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Tonghui Electronics TH2826/A Operation Manual

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Summary of Contents for Tonghui Electronics TH2826/A

  • Page 1 TH2826/A High Frequency Meter ： （ ） ， ： （ ） ， ： （ ） ， ： （ ） ： （ ） ： （ ） ： ： ： ： ： ：...

  • Page 2: Table Of Contents

    TH2826 Operation manual Ver1.0 CONTENT CHAPTER 1 THE INTRODUCTION AND INSTALLATION..........1 1.1 I ........................1 NTRODUCTION 1.2 I .......................... 1 NSPECTION 1.3 P ......................1 OWER CONNECTION 1.4 F ............................. 2 1.5 E ........................2 NVIRONMENT 1.6 T ....................2 HE USE OF TEST FIXTURE 1.7 W ..........................
  • Page 3 TH2826 Operation manual Ver1.0 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 <L > ..................... 19 IST SWEEP DISPLAY PAGE 3.4.1 Sweep mode......................
  • Page 4 TH2826 Operation manual Ver1.0 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 <L > ..................
  • Page 5 TH2826 Operation manual Ver1.0 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 <N > ....................48 ETWORK SETTING PAGE 4.3.1Network card status ..................... 49 4.3.2Host name ........................
  • Page 6 TH2826 Operation manual Ver1.0 6.2.3The test signal level ..................... 62 6.2.4Internal resistance mode ....................63 6.2.5Test signal level monitor....................63 6.2.4The maximum range of the test and display ..............63 6.2.5The test voltage for DC resistance................63 6.2.6 The internal DC voltage bias ..................63 6.3T .........................
  • Page 7 TH2826 Operation manual Ver1.0 7.4.1System configuration ....................85 7.4.2Install drive ........................85 7.5USBCDCV ..................... 86 IRTUAL PORT 7.5.1 system configuration....................87 7.5.2 Install drive ......................... 87 CHAPTER 8 TH2826 COMMANDS ..................89 8.1S TH2826................89 UBSYSTEM COMMANDS FOR 8.1.1 DISPlay subsystem command set ................89 8.1.2FREQuency subsystem command set................
  • Page 8 TH2826 Operation manual Ver1.0 ： ： ： The description in the manual doesn’t mean all contents in instrument.Tonghui reserves the rights to change the performance, function, inner structure, appearance, accessory and package without any inform! So please contact us by the address on the cover if you are confused by the difference between manual and instrument.

  • Page 9: Chapter 1 The Introduction And Installation

    TH2826 Operation manual Ver1.0 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. Introduction TH2826 series component tester is the new generation impedance tester in China which meets the LXI standard，it can fit all test requirement of component and material with its 0.1%...

  • Page 10: Fuse

    TH2826 Operation manual Ver1.0 Fuse The fuse is available, be sure to use our own fuse. —————————————————————————————————— Warning：The position of fuse should fit the feed voltage range. —————————————————————————————————— Environment （1）Please do not operate the instrument in the place that is vibrative, dusty, under direct sunlight, or where there is corrosive air.

  • Page 11: Chapter 2 Panel And Operation

    TH2826 Operation manual Ver1.0 Chapter 2 Panel and operation In this chapter, it introduces the basic operational feature of TH2826 series. Before using TH2826 series，please read this chapter to help you learn how to operate TH2826. 2.1 Front panel In figure 2-1 the front panel of TH2826 is introduced briefly. TH2826 LCR Meter 20Hz~5MHz...
  • Page 12 TH2826 Operation manual Ver1.0 Ground ⑸ The terminal is connected with the case of instrument which can be used to protect and shield the ground terminal. ⑹ UNKNOWN Four terminal pair test terminal which is used to connect four terminal pair fixture or cable. Current driving high terminal(Hcur)；...

  • Page 13: Rear Panel

    TH2826 Operation manual Ver1.0 [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. ⒃ [DC BIAS] [DC BIAS] is used to allow or forbidden the AC bias output. [DC BIAS] is light，which means DC bias output is available；...

