KUST Elektronik CT1010 Series User manual

CT1010 Series Operation Manual
0
KUST Elektronik GmbH
C
CT T1 10 01 10 0 S SE ER RI IE ES S
O
OP PE ER RA AT TI IO ON N M MA AN NU UA AL L
(
(V V1 1. .3 3) )
KUST Elektronik GmbH
Am Weinberg 2
D-35619 Braunfels
Germany
Tel: [phone]
Website: www.kust-elektronik.com
E-mail： [e-mail]

CT1010 Series Operation Manual
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Contents
Chapter 1 Out of Box Audit .......................................................................................................... 0
1.1 To Inspect the package ................................................................................................. 0
1.2 Power connection ......................................................................................................... 0
1.3 Fuse .............................................................................................................................. 0
1.4 Environment ................................................................................................................. 1
1.5 Use of Test Fixture ....................................................................................................... 1
1.6 Warm-up ....................................................................................................................... 1
1.7 Other features ............................................................................................................... 1
Chapter 2 Introduction .................................................................................................................. 2
2.1 Introduction to front panel ........................................................................................... 2
2.2 Introduction to rear panel ............................................................................................. 4
2.3 Basic Operation ............................................................................................................ 5
2.4 Start the instrument ...................................................................................................... 5
Chapter 3 [SYSTEM] .................................................................................................................. 7
3.1 <SYSTEM SETUP> .................................................................................................... 7
3.1.1 BRIGHTNESS ..................................................................................................... 7
3.1.2 THEME ................................................................................................................ 7
3.1.3 KEY SOUND ....................................................................................................... 8
3.1.4 LANGUAGE........................................................................................................ 8
3.1.5 PASS WORD ....................................................................................................... 8
3.1.6 FILE FORMAT .................................................................................................... 9
3.1.7 DATE ................................................................................................................... 9
3.1.8 TIME .................................................................................................................... 9
3.2 <TEST SETUP>........................................................................................................... 9
3.2.1 SYSTEM FUNC .................................................................................................. 9
3.2.2 BEEPER ............................................................................................................. 10
3.2.3 PASS BEEP ........................................................................................................ 10
3.2.4 FAIL BEEP ........................................................................................................ 11
3.2.5 BiasSource ......................................................................................................... 11
3.2.6 HANDLER MODE ............................................................................................ 12
3.2.7 TRIGGER EDGE ............................................................................................... 13
3.2.8 FILE INFO ......................................................................................................... 13
3.2.9 AU TRIG MODE ............................................................................................... 13
3.2.10 AUTO TRIG Z< ................................................................................................. 13
3.3 <INTERFACE SETUP> ............................................................................................ 14
3.3.1 BUS MODE ....................................................................................................... 14
3.3.2 BAUD RATE ..................................................................................................... 15
3.3.3 GPIB ADDR (Reserved function) ...................................................................... 16
3.4 <ABOUT SYSTEM> ................................................................................................. 16
Chapter 4 Transformer Single-machine Test .............................................................................. 18
4.1 Circuit for transformer single-machine test................................................................ 18
4.1.1 Some parameters of transformer ........................................................................ 18

