Sourcetronic ST2826 User manual

O
OP PE ER RA AT TI IO ON N M MA AN NU UA AL L
ST2826/A High Frequency LCR Meter
SOURCETRONIC GMBH
Email: [e-mail]
Website：http:// www.sourcetronic.com

ST2826 Operation manual Ver1.0
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CONTENT
CHAPTER 1 THE INTRODUCTION AND INSTALLATION.............................................. 1
1.1 INTRODUCTION..................................................................................................................... 1
1.2 INSPECTION .......................................................................................................................... 1
1.3 POWER CONNECTION............................................................................................................ 1
1.4 FUSE..................................................................................................................................... 2
1.5 ENVIRONMENT ..................................................................................................................... 2
1.6THE USE OF TEST FIXTURE.................................................................................................... 2
1.7 WARM UP.............................................................................................................................. 2
1.8 OTHER FEATURE................................................................................................................... 2
CHAPTER 2 PANELAND OPERATION.................................................................................... 3
2.1 FRONT PANEL ....................................................................................................................... 3
2.2REAR PANEL.......................................................................................................................... 5
2.3DEFINITION OF DISPLAYED ZONE........................................................................................... 6
2.4MAIN MENUAND CORRESPONDING DISPLAYED PAGE............................................................ 8
2.4.1 [LCRZ] ......................................................................................................................... 8
2.4.2 [SYSTEM].................................................................................................................... 8
2.5BASIC OPERATION ................................................................................................................. 8
2.6OPEN..................................................................................................................................... 8
CHAPTER 3[LCRZ]................................................................................................................... 10
3.1 <LCRZ> PAGE.................................................................................................................... 10
3.1.1Measure ........................................................................................................................11
3.1.2Range........................................................................................................................... 12
3.1.3Frequency .................................................................................................................... 13
3.1.4Test level...................................................................................................................... 13
3.1.5DC bias........................................................................................................................ 14
3.1.6Speed ........................................................................................................................... 15
3.1.7File management.......................................................................................................... 15
3.1.8Other tools ................................................................................................................... 15
3.2 <BIN NO.DISPLAY>PAGE................................................................................................... 16
3.2.1Comparator function.................................................................................................... 17
3.2.2File management.......................................................................................................... 17
3.2.3Other tools ................................................................................................................... 17
3.3 <BIN COUNT DISPLAY>PAGE.............................................................................................. 17

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3.3.1Parameter..................................................................................................................... 18
3.3.2Nominal....................................................................................................................... 18
3.3.3Bin ............................................................................................................................... 18
3.3.4High and low limit....................................................................................................... 18
3.3.5Count ........................................................................................................................... 18
3.3.6 (AUX)......................................................................................................................... 19
3.3.7(OUT) .......................................................................................................................... 19
3.3.8File management.......................................................................................................... 19
3.3.9Auxdiary tools ............................................................................................................. 19
3.4 <LIST SWEEP DISPLAY>PAGE ............................................................................................. 19
3.4.1 Sweep mode............................................................................................................. 20
3.4.2 Frequency(Hz)......................................................................................................... 21
3.4.3 Cp[F] D[ ]................................................................................................................ 21
3.4.4 CMP（compare）................................................................................................... 21
3.4.5 File management...................................................................................................... 21
3.4.6 Auxdiary tool........................................................................................................... 21
3.4.7 Trigger mode............................................................................................................ 22
3.4.8 Auto level control function...................................................................................... 23
3.4.9 Bias current isolation function................................................................................. 23
3.4.10 Average time........................................................................................................ 24
3.4.11 Level monitor function ........................................................................................ 24
3.4.12 Delay.................................................................................................................... 24
3.4.13 Signal source internal resistance.......................................................................... 25
3.4.14 Deviation test function......................................................................................... 25
3.4.15 File management.................................................................................................. 26
3.4.16 Auxdiary tools ..................................................................................................... 27
3.5 <CORRECTION>PAGE................................................................................................... 27
3.5.1 Open correction ....................................................................................................... 28
3.5.2 Short correction ....................................................................................................... 29
3.5.3 Load correction........................................................................................................ 30
3.5.4 Load correction test function................................................................................... 31
3.5.5 Cable selection......................................................................................................... 31
3.5.6 Single/multi correction selection ............................................................................. 31
3.5.7 File management...................................................................................................... 31
3.5.8 Auxdiary tool........................................................................................................... 31
3.6 <LIMIT LIST SETTING>PAGE......................................................................................... 31
3.6.1 Swop parameter....................................................................................................... 32
3.6.2 Compare function limit mode.................................................................................. 33

