master-slave menu, and designed with shortcut keys and digital shuttle rotary wheel, using full digital true color high-resolution liquid crystal display, can choose the operating interface style according to the environment, liquid crystal brightness can be freely set, interface and waveform display more delicate and humanized. The large capacity and high performance lithium-ion battery can extend the continuous working time of the instrument to more than 12 hours; The instrument is light, small and portable, can be held by one hand, durable, and leads the industry trend.
The core hardware is designed with ARM+FPGA, and the software uses a high-reliability multi-task operating system, which makes the instrument greatly improved in the aspects of use function, portability, durability and reliability.
NDT681 Plastic case ultrasonic flaw detector
2.Functional characteristics
External structure
Ergonomic structure design, waterproof and oil proof.
Equipped with rotary damping and keyboard 2 kinds of stand, suitable for indoor and outdoor different use occasions.
The rubber sheath feels fine and is easy to use.
High permeability glass panel, extremely hard, abrasion and scratch resistant.
Display interface
Full Chinese display, master-slave menu, wizard operation, and shortcut keys and digital wheel assistance, easy to operate.
The use of IPS(In-Plane Switching) full digital LCD display, color, response speed and so on significantly improved.
Wide viewing Angle, even when viewed from the side, the color and details of the picture change very little.
60Hz display refresh speed, quick display of small defect waveform.
The resolution is 640X480, and the display of the interface and waveform is more delicate and user-friendly.
The high brightness display can be used under bright light.
4 operating interface styles to choose from,
Liquid crystal brightness can be set freely.
Screenshots and PDF inspection reports
Real-time screenshot of all pages and inspection report, and save as BMP picture to U disk, can be set to color or grayscale picture.
Export the inspection report as PDF file and save it to U disk for easy archiving and printing.
All contents of the PDF file can be customized according to user needs.
BMP pictures and PDF files can be viewed in real time on your computer or mobile phone.
Weld diagram
Dedicated weld menu to set weld shape, groove, real-time defect location indication according to plate thickness and welding method.
Probe frequency detection
The actual spectrum of the probe is obtained by FFT calculation of the echo waveform.
Real-time detection of current probe frequency characteristics and damage degree.
Detection range
Zero interface incidence: 0~15000mm(steel medium and longitudinal wave), can be adjusted continuously
Transmitting pulse
Pulse amplitude: 100V, 200V, 250V, 300V, 350V, 400V, 450V, 500V classification selection, suitable for a wide range of probes
Pulse width: Continuously adjusted in the range of (0.01 to 0.50)µs to match different probe frequencies
Probe damping: 50Ω, 150Ω, 300Ω, 400Ω optional, to meet the sensitivity and resolution of different working requirements
Working mode: single crystal straight probe, single crystal oblique probe, double crystal straight probe, double crystal oblique probe, penetration detection
Amplify reception
Hardware real-time sampling: high resolution 16-bit AD sampling, sampling speed 320MHz, waveform high fidelity
Detection mode: positive half wave, negative half wave, full wave, radio frequency detection
Filter frequency band (0.2~20) MHz, automatic matching according to the probe frequency, no manual setting.
Gate reading: Single gate and double gate reading mode is optional; Peak reading in gate
Gain: Total gain 110dB, set 0.1dB, 1dB, 2dB, 6dB step value, unique automatic gain adjustment and scanning gain function, so that the flaw detection is fast and accurate.
Gate alarm
Gate A and gate B have the same effect, and the door position, door width and door height can be adjusted arbitrarily; Optionally set forward or lost wave alarm; And accompanied by LED light display
Data storage
Instrument built-in mass memory, data and files will not be lost due to power failure.
The combination parameters of various probes and instruments and industry inspection standards can be pre-adjusted and stored in the designated inspection channel, and 500 groups of inspection channel storage and 1000 groups of inspection report storage are supported inside the instrument.
The inspection channel and inspection report can be exported through the USB interface or USB flash drive, and the inspection information can be stored unlimited through the USB flash drive.
Video function
The instrument supports the recording of the flaw detection process and saves it as a video file, which can be played back by the instrument or special software. The machine supports a maximum of 10 video files, each video file maximum of 5 minutes. There is no limit to the number and duration of videos recorded via USB flash drive. Video recording and playback of the flaw detection process provides great convenience for learning the flaw detection, and also facilitates the preservation of the flaw detection process for future analysis.
Playback support pause, fast forward, fast back, stop function
Flaw detection function
Inspection standards: Built-in inspection standards commonly used in various industries, direct invocation, convenient and fast
Automatic calibration: probe zero and probe Angle (K value) automatic calibration function; Automatic sound speed measurement function
Wave crest memory: real-time retrieval of the highest defect wave and record the maximum defect
Defect location: real-time display of defect horizontal, depth (vertical), acoustic path position
Defect quantification: real-time display of defect equivalent dB value or equivalent size
Defect qualitative: Through the echo envelope waveform, convenient manual experience judgment
Surface correction: Used for surface workpiece inspection, which can display the circumferential position of defects in real time
DAC/AVG: Curves are automatically generated, sampling points are not limited, and can be compensated and corrected. The curve floats automatically with the gain, expands automatically with the sound path, and moves automatically with the delay. AVG curves of arbitrary aperture can be displayed.
AWS D1.1: The American Welding Society standard that provides a dynamic reflector “missing grade” for various AWS weld inspection applications. It can avoid manual calculation and improve detection efficiency.