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4.1.2 Transformer single test circuit and TURN test ................................................... 18
4.1.3 Transformer leakage inductance test .................................................................. 19
4.1.4 Capacitance test between windings of transformer ............................................ 19
4.2 <Transformer Measure Setup> ................................................................................... 19
4.2.1 DELAY............................................................................................................... 21
4.2.2 Bias..................................................................................................................... 21
4.2.3 MODE ................................................................................................................ 22
4.2.4 Setting TURN test conditions............................................................................. 22
4.2.5 Setting Lx test conditions ................................................................................... 23
4.2.6 Setting DCR test conditions ............................................................................... 23
4.2.7 Test frequency, voltage and switch ..................................................................... 23
4.3 <TRANS LIMIT SETUP> ......................................................................................... 24
4.3.1 LMT MODE ....................................................................................................... 24
4.3.2 Parameter column ............................................................................................... 24
4.4 <TRANS MEAS DISP> ............................................................................................ 25
4.5 <Transformer Judge Display> .................................................................................... 25
4.5.1 Save transformer single-group test result by U disk ..................... 26
4.6 <Files List> ............................................................................................................ 26
4.6.1 Setup file for single-group component (*.STA) ................................................. 27
4.6.2 U-disk manage performance .............................................................................. 27
4.6.3 Operation steps for file management ................................................................. 28
Chapter 5 Transformer Auto Scanning Test ................................................................................ 30
5.1 Introduction to scan test function ............................................................................... 30
5.2 Install and connect the scanning test system .............................................................. 30
5.3 Upper panel of scanning box ...................................................................................... 31
5.4 Lower panel of scanning box ..................................................................................... 33
5.5 HANDLER interface .................................................................................................. 33
5.5.1 Timing diagram of HANDLER signal...................................................... 33
5.5.2 Distribution and connection diagram for HANDLER ....................... 33
5.6 Example of transformer .............................................................................................. 34
5.7 <Transformer ID> ...................................................................................................... 34
5.7.1 CLEAR RAM .................................................................................................... 35
5.7.2 Transformer ID ............................................................................................. 35
5.7.3 Primary ............................................................................................................ 36
5.7.4 Secondary ....................................................................................................... 36
5.7.5 Auto-test time ............................................................................................... 36
5.7.6 Scan display mode ...................................................................................... 36
5.7.7 Retest Number .............................................................................................. 37
5.7.8 DCR test delay .............................................................................................. 37
5.7.9 DCR OFF delay .............................................................................................. 37
5.7.10 Current bias delay ....................................................................................... 37
5.7.11 Ignore Standard ........................................................................................... 37
5.7.12 Trig delay ........................................................................................................ 38
5.7.13 Cylinder 24V .................................................................................................. 38

CT1010 Series Operation Manual
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5.8 Transformer Pin to Fixture page ................................................................................ 38
5.9 PIN SETUP ................................................................................................................ 39
5.10 SERIES SHORT PIN SET ......................................................................................... 41
5.11 APPEND SHORT PIN SET ....................................................................................... 42
5.12 <TRANS TEST CONDITION> ................................................................................. 42
5.12.1 Frequency, voltage, switch and scanning sequence ...................... 43
5.12.2 Setting TURN test conditions .................................................................. 43
5.12.3 Setting Lx test conditions ......................................................................... 45
5.12.4 Setting Lk test conditions ......................................................................... 48
5.12.5 Setting Cx test conditions ........................................................................ 49
5.12.6 Setting Zx conditions ................................................................................. 50
5.12.7 Setting ACR test conditions ..................................................................... 51
5.12.8 Setting DCR test conditions ..................................................................... 52
5.12.9 Setting PS test conditions ........................................................................ 53
5.12.10 Setting BL test conditions ........................................................................ 55
5.13 <TRANS SCAN TEST> ............................................................................................ 56
5.13.1 Display zone .................................................................................................. 56
5.13.2 Function keys ................................................................................................ 57
5.13.3 PRI page-turning function ........................................................................ 58
5.13.4 <Trans. List> ................................................................................................. 59
5.13.5 Operation steps for file manage ............................................................ 59
5.13.6 Transformer deviation-deduction........................................................... 61
5.13.7 Save scan test results by U disk ............................................................ 63
5.14 Statistic page of transformer scan test ........................................................................ 63
5.14.1 Reset statistic count value ....................................................................... 64
5.15 Frequently asked questions and answers in transformer scan test.............................. 64
5.15.1 High and low limits ..................................................................................... 64
5.15.2 Measurement item loss ............................................................................. 64
5.15.3 Measurement interruption ........................................................................ 64
5.15.4 Poor DCR accuracy ...................................................................................... 65
5.15.5 Poor Lk accuracy .......................................................................................... 65
5.15.6 Inaccurate TURN .......................................................................................... 65
5.15.7 Unstable TURN .............................................................................................. 65
5.15.8 Difference between the first and the second Lx .............................. 65
5.15.9 Poor stability of Cx and Zx open test data ........................................ 66
5.15.10 DCR and PS open cannot reach infinite large ................................... 66
5.16 User-made test fixture ................................................................................................ 66
5.17 Self-check function of scanner relay .......................................................................... 66
5.17.1 Operation steps for scan self-check ..................................................... 66
5.17.2 Displayed information on screen ........................................................... 67
Chapter 6 Performance and Test ................................................................................................. 68
6.1 Test function ............................................................................................................... 68
6.1.1 Parameter and symbol ............................................................................... 68
6.1.2 Mathematical operation ............................................................................. 68