  • Page 14: Definition Of Displayed Zone

    TH2826 Operation manual Ver1.0 TH2826 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.
  • Page 15 TH2826 Operation manual Ver1.0 Figure 2-3 Display zone Indicates the name of page. File zone Move cursor to this zone to operate file management, which includes：load, save and delete. Tools zone Where some uncommon functions are listed，not displaying in corresponding zone. Softkey zone Display the functional definition of softkey, which changes as different position of cursor.

  • Page 16: Main Menu And Corresponding Displayed Page

    TH2826 Operation manual Ver1.0 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>...
  • Page 17 TH2826 Operation manual Ver1.0 instrument is set up, and the open picture is displayed. Just as that shown in figure 2-4，which is the humorous edition of our brand，there is a capacitor in the middle of the earth combined by two T and a H，also the model （TH2826） is displayed，as well as edition number（Ver 1.0.0）.

  • Page 18: Chapter 3[Lcrz]

    TH2826 Operation manual Ver1.0 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）...

  • Page 19: 1Measure

    TH2826 Operation manual Ver1.0 3.1.1Measure In TH2826, two parameters of impedance component can be tested meanwhile：Primary parameter and secondary parameter. The parameter is as below： Primary parameter (Module of impedance) (Module of admittance) (Inductance) (Capacitance) (Resistance) (Conductance) (DC resistance) Secondary parameter (Dissipation factor) (Quality factor) (Equivalent series resistance)

  • Page 20: 2Range

    TH2826 Operation manual Ver1.0 Lp-D Lp-Q Lp-G Lp-Rp More 3/7 Select and press a softkey to set measure function. If the softkey you require is not displayed on the page, press More 3/7 to display the following softkeys. Ls-D Ls-Q Ls-Rs More 4/7 Select and press a softkey to set measure function.

  • Page 21: 3Frequency

    TH2826 Operation manual Ver1.0 Operation step of range setting： Move cursor to Range. The following softkeys will be displayed. AUTO The softkey is used to set range AUTO mode HOLD The softkey is used to switch AUTO to HOLD. When the range is set as HOLD mode，the range is locked in the current range.

  • Page 22: 5Dc Bias

    TH2826 Operation manual Ver1.0 defined as test frequency，which is generated by internal oscillator. You can set voltage value and current value as well. There are 4 kinds if signal source input impedance in TH2826. When test function is selected as DCR，Frequency zone displays“----”. ：...

  • Page 23: 6Speed

    TH2826 Operation manual Ver1.0 Use softkey or numeric key to select or set DC bias. When using numeric key to input the required level value，the available DC bias unit (mV, V, µA, mA and A) are displayed. which can be used to input unit and data. When using [ENTER] to input bias value，the default unit is V or A.

  • Page 24: Bin No.display> Page

    TH2826 Operation manual Ver1.0 Press Arithmetic point lock A to lock the position of arithmetic point in primary parameter result. When the arithmetic point is locked,“▲” is displayed. Press Arithmetic point lock A once，the last digit will be deleted, and the displayed digit will be reduced by one.

  • Page 25: 1Comparator Function

    TH2826 Operation manual Ver1.0 Other（Tool） On this page，there are：Bin No. Disp，Compare，File and Tool. Each control function zone will be introduced briefly below. The test result/condition zone displays the information below. The monitor zone can,t be set on this page, but can be set on <Measure>，<LCRZ> or<Correction> page. Test function（Function）...

  • Page 26: 1Parameter

    TH2826 Operation manual Ver1.0 Figure 3-3 The following parameters can be set on <Bin count display> File management（File） Other tools（Tool） There are 3 zones，which are ：Bin No. count display，File and Tool. Each function will be introduced below. The test result/condition zone displays the information below. The monitor zone can’t be set on this page, but can be set on <Limit list setting>...

  • Page 27: Aux)

    TH2826 Operation manual Ver1.0 3.3.6 (AUX) Bin count value of current auxdiary bin is displayed. 3.3.7(OUT) Bin count value of current out bin is displayed. 3.3.8File management Refer to 4.2<File management> function. 3.3.9Auxdiary tools TH2826 has the function of bin count. The compare function is sorted as different bins, when the component of each bin is counted.

