Huazheng HZ-ATU601 User manual

HZ-ATU601
Digital Ultrasonic Flaw Detector
Huazheng Electric Manufacturing (Baoding) Co., Ltd

Dear use r:
Thank you for choosing HZ-ATU 601 Digital Ultrasonic Flaw Det ec tor.
We hop e that thi s instrum en t can make your work eas ier and more
en jo ya bl e, so that yo u can get the feeling of office aut omat ion in the test
an d analysis work.
Before us ing the instrumen t, please read this manual, and operate an d
maintain the instrume nt according to the ma nu al to prolong its service li fe.
"Just a light press, the test will be completed automat ic al ly" is the
op er ating cha racteristics of this instrument.
If you are sati sfied with this instrument, please tell your colleagues;
if yo u are no t satis fied with this instrument, ple as e call [phone] to
tell you to ser ve you at all ti mes- Baoding Huazheng Electric Manufactu ring
Co. , Ltd., ou r co mpany will def in itely make you satisfied !

Contents
I.Overview..........................................................................................................................................1
II.Attention..........................................................................................................................................1
III.Preface...........................................................................................................................................1
IV.Instrument Introduction............................................................................................................... 6
V.System Parameter Settings...................................................................................................... 16
VI.Inspection Operation Example................................................................................................37
VII.Assistant Function....................................................................................................................55
VIII.Testing Accuracy and Defect Evaluation.............................................................................59
IX.Fault Diagnosis and Elimination..............................................................................................61

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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

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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:

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Real-time sample: high speed ADC, wave detail fully displayed.
Rectification: full, positive, negative, reflective.
Gate: dual-gate, support time gate and sound path gate, echo capture automatically.
Gain: 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:
Peak-value recording: record and save the maximum values of defect recording in
real-time.
Echo envelope: receive detailed information on peak trace depiction for defect echo.
Crack height measurement: automatically measure and calculate crack height (only
high version).
B-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).
Aperture: auto-calculate aperture flaws (i.e. Ф values) (only high version)
AWS function: directly display defect classifications.
Weld diagrammatic presentation: directly display the sectional distribution of weld
defects during weld testing (only high version).
Automatic DAC and AVG generation: automatically find the highest wave of the defect
and automatically calculate equivalent Ф by normal/angle probe.
Video function: record, save and play waveform in real-time.
Defect location: values for horizontal value (L), depth (H) and sound path (S).
Defect quantitative analysis: flexible display according to an adjustable reference.

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Defect 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

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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%
Dynamic
Range ≥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
Size220×175×59（mm）
Weight 1.3 kg including battery
1.3Required knowledge prior to first use
◇Relevant training of operator
◇NDT field knowledge
◇Appropriate selection of test equipment based on actual conditions

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1.4Caution
◇Refrain from powering on and off repeatedly – please wait for 5s before powering on
again.
◇Avoid strong vibrations, impacts or strong magnetic fields.
◇Do not leave the detector in high temperature, high humidity or corrosive gas
environments.
◇Do not overexert operation of detector keys, and minimise operation of keys with oily or
muddy hands.
◇Contact dealers if problems in the detector arise.
1.5Proper Maintenance
◇After using the detector, clean the detector surface and put it in a dry environment.
◇The probe cable should not be loaded with heavy loads. Always hold the head of the
plug when inserting or removing the cable.
◇Charge and discharge the battery for at least one or two hours every month to ensure
optimal battery function.
◇Keep the device away from damp environments.
◇When moving with the detector, avoid falling, strong vibrations, rain or snow.
◇Do not wipe the surface of the detector with corrosive solvents.
IV.Instrument Introduction
2.1Charge Description
2.1.1Power supply methods
The detector has two power supply methods: an external power charger and a specialized
7200mAh lithium–ion battery pack.
External power supply charger:
Input voltage: alternating current (AC), 100-240V, 50Hz; Output voltage: 8.4V.
Power supply methods:
When the battery is not attached, insert the mains plug of the external power charger into
the mains power socket. The indicator lamp of the power supply charger will turn on,

