Dragon Wholesaling DFD30 User manual

Ultrasonic Flaw Detector DFD30
Operation Instructions
Dragon Electronics Co.
2015-05-01

Ultrasonic Flaw Detector DFD30
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Content
Chaper I Overview...........................................................................................................................................................3
1. How to Use the Operation Instructions................................................................................................................3
Chaper II Technical Parameters....................................................................................................................................4
2.1 Technical Specification......................................................................................................................................4
2.2 Standard Delivery..............................................................................................................................................4
2.3 Optioal Accessories ...........................................................................................................................................5
Chaper III Preparation...……...…………………………………………………………………………………….…...5
3.1 Overview of the Instrument .............................................................................................................................5
3.2 Operation...........................................................................................................................................................6
3.3 Display............................................................................................................................................................. 7
3.4 Overview of main menu .................................................................................................................................. 7
Chaper IV Shortcut operation of main unit...……...…………………………………………………………………....8
4.1 Calibration of straight probe ............................................................................................................................8
4.2 Calibration of angle beam probe........................................................................................................................9
Chaper V Parameter setting........................................................................................................................................... 9
5.1 Setting of BASE ................................................................................................................................................9
5.2 Setting of a and b GATE..................................................................................................................................11
5.3 Setting of PULS...............................................................................................................................................13
5.4 Setting of CAL.................................................................................................................................................14
5.5 Setting of DAC................................................................................................................................................15
5.6 PK MEM..........................................................................................................................................................16
5.7 TRIG................................................................................................................................................................17
5.8.WELD..............................................................................................................................................................18
5.9 SET..................................................................................................................................................................19
Chapter VI Calibration of straight and angle beam probe.............................................................................................19
6.1 Calibration of straight probe............................................................................................................................19
6.2 Calibration of angle beam probe......................................................................................................................20
Chapter VII Thickness Measurement ............................................................................................................................21
7.1 How to enter thickness measurement ..............................................................................................................21
7.2 How to back flaw detection.............................................................................................................................22
Chapter VIII Communication with PC..........................................................................................................................22
Chapter IX Maintenance................................................................................................................................................22
Appendix .......................................................................................................................................................................25
Appendix I Notice to User…………………………………………………………………………………...…...25
Appendix II List of Operations …..………………………………………………………………………………26

Ultrasonic Flaw Detector DFD30
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Chapter I Overview
This is a portable industrial non-destructive flaw detector, which can rapidly, easily and accurately inspect, locate,
evaluate and diagnose various defects (crack, inclusion and pinhole, etc.) in a workpiece without destruction. It can
be used both in a lab and field. The instrument can be widely used in any fields that need defect inspection and
quality controlling e.g. manufacturing industry, iron & steel metallurgical industry, metalworking, chemical industry,
etc., also be broadly used in the active safety inspection and service-life evaluation in such fields as aerospace,
railway transportation and boiler pressure vessels, etc. It is an essential instrument for non-destructive inspection
industry.
When the ultrasonic wave propagates in a job, one can detect the defect in it by the influence on the propagation of
ultrasonic wave based on the acoustic characteristic demonstrated by the defect in the material. Based on this
principle, by using ultrasonic wave one can measure such defects as crack, pinhole and inclusion in such media as
metal, non metal and composite, etc.
Fig. 1.1 Basic working principle for ultrasonic detection
1. How to use the operation instructions
It is necessary to read chapter 1, 2, 3 and 4 of the Instructions before operating instrument for the 1st time. The
descriptions in the chapters are necessary preparation for operating the instrument, which will describe all keys and
displays on screen, and explain the operation principle.
By following the directions, you can avoid error or failure due to operation mistake and can have a clear concept
about all functions of the instrument.