  • Page 28: Sweep Mode

    TH2826 Operation manual Ver1.0 Figure 3-4 On this page, the test point can be tested automatically，the test result is compared with limit value. In the process of list sweep test，“►” indicates the current sweep point. The following parameters can be set on <List sweep display> page. Sweep mode（Mode）...

  • Page 29: Frequency(Hz)

    TH2826 Operation manual Ver1.0 displayed. STEP Press SEQ，select SEQ mode. Press STEP, select STEP mode. 3.4.2 Frequency(Hz) The current parameter mode and unit are displayed. The parameter item of sweep list is 其正 displayed. 3.4.3 Cp[F] D[ ] The “function” parameter and unit are displayed. The sweep result is displayed. 3.4.4 CMP（compare）...

  • Page 30: Trigger Mode

    TH2826 Operation manual Ver1.0 Test frequency（Frequency） Test level （Level） DC bias （Bias） Test speed （Speed） Trigger mode（Trigger） Auto level control（Constant level） Bias current isolation ON/OFF (ISO) Average time（Average） Voltage level monitor ON/OFF (V Current level monitor ON/OFF (I Delay time（Delay） Output resistance（Internal resistance）...

  • Page 31: Auto Level Control Function

    TH2826 Operation manual Ver1.0 performs a test. BUS trigger mode can’t be set on the front panel. ： ： when TH2826 is in the process of test ， ： a trigger signal is received, it will be ignored. TH2826 send trigger signal after test ends. When triggering TH2826 by HANDLER interface ，...

  • Page 32: Average Time

    TH2826 Operation manual Ver1.0 3.4.10 Average time The average function of TH2826 can calculate the result of 2 tests or more in average. The setting range is from 1 to 255 with the stepper of 1. Operational step of average setting Set average time according to the operation below.

  • Page 33: Signal Source Internal Resistance

    TH2826 Operation manual Ver1.0 delay time is within the range：0 s to 60 s，with the stepper of 1 ms. When the instrument is applied in auto test system，the trigger delay function is available. When the instrument is triggered by HANDLER interface，the trigger delay time can assure the reliable contact of DUT and test terminal.

  • Page 34: File Management

    TH2826 Operation manual Ver1.0 ΔABS＝Ｘ－Ｙ Where， X: The test value of current DUT. Y: Preset reference value. Δ% mode（percentage deviation mode） The deviation is the percentage one: the deference of test value and preset reference value divides the reference value. The formula of calculating Δ% is as below： Δ%＝(Ｘ－Ｙ）/Y ×100 [%] Where，...

  • Page 35: Auxdiary Tools

    TH2826 Operation manual Ver1.0 3.4.16 Auxdiary tools On <Measure>, the tools provides the function of system reset and clear setting. The system reset can restart TH2826. The operational step Execute the operation to reset TH2826 and load the setting parameter on <Measure> . Move cursor to Tool zone，the following softkeys are displayed.

  • Page 36: Open Correction

    TH2826 Operation manual Ver1.0 The test result of load correction.（Measure A，Measure B） In multi way correction mode，the current channel number(Channel) The actual result of load correction can be tested on Freq 1，Freq 2 and Freq 3 zone. 3.5.1 Open correction The open correction of TH282 can clear the error caused by scattering admittance.

  • Page 37: Short Correction

    TH2826 Operation manual Ver1.0 Open full clear DCR open Connect fixture to test terminal. Press Open full clear，TH2826 can test open admittance of 41frequency points. It costs 75 seconds for open correction. The following softkeys are displayed. Drop The softkey can cancel the current open correction. The former data is reserved. Press DCR open，TH2826 can test open resistance.

  • Page 38: Load Correction

    TH2826 Operation manual Ver1.0 Operational step of open correction 1) Move cursor to Short，the following softkeys are displayed. Short full clear DCR Open 2）Connect fixture to test terminal. Press Short full clear，TH2826 can test short admittance of 41frequency points. It costs 75 seconds for open correction.