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3.6.3 Nomianl value setting.............................................................................................. 34
3.6.4 Compare function ON/OFF..................................................................................... 34
3.6.5 Aux bin ON/OFF..................................................................................................... 34
3.6.6 High and low limit................................................................................................... 34
3.6.7 File management...................................................................................................... 35
3.6.8 Auxdiary tool........................................................................................................... 35
3.7 <LIST SWEEP SETTING>PAGE....................................................................................... 35
3.7.1 Mode........................................................................................................................ 36
3.7.2 Optioanal item ......................................................................................................... 36
3.7.3 Sweep parameter setting.......................................................................................... 36
3.7.4 File........................................................................................................................... 36
3.8 <TRACE SWEEP SETTING>............................................................................................ 37
3.8.1 Mode........................................................................................................................ 37
3.8.2 Start.......................................................................................................................... 37
3.8.3 End........................................................................................................................... 37
3.8.4 Coordination range setting....................................................................................... 37
3.8.5 File management...................................................................................................... 37
3.9 <TRACE SWEEP DISPLAY>....................................................................................................38
3.9.1 A max and A）value ............................................................................................ 38
3.9.2 A min and a）value................................................................................................. 38
3.9.3 B max and B）value................................................................................................ 38
3.9.4 B min and b）value................................................................................................. 38
3.9.5 File management...................................................................................................... 38
3.9.6 ―Tools‖..................................................................................................................... 38
CHAPTER 4 [SYSTEM] MENUAND FILE......................................................................... 42
4.1<SYSTEM> .......................................................................................................................... 42
4.1.1LCR contrast................................................................................................................ 42
4.1.2Style............................................................................................................................. 42
4.1.3Pass beeper .................................................................................................................. 42
4.1.4Fail beeper ................................................................................................................... 43
4.1.5Language ..................................................................................................................... 43
4.1.6Password...................................................................................................................... 43
4.1.7Bus mode..................................................................................................................... 43
4.1.8Bus address.................................................................................................................. 44
4.1.9Bias source................................................................................................................... 44
4.1.10Baud rate.................................................................................................................... 44
4.1.11Time........................................................................................................................... 44
4.2<FILE MANAGEMENT>PAGE ............................................................................................... 45