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Chapter II Technical Parameters
2.1 Technial Specifications
Frequency Range
0.4-10MHz
Gain Range
0dB ~110 dB
D-Delay
-20～+3400s
P-Delay
0µs～99.99µs
Measurement Range
Scan: 0 mm ~6000.0 mm
Thickness: 5.0 mm ~1000.0 mm
Dynamic Range
＞32dB
Vertical linear error
＜3.0%
Horizontal linear error
＜0.1%
Sensitivity leavigns
＞58dB
Reject
0%～90%
Rectification
Positive half wave, negative wave, full wave and RF
Test Mode
Pulse-echo, dual, through transmission
Power Supply
Li battery
Charging Time
4-5 hours
Continuous Work
More than 8 hours
Weight
0.42Kg
Overall Dimension
141×87×40mm
2.2 Standard Delivery
Item
Quantity
Main unit
1
2.5A/4.2V power adaptor
1
probe connecting cable
1
Straight probe
2.5MHz Φ20mm (One)
Angle probe
4MHz 8×9 60°(One)
Software and cable
1
Neck and Wrist strap
1
Instruction manual
1
Calibration certificate
1

Ultrasonic Flaw Detector DFD30
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Item
Quantity
Carrying case
1
2.3 Optional Accessory
Item
Different straight and angle beam
Different cables
Different test blocks
Chapter III Preparation
3.1 Overview of Instrument
Direction：
up,down,left and
right.
Down straight:
Confirm and
fine adjustment.
Frozen
Data Plus
Data Minus
COPY

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3.2 Operation
3.2.1 Preparation
a. Connect to probes and insert into correct socket. It is mention in 3.1.4.
b. Press power key to turn on the main unit.
c. It carries out self-check. After self-check, it automatically enters into the testing statues and the setting is kept with
that you turned off last time.
d. Check voltage of the battery. If the power monitor shows that the voltage is low, please chargeASAP.
3.2.2 Turn on or off
Turn on: Please make sure there is enough power of battery and press power key for about 3 seconds. Then users
would hear a long buzzer, meanwhile main unit is in working condition.
Notice:
when users turn on the instrument, the setting is the same as the one users turn off last time.
Turn off: Please make sure all data necessary is stored; then press power key for about 3 seconds again and main unit
turns off.
3.2.3 Usage of power supply
DFD30 can work with plug-in power supply (AC, DC adaptor) or battery.
The detector uses the power supply to adapter automatically when the power supply adapter is connected. In the other
hand, the detector uses the power supply to battery automatically when the power supply adapter is not connected.
3.2.4 Connect to probes
There is suitable cable to connect main unit and probe. On the top and side of main unit, there are 2 lemo00
interfaces.
Proper probe shall be connected when using DDFD30 to inspect. So long that you have a proper cable, and the
working frequency is within proper range, any probe made by our company is suitable for DDFD30.
dB+
dB-
Power
Transducer
interface
Transducer
interface
USB data transfer

Ultrasonic Flaw Detector DFD30
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The probe shall be connected to the socket at side of the instrumentl Both connector sockets have different function,
the socket on the top that sends the echo, the bottom, receiving the echo. Under single probe mode, the socket that
sends echo can be used only. When connecting with dual, TR or two probes (one for sending, the other for receiving),
please make sure to the right socket; otherwise, it may result in loss or disorder echo waveform.
Notice:
1. Bad quality of cables and probes has great impact on the test results. Please be sure good condition of cable and
probe is used.
2. When using dual probe, please pay attention to the connecting order of probe; otherwise lead to echo power
consumption and not right echo display.
3.3 Dispaly
In detail
3.4 Overall of main menu
Main functions of DFD30 are included in functional groups and several special functions.
The functional groups include BASE, P/R, GATE, CHAN, AGLEY, GAIN DAC1, DAC2, AVG1, AVG1,BSCAN,
SCR, MEM, CFG, ADV they will be introduced in the following table.
Gain value
Gate A is on
Gain value
Under setting
Need to be set
Thickness
Power
indication

