I.Overview
This instrument is a collection of portable and fully-digital ultrasonic flaw detector. The two models in the series–high version and low version–all have the capacity to detect, localize and evaluate various defects in metals with rapidity and precision. Particularly, it is highly effective in the detection of welds, cracks, inclusions, and metal porosity in a non-destructive manner that is suitable for laboratory or project site environments. The detector’s wide variety of applications can be highly useful for defect detection and quality control in manufacturing, steel metallurgy, metal processing and chemical engineering, among other industries. Moreover, it can also be widely used for in-service safety inspections and live assessments in aircraft, railway and traffic industries, as well as boiler and pressure vessels.
II.Attention
◇The instrument should only be used in industry, and not in medical testing.
◇In order to ensure safe operation of the instrument, the operator should have comprehensive knowledge of non-destructive testing.
◇The detector must only be used in appropriate environments – especially, the detector cannot be used in environments with a strong magnetic field or strong corrosion.
◇To avoid unnecessary loss and to ensure user safety, please operate the detector according to the manual.
◇Please contact dealers when the detector exhibits a fault – please refrain from self-disassembly or reparation.
III.Preface
Thank you very much for using our Digital Ultrasonic Flaw Detector. The instrument adopts state-of-the-art integrated circuit technology and a new TFT color display, each of which meets or exceeds internationally accepted performance targets. The instrument is programmed with a user-oriented interface that is straight-forward and intuitive to use. In order to correctly operate the ultrasonic flaw detector, please read this operating manual and other supplied information carefully before initial use.
It has two models – high version and low version – that correspond to low and high configurations. Users can refer to the operating manual according to their specific model.
Prior to first-use, please check carefully whether the instruments and accessories are consistent with the packing list – if not, please contact us. Please also carefully read the operating manual to ensure that you understand the rights and services you may be entitled to.
1.1Features
The Digital Ultrasonic Flaw Detector offers high speed, high accuracy, high efficiency, high reliability, and real-time operation in a digital interface. The detector contains the most up-to-date technology and has the following features:
◇A user-oriented interface with a multi-function shortcuts, menu operation and a rotating navigation wheel.
◇A 5.7-inch TFT color screen with adjustable color and bright settings.
◇A small and light portable battery that can be charged anytime for use in any environment.
◇Multi-channel testing with the option to save channels.
◇Large capacity for waveform storage and the ability to load waveforms.
◇The capacity to record and store high-speed videos.
◇Automatic readings capture with moving gates.
◇Adjust the gain conveniently using gain subtraction shortcuts (users can also access the preset parameters with one key).
◇Automatic calibration for various probe parameters.
◇A no order limit for point in DAC and AVG curves.
◇Fully adjustable pulse transmission (amplitudes and widths) with built-in support to block pulses and transmit sharp pulses.
◇Impedance matching for different requirements of sensitivity and resolution.
◇Four work modes: normal probe, angle probe, dual-crystal straight probe and transmission probe.
◇Receive and amplify signals:
nReal-time sample: high speed ADC, wave detail fully displayed.
nRectification: full, positive, negative, reflective.
nGate: dual-gate, support time gate and sound path gate, echo capture automatically.
nGain: Multi-grade adjustable, basic gain, scan gain, compensation gain, support locked gain and auto gain;
◇Alarm function: beep alarm and flash alarm.
◇Digital display zoom: change the font size in parameters menu.
◇Real-time stopwatch function: track and save time records.
◇USB functionality: data transfer via high-speed USB.
◇Power saving: screen brightness will automatically decrease or shut off to save power and extend product life.
◇Detection features:
nPeak-value recording: record and save the maximum values of defect recording in real-time.
nEcho envelope: receive detailed information on peak trace depiction for defect echo.
nCrack height measurement: automatically measure and calculate crack height (only high version).
nB-SCAN: real-time scanning of cross-sectional shape to directly display the shape of the workpiece. Includes thick B-SCAN (both models) and color B-SCAN (only high version).
nAperture: auto-calculate aperture flaws (i.e. Ф values) (only high version)
nAWS function: directly display defect classifications.
nWeld diagrammatic presentation: directly display the sectional distribution of weld defects during weld testing (only high version).
nAutomatic DAC and AVG generation: automatically find the highest wave of the defect and automatically calculate equivalent Ф by normal/angle probe.
nVideo function: record, save and play waveform in real-time.
nDefect location: values for horizontal value (L), depth (H) and sound path (S).
nDefect quantitative analysis: flexible display according to an adjustable reference.
nDefect qualitative analysis: real-time estimates and judgements of envelope waveform.
Curved surface correction: automatic correction and conversion of curved surfaces (only high version)
Broadening function: user-adjustable ability to broaden the waveform selection.
Echo code: different echoes distinguished by different colors (only high version)
1.2Specifications
The specifications of the instruments are shown in the Table 1.
Table 1: Technical specifications of Digital Ultrasonic Flaw Detector
Low version High version
Testing range 0～9999mm 0～25000 mm
Velocity 1000～9999 m/s 200～20000 m/s
Channel Storage 10 100
Waveform Storage 100 1000
Record Storage 5min×10 5min×20
Gain 0 dB～110 dB
Display Delay -15 µs～+3400 µs
Probe Delay 0 µs～1000 µs
Frequency 0.2～15MHz 0.2～20MHz
Noise Level ≤10％
Probe Damping 50 Ω, 75 Ω , 150 Ω , 500 Ω
Probe repeating
Frequency Automatic low, automatic medium, automatic high, 5～1000 Hz
Sensitivity ＞62 dB（depth: 200 mm, flat-bottom hole Ф2）
Resolution ＞40 dB
Linearity Reject 0～80%（digital reject）
Vertical Linearity Error ≤3%
Horizontal Linearity Error ≤0.1%
DynamicRange ≥32 dB
Pulse Energy Fixed Multi-grades adjustable( 100V, 250V,
350V, 450V)
Pulse Width 50～1000 ns Auto match (50～1000 ns); sharp pulse
Ram 1GB
Environment Temperature -10oC～﹢50 oC
Environment Humidity 20%～95％ RH
Working Hours ≥ 20 hours
Size 220×175×59（mm）
Weight 1.3 kg including battery