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4.2.1Introduction of save/load function............................................................................... 45
4.2.2Folder /structure in U disk........................................................................................... 45
4.2.3（*.STA）................................................................................................................... 46
4.2.4 Operational step of file management....................................................................... 48
4.3 <NETWORK SETTING>PAGE............................................................................................... 48
4.3.1Network card status..................................................................................................... 49
4.3.2Host name.................................................................................................................... 49
4.3.3DHCP........................................................................................................................... 49
4.3.4Auto IP......................................................................................................................... 49
4.3.5 IPAdd......................................................................................................................... 50
4.3.6Sub net mask off code.................................................................................................. 50
4.3.7Gateway....................................................................................................................... 50
4.3.8First choice DNS, stand by DNS ................................................................................. 50
CHAPTER 5 MEASUREMENT PROCEDUREAND EXAMPLES..................................... 52
5.1CLEAR (CORRECTION OPERATION)............................................................................. 52
5.2 FREQUENCY SWEEP CLEAR................................................................................................. 52
5.2.1 Dot frequency clear (for single frequency)................................................................. 53
5.3THE RIGHT CONNECTION BETWEEN THE TEST FIXTUREAND THE DUT................................ 54
5.4ELIMINATE THE DISTURBANCE OF THE STRAY CAPACITANCE .............................................. 54
5.5INDUCTANCE TEST EXAMPLE............................................................................................... 56
5.6MULTI-FREQUENCY LIST SWEEP FOR CAPACITANCE TEST ................................................... 58
5.7OPERATION EXAMPLE FOR LOAD CORRECTION ................................................................... 60
CHAPTER 6 PERFORMANCE AND TEST.......................................................................... 62
6.1MEASUREMENT FUNCTION.................................................................................................. 62
6.1.1 Measurement parameter and sign description............................................................. 62
6.1.2 Test combination......................................................................................................... 62
6.1.3Math operation............................................................................................................. 62
6.1.4Equivalent mode.......................................................................................................... 62
6.1.5Range........................................................................................................................... 62
6.1.6Trigger ......................................................................................................................... 62
6.1.7Delay time.................................................................................................................... 63
6.1.8The unknown terminal................................................................................................. 63
6.1.9Measurement speed ..................................................................................................... 63
6.1.10Average...................................................................................................................... 63
6.1.11Display digits............................................................................................................. 63
6.2TEST SIGNAL....................................................................................................................... 63
6.2.1Test signal frequency................................................................................................... 63
6.2.2Signal mode................................................................................................................. 63

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6.2.3The test signal level..................................................................................................... 63
6.2.4Internal resistance mode .............................................................................................. 64
6.2.5Test signal level monitor.............................................................................................. 64
6.2.4The maximum range of the test and display................................................................ 64
6.2.5The test voltage for DC resistance............................................................................... 64
6.2.6 The internal DC voltage bias...................................................................................... 64
6.3TESTACCURACY ................................................................................................................. 64
6.3.1 Basic accuracy............................................................................................................ 64
6.3.2Test speed factor(C)..................................................................................................... 65
6.3.3Cable length factor....................................................................................................... 66
6.3.4 Temperature factor...................................................................................................... 66
6.4SAFETY REQUIREMENT........................................................................................................ 74
6.4.1insulation resistance..................................................................................................... 74
6.4.2insulation intension...................................................................................................... 74
6.4.3Leakage current ........................................................................................................... 74
6.5THE EMC REQUIREMENT .................................................................................................... 74
6.6PERFORMANCE TEST ........................................................................................................... 74
6.6.1Working condition....................................................................................................... 74
6.6.2The experiment instruments......................................................................................... 74
6.6.3Check the Function...................................................................................................... 75
6.6.4The test signal level..................................................................................................... 75
6.6.5 Frequency ................................................................................................................... 76
6.6.6The test accuracy......................................................................................................... 76
6.6.7The capacitance C and the loss D accuracy................................................................. 76
6.6.8The inductance L accuracy .......................................................................................... 76
6.6.9The resistance Z accuracy............................................................................................ 76
6.6.10The DCR accuracy..................................................................................................... 77
CHAPTER 7 REMOTE CONTROL....................................................................................... 78
7.1ST2826 RS232C................................................................................................................. 78
7.2ST2826GPIB...................................................................................................................... 80
7.2.1GPIB GPIB interface function..................................................................................... 82
7.2.2GPIB address............................................................................................................... 83
7.2.3 GPIB Bus Fucntion..................................................................................................... 83
7.2.4（SCPI）..................................................................................................................... 83
7.3 LANREMOTE CONTROL SYSTEM........................................................................................ 84
7.3.1 visit ST2826 by browser............................................................................................. 85
7.3.2 Visit ST2826 by labview............................................................................................. 85
7.4USB REMOTE CONTROL SYSTEM ........................................................................................ 85