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No.
group
Functions
Description
1
BASE
RANGE, db-STEP, MTLVEL, D-DELAY , P-ZERO
Basic adjustment
items necessary for
the display range
2
a GATE
a START, a WIDTH, a THRESH, a LOGIC, E to E
Relative items for
gate configuration
3
bGATE
b START, b WIDTH, b THRESH, b LOGIC, b GATE
Relative items for
gate configuration
4
PULS
PROBE TYPE, REJECT, PRF, FINE G, T-SCAN
Sending and
receiving the
adjustment items
needed
5
CAL
MEAS, S-REF1,a START, S-REF2, b START
Basic adjustment
items necessary for
the display range
6
DAC
DAC3, DGS, AWS
Plotting DAC curve
7
PK
MEM
PK MEM, ENVLOP, SHADOW, AGC 80%
Advanced function
8
TRIG
ANGLE, X-VALUE, MTLTHK
Setting relative with
angle probe
9
WELD
WELD, W WIDTH, W DIST, W DISP
Advanced function
10
SET
HORN, BRIGHT, UNIT, DATE, TIME
Advanced function
Other special functions can be realized by Special Function (SF) keys. The functions of each SF keys are introduced
in the following table.
Special Functions
Description of function
Gain step
To adjust the gain step
dB+、dB-
To adjust the gain
Freeze
To freeze waveform
Memory Peaks
Capture the max value of echo on the screen
Measure display
Select the display mode of measure result on the screen
Chapter IV Shortcut operation of main unit
Here is shortcut of operation for user reference. Please check below in detail:

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4.1 Calibration of straight probe
Press power key to turn on the instrument and connect the probe with it
Under PULS menu, set probe as straight probe by pressing Data plus or minus
Under BASE menu, choose RANGE and set it as 125mm by pressing Data plus or
minus; choose MTLVEL and set it as 5920m/s by pressing Data plus or minus
Please prepare a test block model CSK-IA and put couplant on it. Meanwhile,
locate probe on the test block, press dB+ or dB- key to make the echo 80% full of
the screen
Under a GATE, mova a GATE cover the echo
Under BASE menu, choose P-ZERO, set it by pressing Data plus as the thickness
is 100mm because standard value of test block is 100mm. Rihgt now, calibration
process is completed.
4.2 Calibration of angle probe
4.2.1 P-ZERP calibration
Press power key to turn on the instrument and connect the probe with it
Under PULS menu, set probe as angle probe by pressing Data plus or minus
Under BASE menu, choose RANGE and set it as 125mm by pressing Data plus or
minus; choose MTLVEL and set it as 3240m/s by pressing Data plus or minus
Please prepare a test block model CSK-IA and put couplant on it. Meanwhile,
locate probe on the test block, press dB+ or dB- key to make the echo 80% full of
the screen
Under a GATE, mova a GATE cover the echo
Under BASE menu, choose P-ZERO, set it by pressing Data plus as the thickness
is 100mm because standard value of test block is 100mm. Rihgt now, calibration
process is completed.
4.2.2 X-VALUE calibration
When P-ZERO calibration process is completed, next we move to X-VALUE calibration.
Set probe
Set range and velocity
Locate probe on test block
A GATE covers it
P-ZERO calibration
Turn on and connect probes
Set probe
Set range and velocity
Locate probe on test block
A GATE covers it
P-ZERO calibration
Turn on and connect probes
P-ZERO calibration

Ultrasonic Flaw Detector DFD30
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Locate the probe on test block CSK-IA and make the echo of R100 as 80% the
highest peak, make the distance between edge of test block and front face of probe
as L1, X-VALUE is 100mm-L1
Under TRIG menu, choose X-VALUE by up or down key, set X-VALUE by press
Data plus or minus
Chapter V Parameter setting
5.1 Setting of BASE
In the BASE functional group, users can adjust and set the functional items relative with the display range, including
RANGE, db-STEP,MTVEL, D-DELAY and P-ZERO.
During the detection, the display range of screen is in great relation to the material of workpiece and probe’s nature.
The workpiece material will influence the transmission velocity of ultrasonic wave, and the character of probe
determines the P-DELAY.
Notice: In order to set the sound velocity of ultrasonic wave in workpiece and P-DELAY, please refer to Chapter VI
Calibration of Instrument.
UnderA-Scan mode, press left or right direction key to set a or b GATE.
5.1.1 RANGE
Press left or right key to enter into BASE SETTING, then press up or down key to choose RANGE.
Range: 0mm～6000mm/0.1＂～200＂
If RANGE is selected, there are two ways to change. They are Rough and Fine adjustment.
Under RANGE, press + or -key
Rough adjustment: 25mm, 50mm, 100mm, 125mm, 200mm, 250mm, 500mm, 1000mm, 2000mm, 4000mm,
6000mm.
Calibration of X-VALUE
Set X-VALUE
X-VALUE calibration
completionn