  • Page 39: Load Correction Test Function

    TH2826 Operation manual Ver1.0 Press Open single clear to open correct the set frequency. Move cursor to Open. Press ON. Move cursor to Freq 1，Freq 2 or Freq 3. 10) Use fixture to short. 11) Press Short single clear to short correct the set frequency. 12) Move cursor to Short.

  • Page 40: Swop Parameter

    TH2826 Operation manual Ver1.0 As figure 3-9： Figure 3-9 TH2826 can set bin limit of 9 primary parameters and bin limit value of a secondary parameter. The test result can be sorted into 10 bins at most（BIN1 to BIN9 and BIN OUT）. If the primary parameter is within BIN1 to BIN9，...

  • Page 41: Compare Function Limit Mode

    TH2826 Operation manual Ver1.0 former setting. 3.6.2 Compare function limit mode Compare function provides two modes. As figure 3-10. Tolerance mode Set the tolerance value of nominal value as compare limit value. There are two modes：one is percentage tolerance and the other is absolute value one. Sequential mode The test range is set as compare limit value.

  • Page 42: Nomianl Value Setting

    TH2826 Operation manual Ver1.0 Move cursor to mode，the following softkeys are displayed. % TOL The key is used to set limit mode as：Tolerance mode of percentage. ABS TOL The key is used to set limit mode as：Tolerance mode of absolute. SEQ MODE The key is used to set limit mode as：Sequential mode Select the softkeys above，set limit mode.

  • Page 43: File Management

    TH2826 Operation manual Ver1.0 Operational step of setting high and low limit Set Param，Nomi and Mode. Move cursor to Tool. Move cursor to Low limit of Bin 1. if you select tolerance mode, execute step 4 to step 7；if you select sequentional mode, execute step8 to 12. Use numeric key to input low limit value of Bin 1，...

  • Page 44: Mode

    TH2826 Operation manual Ver1.0 Figure 3-11 TH2826 can test 10 frequency，level or bias voltage. The following sweep parameters can be set on <List sweep setting>. （Mode） （ [Hz], level [V], level [I], bias [V], bias [I]） (sweep point) (LMT) （Hi limit，Lo limit） 3.7.1 Mode Same as that on <List sweep display>.

  • Page 45: Trace Sweep Setting

    TH2826 Operation manual Ver1.0 3.8 <Trace sweep setting> Press [SETUP]，Measure，Correction，Limit setting，List setting and Trace setting are displayed. Press Curve setting. The following page is displayed. As figure 3-12： Figure 3-12 3.8.1 Mode “Mode” includes [Hz], level [V], level [A], bias [V], bias [A]. Operation：Move cursor to Mode，and select corresponding softkey.

  • Page 46: Trace Sweep Display

    TH2826 Operation manual Ver1.0 3.9 <Trace sweep display> Press [LCRZ]，Measure，Correction，Limit setting，List setting and Trace setting are displayed Press Trace sweep. The following page is displayed. Figure 3-13 Press 【TRIGGER】to start sweeping. 3.9.1 A max and A）value 3.9.2 A min and a）value 3.9.3 B max and B）value 3.9.4...
  • Page 47 TH2826 Operation manual Ver1.0 of curve for each sweep； Lock PressRatio：Lock，it displays Ratio：Auto，now system locks the display ratio of curve. 3） Load Press Load ，it displays Load ，which means load data status. Now the following figure is displayed： ： Figure 3-14 Shown as figure 3-14，now the value below can be loaded：...
  • Page 48 TH2826 Operation manual Ver1.0 sweep，when user presses [TRIGGER] once，then the instrument sweeps curve. PressTrigger： MAN， the zone displaysTrigger： EXT， which means external trigger sweep，when the external interface or computer triggers once, then instrument sweeps curve. Press Trigger：EXT，the zone displaysTrigger：INT，which means internal trigger sweep，after instrument sweeps curve, it performs next time automatically.
  • Page 49 TH2826 Operation manual Ver1.0 Figure 3-15 ◇41...