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indicating that the charger is working properly. When the DC charger is then plugged into
the detector, the power indicator lamp will turn red and the detector can be used.
Note: Please use a stable and reliable AC power supply between 100-240V at 50Hz to
avoid damaging to the charger, lithium-ion battery or detector. Also, when removing the
charger, first unplug the charger from the main power socket first, and then disconnect the
charger from the detector.
Battery pack: The charging socket of the battery pack can be found on the top of the
detector (the battery also has its own in-built charging socket for separate charging when
disconnected to the detector). When the battery level is low, please charge or change the
battery immediately, or connect the external power supply charger to the detector. When
changing the battery, please ensure that the detector is switched off.
2.1.2Charging methods
The battery can be charged whilst it is attached to the detector or when separated from
the device. This allows users to simultaneously use and charge the device.
Charging the battery when the detector is in use:
1.Open the waterproof stopper on the top of the detector;
2.Plug the external power charger into the mains power socket, then plug the other end
into the charging socket on the top of the detector. The detector will start to charge the
battery automatically (indicator lamp turns red while charging);
3.After battery is fully charged, the detector stops charging automatically and the indicator
lamp will turn green.
Charging the battery when the detector is not in use:
1.Turn off the detector;
2.Remove the battery from the battery compartment;
3.Plug the mains power plug of the external power charger into the mains power socket,
then plug the other end into the battery’s charging socket. The detector will start to charge
the battery automatically (indicator lamp turns red while charging);
4.After the battery is fully charged, the detector stops charging automatically and the
indicator lamp will turn green.
Notes for charging:

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◇Please use the provided charger when charging the battery to avoid damage to the
battery (note that a damaged battery from inappropriate charging is not covered by our
warranty).
◇All lithium-ion batteries self-discharge over time. To preserve the detector’s inner
components and battery life, turn on and recharge the detector for one to two hours at
least once a month.
◇All batteries see a reduction in capacity over-time. If you find that the battery no longer
meets your requirements after extensive charging and discharging, please replace it.
◇The battery should not be stored or charged in high temperature or humid environments.
In addition, always ensure that the positive and negative poles of the battery are kept
away from metal.
◇Lithium batteries contain potentially hazardous components contained within an
isolated circuit. To avoid severe consequences, do not disassemble or modify the battery,
exert excessive pressure on the battery, or short-circuit the battery.
◇Be careful when transporting and using the battery. Keep the battery away from
excessive impacts, water/rain, and corrosive materials etc.
◇Please immediately turn off the power and contact Soundwel when the battery exhibits
abnormal behavior (e.g. overheating) during charging.
2.2Detector Unit
The schematic of Digital Ultrasonic Flaw Detector is shown in the Fig.2-1.

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Fig.2-1 Schematic of the unit
(1) Keypad (2) Hand-belt (3) TFT screen (4) Power indicator (5) Alarm indicator
(6) Digital rotating wheel (7) Supporter (8) USB port (9) Reset and power-off port
(10) Charging port (11) Receiving port (12) Receiving/transmitting port (13)
Protective shell
2.2.1Indicator
Alarm indicator: the alarm indicator lamp flashes to give a warning that the echo peak
value is above or below the gate.
Power indicator: the power indicator lamp will be on when the detector is powered on, and
it will be off when the detector is powered off. If the battery level is low, the indicator lamp
will flash and turn red.
Charging indicator (on the charger): when the detector is charging, the indicator lamp on
the charger will turn red. When charging is completed, the indicator lamp will turn green.
2.2.2Connecting the probe
Before use, ensure that the appropriate probe and cable are connected to the detector
(the cable should be a coaxial-cable with 75Ω).
There are two ports on the top of detector to plug the probe into. The probe cable can be
plugged into either port when using a single-crystal probe (such as normal or angle
probes). When using dual-crystal probes, ensure that the transmitting probe cable is