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6.1.3 Equivalent mode .......................................................................................... 68
6.1.4 Trigger .............................................................................................................. 68
6.1.5 Delay time ...................................................................................................... 68
6.1.6 Connection modes of test terminals .................................................... 68
6.1.7 Test speed (Frequency>=10kHz) .......................................................... 69
6.1.8 Display digit ................................................................................................... 69
6.2 Test signal................................................................................................................... 69
6.2.1 Test signal frequency ................................................................................. 69
6.2.2 Signal mode ................................................................................................... 69
6.2.3 Test signal level ............................................................................................ 69
6.2.4 Output impedance ....................................................................................... 69
6.2.5 Monitor for test signal level ..................................................................... 70
6.2.6 Maximum measurement display range ............................................... 70
6.2.7 DC resistance test voltage ....................................................................... 70
6.2.8 Internal DC voltage bias ........................................................................... 70
6.3 Measurement accuracy ............................................................................................... 70
6.3.1 Accuracies of │Z│,│Y│, L, C, R, X, G, B ............................................. 70
6.3.2 Accuracy of D ................................................................................................ 71
6.3.3 Accuracy of Q ................................................................................................ 71
6.3.4 Accuracy of θ ................................................................................................. 71
6.3.5 Accuracy of G ................................................................................................ 71
6.3.6 Accuracy of Rp .............................................................................................. 72
6.3.7 The accuracy of Rs ...................................................................................... 72
6.3.8 Accuracy factor ............................................................................................. 72
6.3.9 Accuracy of DCR ........................................................................................... 75
6.3.10 Accuracy of leakage inductance Lk ....................................................... 75
6.3.11 Accuracy of the rate of Turns to Ratio ................................................. 75
6.4 Safety requirement ..................................................................................................... 75
6.4.1 Insulation resistance .................................................................................. 75
6.4.2 Insulation intensity ..................................................................................... 75
6.4.3 Leakage current ........................................................................................... 76
6.5 Electromagnetic compatibility ................................................................................... 76
6.6 Performance test ......................................................................................................... 76
6.6.1 Working condition ........................................................................................ 76
6.6.2 The used instruments and devices ....................................................... 76
6.6.3 Function check .............................................................................................. 77
6.6.4 Test signal level ............................................................................................ 77
6.6.5 Frequency ....................................................................................................... 77
6.6.6 Measurement accuracy .............................................................................. 77
6.6.7 Accuracy of C and D ................................................................................... 77
6.6.8 Accuracy of L ................................................................................................. 77
6.6.9 Accuracy of Z ................................................................................................ 78
6.6.10 Accuracy of DCR ........................................................................................... 78

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Announcement
The description of the manual may not cover all contents of the instrument, and
our company is subject to change and to improve the performance, function,
inner structure, appearance, accessory and package of the instrument without
notice. If there is puzzle caused by inconsistency of manual and instrument, then
you can contact with our company by the address on the cover.

CT1010 Series Operation Manual
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CT1010 Series Operation Manual Out of Box Audit
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Chapter 1 Out of Box Audit
When you receive the instrument, some inspections are necessary, and the
condition must be understood and available before installing the instrument.
1.1 To Inspect the package
Inspect the shipping container for damage after unpacking it. It is not
recommended to power on the instrument in the case of a damaged container.
If the contents in the container do not conform to the packing list, notify us or
your dealer.
1.2 Power connection
1) Power-supplying voltage range: 100~120Vac or 198~242Vac. Being related
with the power setup on the rear panel.
2) Power-supplying frequency range: 47~63Hz.
3) Power-supplying power range: less than 80VA.
4) Power supplying input phase line L, zero line N, ground lead E should be as
same as the power plug of the instrument.
5) After careful design, the instrument can reduce the clutter jamming caused
by AC power terminal input, however, it should be used under the
environment with low-noise. Please install power filter if being unavoidable.
———————————————————————————————————————
Warning: In order to prevent user and instrument from being hurt by
leakage, it is necessary for user to guarantee the ground line of supply
power being reliably grounded.
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1.3 Fuse
The instrument has installed fuse, so operators should use the installed fuse of
our company.
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Warning: Be sure that the location of fuse is consistent with
power-supplying voltage range before charging.
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CT1010 Series Operation Manual Out of Box Audit
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1.4 Environment
1) Please do not operate the instrument in the place that is vibrative, dusty,
under direct sunlight or where there is corrosive air.
2) The normal working temperature is 0C～40C, relative humidity ≤75%, so the
instrument should be used under above condition to guarantee the accuracy.
3) There is heat abstractor on the rear panel to avoid the inner temperature
rising. In order to keep good airiness, please don’t obstruct the left and right
airiness holes to make the instrument maintain the accuracy.
4) Although the instrument has been specially designed for reducing the noise
caused by ac power, a place with low noise is still recommended. If this
cannot be arranged, please make sure to use power filter for the instrument.
5) Please store the instrument in the place where temperature is between 5℃
and 40℃, humidity is less than 85%RH. If the instrument will not be put in
use for a time, please have it properly packed with its original box or a similar
box for storing.
6) The instrument, especially the test cable should be far from strong
electro-magnetic field, to avoid the jamming on measurement.
1.5 Use of Test Fixture
Please use the accessory test fixture or cable, the test fixture made by user or
from other company may cause the incorrect measurement result. The
test fixture or cable should be kept clean, as well as the pin of DUT, thus to
guarantee the good connection between DUT and fixture.
Connect the fixture or cable to four test terminals Hcur, Hpot, Lcur, Lpot on the
front panel. As for the DUT with shielding shell, connect shielding layer or ground
“┴”.
Note: When test fixture or cable has not being installed, the instrument will
display an unstable test result.
1.6 Warm-up
1) To guarantee the accurate measurement, the warm-up time is no less than
15min.
2) Please not turn on or off instrument frequently, in order to avoid the inner
data fluster.
1.7 Other features
1) Power: consumption power≤80VA.