  • Page 50: Chapter 4 [System] Menu And File

    TH2826 Operation manual Ver1.0 Chapter 4 [SYSTEM] menu and file 4.1<System> Press [SYSTEM]，then [System setting] to enter <System setting> page. Shown as figure 4-1： Figure 4-1 This page includes LCR contrast， beeper， alarm， language， password， bus mode， bus address .etc. 4.1.1LCR contrast Operational step of LCR contrast：...

  • Page 51: 4Fail Beeper

    TH2826 Operation manual Ver1.0 HIGH LONG HIGH SHORT LOW LONG TWO SHORT 4.1.4Fail beeper The zone is used to control and display the test result as beeper mode when interior products are tested. Operational step of setting fail beeper： Move cursor toPass beeper. The following softkeys are displayed. HIGH LONG HIGH SHORT LOW LONG...

  • Page 52: 8Bus Address

    TH2826 Operation manual Ver1.0 RS232C GPIB USBTMC USBCDC Press RS232C to select RS232C interface bus. Press GPIB to select GPIB bus. Press LAN to select LAN bus. Press USBTMC to select USBTMC bus. Press USBCDCto select USBCDC bus. 4.1.8Bus address Operational step of setting bus address：...

  • Page 53: File Management> Page

    TH2826 Operation manual Ver1.0 4.2<File management> page In this chapter, the information about save and load of TH2826 is introduced. Symbol： E: is the abbreviation of External，which means the external storage，as：U disk. I: is the abbreviation of Internal，which means the internal storage，that is internal Flash. 4.2.1Introduction of save/load function Save and function Figure 0-1...

  • Page 54: Sta

    TH2826 Operation manual Ver1.0 The folder and file structure in U disk is shown as Figure 4-2: Figure 4-2 4.2.3（*.STA） The instrument can save 20 groups of *.STA file. Use File manage function in File menu，the following data will be saved or loaded in the form of file，which is called *.STA.
  • Page 55 TH2826 Operation manual Ver1.0 The set parameter on <Limit list> page Function(Swap parameter) Nominal value(Reference value) Compare mode（%-TOL/ABS-TOL/SEQ-MODE） Aux Bin (ON/OFF) Compare function (ON/OFF) High and low limit value of each bin The set parameter on <List sweep > page List sweep mode（SEQ/STEP）...

  • Page 56: Operational Step Of File Management

    TH2826 Operation manual Ver1.0 4.2.4 Operational step of file management A. Check the existed file Press File manage to enter <File management > page. User can switch in “I：(Internal file list)” and “E:(External file list)”by[←] [→]. Use [↑] [↓] to check one by one. Shown as figure 4-3.

  • Page 57: 1Network Card Status

    TH2826 Operation manual Ver1.0 Figure 4-5 This page includes most net menus， including DHCP， auto IP， IP address， sub net mask off code，gateway，first choice DNS server，stand by DNS server. 4.3.1Network card status Indicates if the new card of TH2826 works normal. 4.3.2Host name Name of TH2826 in LAN，which is used to identify TH2826.

  • Page 58: Ip Add

    TH2826 Operation manual Ver1.0 4.3.5 IP Add Operation of setting IP address： (1)Move cursor to IP add. Move cursor to where the IP address is modified. (2)The following softkeys are displayed. ↑（+） Increase the value of IP address. ↓（-） Decrease the value of IP address. Or you can input the IP address，then press enter.

  • Page 59: Chapter 5 Measurement Procedure And Examples

    TH2826 Operation manual Ver1.0 Chapter 5 Measurement procedure and examples This chapter covers basic measurement procedures and examples. It also offers various measurement hints. 5.1Clear (CORRECTION OPERATION) To prevent the stray capacitance from disturbing the measurement accuracy, you must do the OPEN/SHORT CORRECTION.