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connected to the transmitting port, and the receiving probe cable is connected to the
receiving port using dual-crystal probe.
Note: The quality of the probe cable may affect testing outcomes. Additionally, If the
transmitting probe cable and receiving probe cable are misconnected while using a
dual-crystal probe, there may be echo loss or waveform disorder.
2.3Display
The unit display includes the Echo GUI and Setting GUI. In the Echo GUI, the echo
display area, main menu, sub-menu and basic info display area (as shown in Fig.2-2) are
seen. The Setting GUI is shown in Fig.2-3 and is used to alter device parameters.
Main interface

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………………………………………………
0.0mm
………………………………………………
15.0mm
……………………………………………… 25
……………………………………………… 34.1dB
………………………………………………
1 . 0 dB
UNLO
CK
©
50m
m
5920
…………………………………………
……
…………………………………………
……
…………………………………………
……
…………………………………………
……
…………………………………………
……
…………………………………………
……
EXIT
RAN
GE
VELO
CITY
DDE
LAY
PARAMETER
PARA-LOCK ……………………………………………
…
Fig.2-2 Main interface and status bar of the Echo GUI
Parameters Interface
Fig.2-3 Parameters interface of the Settings GUI
To alter parameters, first ensure that PARA-LOCK is unlocked. PARA-LOCK can be
unlocked by using [↓] or [↑] to select “PARA-LOCK”, pressing ENTER, and then rolling the
rotating wheel until unlock is displayed. All other parameter interface settings can then be

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altered using the same method.
2.4Keypad
The keypad is designed with two modes of operation: key input or the digital rotating
wheel, as shown in Fig.2-4. All control commands can be completed with keys or the
rotating wheel.
Key input operation:
The keys of the keypad can be grouped into four regions.
◇The first region contains the detector’s primary keys: BASE, CAL(calibration), CURVE,
FUNC(function), SYSTEM.
◇The second region keys (F1, F2, F3, F4, F5) allow the user to select the respective
option seen above the keys in the display.
◇The third region contains the basic operation buttons ([↑],[↓], ENTER) which can be
used to select different parameters in the sub-menu of the Echo GUI or in the Settings
GUI.
◇The fourth region includes function and shortcut keys. In-depth description of these
features can be found in the following sections of the manual: 3 System Parameter Setting,
4 Basic Operation, 5 Data Storage And Communication. The following is a brief overview

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of the shortcut keys to help the user complete the testing process quickly:
Freeze: Press FREEZE to immediately freeze the displayed waveform and data seen
on the screen. To unfreeze waveform and data, simply press FREEZE again. This key
also works to freeze echoes when applicable. Note that the displayed waveform and data
must be unfrozen before loading saved waveforms.
dB+, dB-: Gain plus and gain minus shortcut keys to adjust the wave peak in the gate.
Auto Gain: The wave in the gate will automatically be adjusted to the default height.
Rotating wheel operation:
The rotating wheel can be rotated left/right and clicked. Left rotation will decrease the
value, right rotation will increase the value, and clicking will adjust the increment size
when decreasing or increasing value. Three increment sizes have been programmed:
small-increments, medium-increments and large-increments. The size of the increment
is displayed by a symbol in front of the value (e.g. a 3-line symbol, is displayed when the
increment size is large, and a 1-line symbol is displayed when the increment size is small).
2.5Power
Turning detector ON: Press and hold the key for 2 seconds to switch the detector on.
Turning detector OFF: Press and hold the key for 2 seconds to turn off the detector. If
that fails, press the key five times consecutively to turn off the detector.
Notes:
◇Turn off by software: If the detector cannot be manually turned off using , the detector
can also be switched off from the software. Press SYSTEM, select “Setup”, then use [↑] or
[↓] to select “SHUTDOWN”, and press ENTER to turn off the detector.
◇Auto off: An warning will flash on the screen when the battery voltage is too low, after
which the detector will automatically save data and turn off after three minutes.
◇Forced turn off: Press the reset button found at the top of the detector to force the
detector to turn off. Note that this method will restore all settings when the detector is