CT1010 Series Operation Manual Out of Box Audit
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2) Dimension (W*H*D): 398mm*129mm*370mm
3) Weight: About 9kg.

CT1010 Series Operation Manual Chapter 2 Introduction
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Chapter 2 Introduction
In this chapter, the basic operation features of CT1010 series are described.
Please read the content carefully before using CT1010 series instruments, thus
you can learn the operation of CT1010.
2.1 Introduction to front panel
Figure 2-1 shows the front panel CT1010.
1 2 4 6 8 10 12 14
3 5 7 9 11 13
1) Buzzer window
2) LCD
800*480 colorful TFT LCD displays measurement results and conditions.
3) Brand and model
Brand and model
4) Soft keys
Six soft keys are used to select parameters. The corresponding function of
each soft key has been displayed on its left (the right part of LCD). The
function definition varies with different pages.
5) [FILE]
Press this key to enter into the file setup page.
6) PASS indicator
LED indicator shows the test result has passed.
7) [MEAS]
Press this key to enter into the display page of transformer scanning test.

CT1010 Series Operation Manual Chapter 2 Introduction
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8) [SETUP]
Press this key to enter into the setup page of transformer scanning test.
9) FAIL indicator
LED indicator shows the test result has failed.
10) [SYSTEM]
Press this key to enter into the system setup page.
11) Numerical keys
These keys are used to input data to the instrument. The key consists of
numerical keys [0] to [9], decimal point [.] and [+/-] key.
12) [ENTER]
This key is used to end the input of data, and confirm and save the data
displayed on the inputting line (the bottom line on LCD).
13) [CAL]
Execute the calibration operation. Press this key to execute OPEN/SHORT
calibration.
14) [ESC]
ESCAPE key
15) [←]
BACKSPACE key is used delete the last numeric of the input value.
16) [KEYLOCK]
Press [KEYLOCK], it will be lighted, which means the function of current panel
is locked. Press it again, it will be off, which means discharging the lock status.
If the password function is ON, it means correct password is necessary when
discharging the key-lock, or the key cannot be unlocked.
17) [DC BIAS]
[DC BIAS] is used to permit or forbid the output of 0-100mA/10V DC bias
source. Press this key, it will be lighted which means DC bias output is
permitted. Press this key once more, it will be off which means DC bias output
is prohibited. The key is useless in some pages where the DC BIAS cannot be
added.
18) [RESET]
Press this key, when transformer auto scanning is cancelled, other operation
cannot be executed on other pages.
19) [TRIGGER]
When the trigger mode is set to MAN mode, press this key to trigger the
instrument.
20) Transformer secondary test terminal (TURNS)
(+): Secondary (+) terminal
(-): Secondary (-) terminal
21) Test terminals (UNKNOWN)
4-teminal test pair are used to connect 4-terminal test fixture or cable to
measure DUT.
The 4 terminals are respectively as follows: Hcur, Hpot, Lpot and Lcur.
22) CURSOR