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7.4.1System configuration................................................................................................... 85
7.4.2Install drive.................................................................................................................. 85
7.5USBCDCVIRTUAL PORT..................................................................................................... 86
7.5.1 system configuration................................................................................................... 86
7.5.2 Install drive................................................................................................................. 86
CHAPTER 8 ST2826 COMMANDS...................................................................................... 87
8.1SUBSYSTEM COMMANDS FOR ST2826 ................................................................................ 87
8.1.1 DISPlay subsystem command set............................................................................... 87
8.1.2FREQuency subsystem command set.......................................................................... 89
8.1.3VOLTage subsystem command set.............................................................................. 90
8.1.4CURRent subsystem command set.............................................................................. 90
8.1.5AMPLitude subsystem command set .......................................................................... 90
8.1.6Output RESister subsystem command set ................................................................... 91
8.1.7OUTPut subsystem command set................................................................................ 91
8.1.8BIAS subsystem command set .................................................................................... 93
8.1.9FUNCtion subsystem command set............................................................................. 94
8.1.10LIST subsystem command set................................................................................... 98
8.1.11APERture subsystem command set ......................................................................... 102
8.1.12TRIGger subsystem command set........................................................................... 102
8.1.13FETCh? subsystem command set............................................................................ 104
8.1.14CORRection subsystem command set..................................................................... 107
8.1.15COMParator subsystem command set......................................................................113
8.1.16Mass MEMory subsystem command set ..................................................................118
8.2THE GPIB COMMON COMMAND FOR ST2826 ....................................................................118
CHAPTER 9 THE DESCRIPTION FOR HANDLER (OPTIONAL).................................. 122
9.1THE TECHNOLOGY DESCRIPTION FOR ST2826 HANDLER.................................................. 122
9.2THE OPERATION DESCRIPTION........................................................................................... 122
9.2.1The definition for the signal line................................................................................ 122
9.2.2Electrical feature........................................................................................................ 130
9.2.3HANDLER Interface board circuit............................................................................ 131
9.2.4operation.................................................................................................................... 135

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The description in the manual doesn‘t mean all contents in instrument. Sourcetronic
reserves the rights to change the performance, function, inner structure, appearance,
accessory and package without any inform!

ST2826 Operation manual Ver1.0
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Chapter 1 The introduction and installation
Thanks for purchasing our products! The basic performance will be introduced firstly in this
chapter, then the necessary inspection after you receive the instrument, and also the conditions
before installing the instrument.
1.1 Introduction
ST2826 series component tester is the new generation impedance tester which meets the
LXI standard，it can fit all test requirement of component and material with its 0.1% basic
accuracy and 20Hz ～5MHz frequency. It can test low ESR capacitor and high Q inductor
and also be applied in analyze of the electrical performance in microphone, oscillator, inductor,
ceramic capacitor, LCD, variode, transformer.etc.
ST2826 series is a powerful tool for electrical component design, inspection,QC and
manufacture. It can be more suitable for point inspector, curve analyze of frequency response of
piezoelectric component .etc in auto production line with its high test speed. Its variable
impedance-outputting mode can fit to different standards. With its promitable
performance ,ST2826 series can realize the different tests of commercial and military standards
as IEC and MIL.
1.2 Inspection
Please check if the instrument was worn out in the transportation, we don‘t recommend you to
charge the instrument if the cover of instrument is worn out.
1.3 Power connection
（1）Feed voltage range：100 ～120 V ac or 198 ～242 V ac. In relate with the power
setup on the rear panel.
（2）Feed frequency range：47 ～63 Hz.
（3）Feed power range：No less than 80 VA.
（4）Power inputting phase line L, null line N and ground line E should be same as plug.
（5）The instrument is designed to reduce the clutter interference from AC power input，
please use it in the low-noise environment, if not, please install power filter.
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Warning：In order to prevent leakage or people being hurt, user has to connect the
ground line to the ground.
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1.4 Fuse
The fuse is available, be sure to use our own fuse.
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Warning：The position of fuse should fit the feed voltage range.
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1.5 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）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.
（3）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.
（5）The instrument and the test lead of DUT should be far away from strong electromagnetic
field.
1.6 The use of test fixture
Please use the standard test fixture or cable，the user-made or other ones can lead incorrect
test result. The fixture or cable should be kept clean，as well as the pin of DUT, to assure
the DUT connect well with fixture.
Connect fixture or cable to Hcur、Hpot、Lcur、Lpot on the front panel.As for the DUT with
shielding case，then use shielding layer to connect with ―┴‖.
1.7 Warm up
（1）To assure the accuracy, the warm up should be more than 15 min.
（2）Don‘t turn on and off the instrument frequently, doing so will lead to the loss of the
calibrated data and the data saved by users.
1.8 Other feature
（1）Consumption：≤80VA。
（2）Dimension（W*H*D）： 400mm*132mm*385mm；
（3）Weight：about 10kg；