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turned on again.
2.6 Menu Structure
BASE
MAIN
MENU
RANGE
GATE
GAIN
READING
ECHO
SUB-MENU
RANGE
SELECT
dB-BASIC
GATEMODE
RECTIFY
VELOCITY
START
dB-STEP
TRIGGER
REJECT
DDELAY
WIDTH
dB-SCAN
MEMMODE
FILL
PDELAY
THRESH
dB-COMP
EXPAND
COLORLEG
CAL
MAIN
MENU
PROBE
CALI
ANGLE
PULSER
SETUP
SUB-MENU
PROBE
AUTO
AUTO
VOLTAGE
THICK
FREQ
MANUAL
MANUAL
PULSE
AUTO-80
FILTER
XVALUE
ANGLE
PRF
RSV
PSIZE
PDEALY
KVALUE
DAMP
RSV
CURVE
MAIN
MENU
DAC
EDIT
OFFSET
SETUP
DISPLAY
SUB-MENU
DRAW
EDIT
DAC-RL
STANDARD
DISPLAY
RANGE
RANGE
DAC-SL
EQUREF
TYPE
POINT
POINT
DAC-EL
ALARMREF
FITTING
GSTART
GSTART
ALM REF
RSV
REMOVE
MAIN
AVG
EDIT
OFFSET
SETUP
DISPLAY

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MENU
SUB-MENU
DRAW
EDIT
H-AVG
REF
DISPLAY
RANGE
RANGE
M-AVG
REF-SIZE
TYPE
POINT
POINT
L-AVG
PSIZE
FITTING
GSTART
GSTART
ALM-BASE
PFREQ
REMOVE
FUNC
MAIN
MENU
SCAN
WELD
DIAMETER
CRACK
SURFACE
SUB-MENU
BSCAN
WELD
DIAMETER
CRACK
SURFACE
DIR
SETUP
GSTART
EPA
IN-D
SPPED
TOWELD
PSIZE
EPB
OUT-D
ASCAN
RSV
PFREQ
GSTART
RSV
MAIN
MENU
AWS
SUB-MENU
AWS
AINDICAT
BREF
GSTART
SYSTEM
MAIN
MENU
DISPLAY
SCALES
ALARM
SETUP
INFO
SUB-MENU
LANGUAGE
UNITS
KEY
LPM
DATE
BRIGHT
HSCALE
BEEP
STANDBY
TIME
THEME
GRID
LED
SHUT
FIRMWARE
RSV
RSV
TYPE
RSV
SOFTWARE
MAIN
CHANNEL
WAVEFORM
VIDEO
MGMT
RSV

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MENU
SUB-MENU
CHANNEL
WAVEFORM
VIDEO
RMCHAN
SAVE
SAVE
RECORD
REWAVE
SAVE AS
LOAD
PLAY
RMVIDEO
REMOVE
REMOVE
REMOVE
FACTORY
V.System Parameter Settings
3.1Language
The detector supports both Chinese and English (English is default in this version). To
switch, operate as follows:
1.Press System to enter the system function menu and press F1 to select the “DISPLAY”
main-menu;
2.Press [↑] or [↓] to select the LANGUAGE sub-menu and then roll the rotating wheel to
switch to the desired language.
3.2 Brightness
To adjust the screen brightness, operate as follows:
1.Press SYSTEM to enter the system function menu and press F1 to select the DISPLAY
tab;
Press [↑] or [↓] to select the BRIGHT sub-menu and then roll the rotating wheel to adjust
the brightness (ranges from 10%-100%).

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3.3Color Theme
The color theme of the GUI can be set to the operator’s preference. To adjust the color
theme, operate as follows:
1.Press SYSTEM to enter the system function menu and press F1 to select the
“DISPLAY” main-menu;
2.Press [↑] or [↓] to select the THEME sub-menu and then roll the rotating wheel to
change the background color (16 kinds of color themes are available).
3.4Scales
Scales can be changed according to the test conditions. This includes changing the unit
scale, horizontal scale and grid display. To adjust these factors, operate as follows:
1.Press SYSTEM to enter the system function menu and press F2 to select the “SCALES”
main-menu;