CT1010 Series Operation Manual Chapter 2 Introduction
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Cursor key is used to select cursor between zone and zone on LCD display
page. When cursor moves to some zone, the zone displays with reverse on
LCD.
23) Ground terminal
The ground terminal is connected with the case of instrument, which can be
used to protect or shield the ground connection.
24) [COPY]
Copy the currently displayed page to USB memory.
25) POWER
Power switch
26) USB HOST interface
Connect U flash disk so as to save or use a specified file.
2.2 Introduction to rear panel
Figure 2-2 shows the rear panel of CT1010.
Figure 2-2 Rear panel
1) FOOT. C: Used to connect footswitch.
2) RS232 interface
Series communication interface can realize the communication with PC.
3) HANDLER interface
Handler interface is used to realize the sorting output of test results.
4) IEEE-488 interface
The tester can communicate with PC through GPIB interface.
5) Fan window
Heat elimination, maintaining the normal working temperature
6) Fuse base
Being used to install power fuse, protect instrument.
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7) Power socket
Input AC power.
8) Ground terminal
The ground terminal is connected with the case of instrument, which can be
used to protect or shield the ground connection.
9) 110V/220V Switch
switch 110V/220V by changing the direction of core.
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Warning: Be sure that the direction of fuse is accordant with
power-supply voltage range before charging.
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10) SCANNER interface
Control the transformer scanning box through SCANNER interface.
11) USB DEVICE interface
The tester can communicate with PC through the USB DEVICE interface.
12) LAN interface
LAN interface is used to realize the control and the communication of network
system.
2.3 Basic Operation
Basic operation of CT1010 is as follows:
 Use menu keys ([DISP], SETUP], [SYSTEM]) and soft keys to select the
desired page.
 Use cursor keys ([←][→]) and the slide switch to move the cursor to the
desired zone. When the cursor moves to a specified zone, the zone will
become reverse expression.
 The soft key functions corresponding to the current zone of the cursor will be
displayed in the soft key zone. Users can select and use the desired key.
Numeric keys, [BACKSPACE] and [ENTER] are used to input data.
When a numeric key is pressed down, the usable unit soft key will be
displayed in the soft key zone. You can choose a unit soft key or press [ENTER]
to end data inputting. When [ENTER] is used to terminate data inputting, the
unit of data will be set to a default unit, such as Hz, V or A. For example, the
default unit for frequency is Hz.
2.4 Start the instrument
Plug in 3-line power plug.
Caution: Keep the power-supply voltage and frequency conform to above
specifications. Power input phase line L, zero line N, ground line E should be the
same as that of the instrument.

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Press the power switch at the left corner on the front panel and then a boot screen
will appear which displays our company logo, instrument model (CT1010), and
the version number of the software (Ver1.0.X).
If the password protection function is on, users are required to input the
password and then press [ENTER] to enter into the page of main menu.
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Note: The instrument has a default password 1010. In your practical use, you
can change it and set your own one. Please see <SYSTEM> section for more
information.

CT1010 Series Operation Manual Chapter 3 [System]
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Chapter 3 [SYSTEM]
3.1 <SYSTEM SETUP>
Press [System] to enter into the <SYSTEM SETUP> page, shown as below.
On this page, Basic system setup items are displayed, such as brightness, theme,
key sound, language, PASS word, file format, date, time.
3.1.1 BRIGHTNESS
The zone is used to control and display the LCD brightness of instrument.
Operation step of setting LCD brightness：
Move cursor to BRIGHTNESS. The following softkeys will be displayed.
 INCR +
The softkey is used to increase the brightness.
 DECR -
The softkey is used to decrease the brightness.
3.1.2 THEME
This zone is used to alter the display style.
Operation steps for theme
1) Move the cursor to theme, the following soft keys will be displayed.
 Royalblue