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Chapter 2 Panel and operation
In this chapter, it introduces the basic operational feature of ST2826 series. Before using
ST2826 series，please read this chapter to help you learn how to operate ST2826.
2.1 Front panel
In figure 2-1 the front panel of ST2826 is introduced briefly.
Figure 2-1
1 Brand and model
The brand and model of instrument
2 LCD
320×240 dot-matrix LCD display，it displays the testing result and condition .etc.
3 Softkey
Six softkeys can be used to select the control and parameter，and there is corresponding
definition on the left of each softkey which changes as different displayed page.
The function of circle softkey at the bottom is as below：
1）When the page displays More in corresponding softkey zone, the circle softkey has
the function of turning page up.
2）When the page displays Esc in corresponding softkey zone, the circle softkey has the
function of quitting page.
4 POWER

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5 Ground
The terminal is connected with the case of instrument which can be used to protect and
shield the ground terminal.
6 UNKNOWN
Four terminal pair test terminal which is used to connect four terminal pair fixture or cable.
Current driving high terminal(Hcur)；
Voltage sampling high terminal(Hpot)；
Voltage sampling low terminal(Lpot)；
Current driving low terminal(Lcur).
9 ESC
ESCAPE
7 CURSOR
The key is used to select between zone and zone in LCD. When cursor is moved to some
zone, it will displayed as inverse
10 USB
For connection USB storage device.
11 [LCRZ]
Press [LCRZ] to enter―component test display‖page.
12 [SETUP]
Press [SETUP] to enter ―Setup‖page.
13 [SYSTEM]
Press [SYSTEM] to enter ―system‖page.
14 [←]
BACKSPACE. Press it to delete the last number of input value.
15 [KEYLOCK]
Press [KEYLOCK]，[KEYLOCK] will be light，which means the function of key is locked；
press [KEYLOCK] again, [KEYLOCK]will be off，which means the keyboard is unlocked.
If the password function is set as ―ON‖，you should input the correct password when

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unlocking the keyboard, otherwise the keyboard can‘t be unlocked.
[KEYLOCK] will be light under the control of RS232. Press [KEYLOCK] again,
[KEYLOCK]will be off，which means return to the local keyboard unlock status.
16 [DC BIAS]
[DC BIAS] is used to allow or forbidden theAC bias output. [DC BIAS] is light，which
means DC bias output is available；press [DC BIAS] again，[DC BIAS] is off，which means
DC bias output is forbidden. The key has no any function where there is no DC BIAS page.
17 [RESET]
[RESET] key, function-reserved key.
18 [TRIGGER]
When the trigger mode is set as MAN(Manual)，press this key to trigger instrument
manually.
19 [ENTER]
[ENTER] is used to stop data being input，confirm and save the data displayed in inputting
line（the bottom line in LCD）.
2.2Rear panel
In figure 2-2 the rear panel of ST2826 is introduced briefly。
HANDLER RS-232C LANDEVICE
IEEE-488
DC BIAS INTERFACE
RATING FUSE
110V/60Hz 80VA
220V/50Hz 80VA T2AL 250V
~
~
T4AL 250V
!
TO AVOID ELECTRIC SHOCK,
THE POWER CORD PROTECTIVE GROUNDING CONDUCTOR
MUST BE CONNECTED TO GROUND.
DISCONNECT POWER SUPPLY BEFORE REPLACING FUSE.
WARNING
Figure 2-2
(1)DC BIAS INTERFACE(optional)
Connect bias source and instrument.
(2)HANDLER（optional）
The auto test system can be made via HANDLE Interface. The instrument can output the