Crack height measurement: Automatic measurement and calculation of crack height using end-point diffraction wave.
Widening inside the door: enlarge the echo details for echo analysis
Continuous recording: real-time recording waveform, storage, playback
Waveform freezing: Freeze the waveform displayed on the screen for easy defect analysis
Echo coding: Display 1-9 echo display area in different colors, which is easy to judge the defect location
Peak marking: Capture and mark the peak in real time
B-type scanning: real-time scanning, cross-sectional display, can display the shape of the workpiece defect, so that the detection results are more intuitive.
Real Time Clock
Real-time inspection date, time tracking record, and record storage.
Communication interface
USB2.0 high-speed communication transmission interface, support U disk storage mode and data connection mode, convenient and quick data backup to the PC, you can also use dedicated software to upload and download data through USB.
Battery module
High capacity lithium battery module, continuous working time of more than 12 hours.
Display waveform
Waveform color, waveform fill and peak marking in gate can be set
Repeat emission frequency
The maximum repeated transmission frequency of the machine can be set to 2000Hz, and it can also be upgraded to a higher frequency according to user needs. In principle, the upper limit can be achieved according to the detection range, sound speed and transmission width.
Upgrade program
The upgrade function can be completed in just two steps, and users can upgrade the program to the latest version without causing a black screen and damage to the machine. Do not power off or remove the USB disk during the upgrade to avoid damage to the instrument.
NDT681 Plastic case ultrasonic flaw detector
3.Main technical parameters
| Technical item | Technical parameter remarks | Remarks | |
| Standard | High-performance models | ||
| Detection range | 0~15m (shear wave in steel)
Transmission 30m |
0~20m (shear wave in steel)
Transmission 40m |
(expandable) |
| Sound speed range | 100~15000m/s | 100~20000m/s | |
| Repeated transmission frequency | 20~2000Hz | (expandable) | |
| Dynamic range | ≥36dB | ||
| Vertical linear error | ≤2.5% | ||
| Horizontal linear error | ≤0.2% | ||
| Resolution | >40dB(5P14 steel longitudinal wave) | ||
| Sensitivity margin | >65dB(2.5MHz with 20 straight probe, measuring depth 200mm with 2 flat bottom holes, wave height 50%) | ||
| Electrical noise level | ≤10% | ||
| Number of flaw detection channels | 500 | ||
| Number of defect reports | 1000 | ||
| Inspection Report Type | PDF file Inspection report | ||
| Display and resolution | IPS high brightness wide viewing Angle display;
Refresh speed 60Hz; Resolution 640X480 |
||
| Digital suppression | 0~80%, does not affect linearity and gain | ||
| Probe type | Straight probe, oblique probe, twin probe, penetrating probe | ||
| Gate | in wave gate, lost wave gate; Single gate reading, double gate reading | ||
| Trigger mode | Peak trigger, edge trigger | ||
| Alarm | incoming wave, lost wave, buzzer alarm, LED light alarm | ||
| Power source | DC (DC) 9V; The lithium battery works continuously for more than 12 hours | ||
| Auxiliary functions | Screenshot, video and playback, B-scan, automatic DAC, AVG curve generation, AWS Intelligent acceptance rating, data analysis software | ||
| Advanced function | Weld diagram;
Probe frequency detection |
||
| Number of video files | Up to 10 video files can be stored inside. Each video file lasts up to 5 minutes. 30 frames per second real-time waveform, external U disk video unlimited number and duration of recording | ||
| Dimensions | 260×180×60(mm) | ||
| Weight | 1.14kg | ||
| Ambient temperature | (-10~50)℃ | ||
| Relative humidity | (20~95)%RH | ||
| Protection level | IP65 | IP67 | |
| Pulse amplitude | 100V, 200V, 250V, 300V, 350V, 400V, 450V, 500V classification selection, suitable for a wide range of probes | ||
| The pulse width | Continuously adjusted in the (0.01 to 0.50)µs range to match the different frequencies of the probe | ||
| The probe damping | 50Ω, 150Ω, 300Ω, 400Ω can be selected to meet the sensitivity and resolution of different working requirements | ||
| Sampling speed | 12-bit AD sampling, speed 320M, high fidelity waveform | ||
| Detection mode | positive half wave; Negative half wave; Full wave; Radio-frequency wave | ||
| Filter frequency band | 0.1-20MHz, narrow band and broadband | ||
| Maximum gain | 110dB(0.1dB; 1dB; 2dB; 6dB step optional) | ||
| Communication interface | USB/RS232 | ||
| Probe interface | BNC/LEMO | ||
| Note: The above indicators are measured when the probe frequency is 2.5MHz and the detection mode is full wave. | |||
NDT681 Plastic case ultrasonic flaw detector
4.Standard configuration
| Number | Name | Quantity | Unit | Remarks |
| 1 | Main machine of flaw detector | 1 | set | |
| 2 | Straight probe | 1 | ||
| 3 | Angle probe | 1 | ||
| 4 | Power adapter | 1 | ||
| 5 | BNC probe connection cable | 1 | ||
| 6 | Usb flash drive memory | 1 | ||
| 7 | wristband | 1 | ||
| 8 | Coupling agent | 1 | bottle | |
| 9 | Instruction manual | 1 | ||
| 10 | Certificate of conformity | 1 | ||
| 11 | Warranty card | 1 | piece | |
| 12 | Test report | 1 | piece | |
| 13 | Instrument box | 1 |