CT1010 Series Operation Manual Chapter 3 [System]
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This soft key is used to Royalblue as the theme.
 Seagreen
This soft key is used to select Seagreen as the theme.
 Steelblue
This soft key is used to select Steelblue as the theme.
3.1.3 KEY SOUND
This zone is used to turn on/off the key sound.
Operation steps for key sound
2) Move the cursor to key sound, the following soft keys will be displayed.
 ON
This soft key is used to turn on the key sound.
 OFF
This soft key is used to turn off the key sound.
3.1.4 LANGUAGE
This zone is used to control and display the current language mode of the
operating instrument.
Operation steps for setting language
3) Move the cursor to Language, the following soft keys will be displayed.
 English
This soft key is used to select English as the operation language.
 Chinese
This soft key is used to select Chinese as the operation language.
3.1.5 PASS WORD
This zone is used to display the password –protection mode.
Operation steps for setting the password
1) Move the cursor to Password, the following soft keys will be displayed.
 OFF
This soft key is used to turn off the password protection mode.
 Hold SYSTEM
This soft key is used to turn on the password protection function including file
protection and starting up password.
 Hold FILE
This soft key is used to protect user’s file.
 MODIFY
This soft key is used to modify the password. The operation steps are as
follows:
Press MODIFY to input a new password. After inputting, a prompt

CT1010 Series Operation Manual Chapter 3 [System]
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information will appear on the screen to prompt you to confirm the new
password. Input the new password again till the modification finishes.
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Note: The default password is 1010.
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3.1.6 FILE FORMAT
This zone is used to alter the display mode of the file in the file management
page.
Operation steps for file format
4) Move the cursor to FILE FORMAT, the following soft keys will be displayed.
 Trs ID
This soft key is used to select trs Id as the display mode.
 File Name
This soft key is used to select File Name as the display mode.
 File Name & Trs ID
This soft key is used to select File Name & Trs ID as the display mode.
3.1.7 DATE
When moving to the DATE zone, user should input the value directly.
3.1.8 TIME
When moving to the TIME zone, user should input the value directly.
3.2 <TEST SETUP>
Press [SYSTEM] ,and then TEST SETUP to enter into the <TEST SETUP> page
shown as below.
On this page, basic test setup items are displayed, such as system func, beeper,
pass beeper, fail beeper, biassource, handler mode, trigger edge, file info., auto
trig mode, auto trig z.
3.2.1 SYSTEM FUNC
The function of this zone is to control and display available instrument functions.
Operation steps for setting the instrument main function

CT1010 Series Operation Manual Chapter 3 [System]
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1) Move the cursor to SYSTEM FUNC, the following soft keys will be displayed.
 TRANS SINGLE
This soft key is used to select the transformer stand-alone test function.
 TRANS SCAN
This soft key is used to select the transformer scanning test function.
3.2.2 BEEPER
This zone is used to control and display the beeper source.
Operation steps for selecting beeper
1) Move the cursor to Beeper, the following soft keys will be displayed.
 MASTER
This soft key is used to select the instrument as the beeper source.
 SCANNER
This soft key is used to select the scanner as the beeper source (available
only when CT1010 connects a transformer scanning box).
 ALL
This soft key is used to select both the instrument and the scanning box as
the beeper source.
3.2.3 PASS BEEP
This zone is used to control and display the beep mode when the test result is
qualified.
Operation steps for setting PASS BEEP
1) Move the cursor to PASS BEEP, the following soft keys will be displayed.
 HIGH LONG
This soft key is used to select high and long beep.
 HIGH SHORT
This soft key is used to select high and short beep.
 LOW LONG

CT1010 Series Operation Manual Chapter 3 [System]
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This soft key is used to select low and long beep.
 TWO SHORT
This soft key is used to select two low and short beeps.
 OFF
This soft key is used to set the pass beep function OFF.
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Note: In the scanning box, the potentiometer is used to adjust the volume, so
when selecting SCANBOX as the beep source, you can only control the volume to
be long and short but not high and low.
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3.2.4 FAIL BEEP
This zone is used to control and display the beep mode as FAIL BEEP when the
test result is unqualified.
Operation steps for setting FAIL BEEP
1) Move the cursor to FAIL beep, the following soft keys will be displayed.
 HIGH LONG
This soft key is used to select high and long beep.
 HIGH SHORT
This soft key is used to select high and short beep.
 LOW LONG
This soft key is used to select low and short beep.
 TWO SHORT
This soft key is used to select two low and short beeps.
 OFF
This soft key is used to set the fail beep mode OFF.
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Note: In scanning box, the potentiometer is used to adjust the volume, so when
selecting SCANBOX as the beep source, you can only control the beep to be long
and short but not high and low.
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3.2.5 BiasSource
Bias source is used to select the DC bias power. The instrument provides 3
kinds of bias source as following：
 INT mode:
The standard DC bias source ：0V、1.5V、2V.