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signal of bin compare and connection signal，also the ―setup‖signal can be obtained.
(3)USBDEVICE
ST2826 can be controlled by computer via USBDEVICE interface.
(4)RS232C
Realize the communication with computer.
(5)LAN
Realize the communication with computer by network.
(6)GPIB（optional）
GPIB can realize the communication with computer，building GPIB test system.
(7)Fan
Maintain the normal working temperature.
(8)Power socket
For inputting AC power.
(9)Fuse holder
For installing power fuse to protect instrument.
(10)Nameplate
For installing power fuse to protect instrument，switch 110V/220V by changing the
direction of internal core.
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Warning：The position of fuse should fit the feed voltage range.
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(11)Ground
The terminal is connected with case of instrument for protecting or shielding ground
connection.
2.3Definition of displayed zone
ST2826 adopts 320×240 LCD，and the displayed content is divided as the following zones，in
figure 2-3.

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Figure 2-3
1) Display zone
Indicates the name of page.
2) File zone
Move cursor to this zone to operate file management, which includes：load, save and
delete.
3) Tools zone
Where some uncommon functions are listed，not displaying in corresponding zone.
4) Softkey zone
Display the functional definition of softkey, which changes as different position of cursor.
5) Test result/condition zone
Display the test result and condition.

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6) Assistance and data inputting zone
The zone is used to display the system notice and the input data.
2.4Main menu and corresponding displayed page
2.4.1 [LCRZ]
Start key about the capacitance, resistance, inductance and impedance，which includes：
<LCRZ>
<Bin No.>
<Bin Count>
<List sweep>
<Test>
<Correction>
<Limit list>
<List sweep>
2.4.2 [SYSTEM]
For entering system setting page, about the start key of system setting and file list
function, the function pare includes：
System setting
2.5Basic operation
The basic of ST2826 is listed as below：
Use（[LCRZ],[SETUP],[SYSTEM]）and softkey to select the displayed page you need.
（In figure 2-5）
Use ([←][↑][→][↓]) to move cursor to the zone needs setting. When cursor is moved to
some zone, then it will display by inverse, the so-called zone means the zone where the
cursor can be set.
The function of softkey in the zone where there is cursor will be displayed in
―Softkey‖.Select and press the demanded softkey. Numeric key, [BACKSPACE] and
[ENTER] key is used to input data.
After pressing a numeric key，softkey zone will display the available unit softkey. You
can press unit softkey or [ENTER] to end data-inputting. When using [ENTER] to end
data-inputting，data unit is the default unit of the parameter in corresponding zone：Hz,
V orA. For example, the default unit of frequency is Hz.
2.6Open
Insert 3 line power plug，note：the feed voltage should be 198V～242V，the frequency should
be 47.5～52.5Hz. The phase line L, null line N, earth line E in power input should be the same
as that in power plug.
Turn on the power, and press the power switch at the left corner on the front panel，the

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instrument is set up, and the open picture is displayed.
If user sets the password protection，then inputting password is required，input the
password according to the note in screen，press [ENTER] to enter main menu.
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N
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in this series, the password is set ， the default password is2826 ， but the password
can be amended in the process of using the instrument. More password item in
<system>.
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Chapter 3[LCRZ]
3.1 <LCRZ> page
After pressing [LCRZ]，<LCRZ> will be displayed on the screen.
As figure 3-1：
Figure 3-1
On the page above，the test result is displayed by large character. The following parameters
can be set on this page.
Test function（Function）
Test range（Range）
Test frequency（Frequency）
Test level（Level）
DC Bias（Bias）
Test speed（Speed）
File management（File）
Other tools（Tool）
There are 9 zones，which are：LCRZ，Function，Range，Frequency，Level，Bias，Speed，
File and Tool. Each control function will be discripted in the following sections.
The test result／condition displays the following information. These conditions can be set on
<Measure> or <Correction> page.
Signal source voltage／current monitor（Vm,Im）
Open，short，load correction ON/OFF setting（Correction）