  • Page 60: Dot Frequency Clear (For Single Frequency)

    TH2826 Operation manual Ver1.0 Press OFF, close the dot frequency clear function for frequency 2. Move the cursor to FREQ 3 field. ON, OFF, MEAS OPEN, MEAS SHORT and MEAS LOAD will be displayed in the softkey area. Press OFF, close the dot frequency clear function for frequency 3. 5.2.1 Dot frequency clear (for single frequency) Dot frequency clear for single frequency is recommended.

  • Page 61: The Right Connection Between The Test Fixture And The Dut

    TH2826 Operation manual Ver1.0 m) Connect the shorting bar (TH26010) to the test fixture. Press the softkey MEAS SHORT to perform short correction. 5.3The right connection between the test fixture and the DUT Generally, any mutual inductance, interference of the test signals, or unwanted residual factors in the connection method incidental to ordinary termination methods will have a significant effect on measurement, especially at high frequency.
  • Page 62 TH2826 Operation manual Ver1.0 Shielded ground Test terminal Metal conductor Figure 5-1 the disturb of the stray capacitance Shielded ground Shielded board Test terminal Metal conductor Figure 5-2 the method of eliminating the disturb of the stray capacitance When the DUT is High Impedance (e.g.: small capacitance), the disturbance of the stray capacitance should not be neglected.

  • Page 63: Inductance Test Example

    TH2826 Operation manual Ver1.0 of the test error is electromagnetic coupling between the test leads. TH2826 employs a four-terminal pair measurement configuration to eliminate the effect of the coupling. Because the current in HD, LD and the one in the shielding terminal are the same size, but the opposite direction, the magnetic fields are eliminated.
  • Page 64 TH2826 Operation manual Ver1.0 Press[1][.][5]. +1.5 will be displayed in the bottom line of the screen, and the softkey area will display the usable units (mV, V, uA, mA and A).Press ENTER, the level will be changed to 1.5V. Press [LCRZ], and then press MORE 1/3, MEAS SETUP page will be displayed.

  • Page 65: Multi-Frequency List Sweep For Capacitance Test

    TH2826 Operation manual Ver1.0 function should be OFF. Please refer to 5.1 in this chapter. 5.6Multi-frequency List sweep for capacitance test Measurement conditions: Function: Cp-D Level:1Vrms The other parameters are shown in table 5-1: Table 5-1 the related parameters of the capacitance test frequency Compared parameter upper limit...
  • Page 66 TH2826 Operation manual Ver1.0 automatically. Press [3][2][5], +325 will be displayed in the bottom line of the screen. The usable units (p, n, u, m and MORE 1/2) will be displayed in the softkey area. Press n, the value of the field will be changed to 325.000n. The cursor will be moved to the HIGH field of the sweep point 1 automatically.

  • Page 67: Operation Example For Load Correction

    TH2826 Operation manual Ver1.0 4) Connect the test fixture (TH26005) to TH2826’s test terminals. 5) Perform the clear. (To avoid the disturbance of the stray capacitance, you should do OPEN/SHORT CORRECTION by referring to Dot frequency clear in this chapter.) 6) Insert the capacitance to test fixture.
  • Page 68 TH2826 Operation manual Ver1.0 (c)Move the cursor to OPEN field. ON, OFF and MEAS OPEN will be displayed in the softkey area. (d)Press ON to enable the open correction. (e)Move the cursor to SHORT field. ON, OFF and MEAS SHORT will be displayed in the softkey area.

  • Page 69: Chapter 6 Performance And Test

    TH2826 Operation manual Ver1.0 Chapter 6 Performance and test This chapter describes the performance of TH2826. The related parameters for TH2826 are illuminated. 6.1Measurement function 6.1.1 Measurement parameter and sign description C: Capacitance L：Inductance R：Resistance Z：Impedance Y：Admittance X：Reactance B：susceptance G：conductance θ：phase angle D：dissipation Q：quality factor...

  • Page 70: 7Delay Time

    TH2826 Operation manual Ver1.0 6.1.7Delay time 0-60 s is programmable stepped by 1ms. 6.1.8The unknown terminal HD: High current drive HS: High potential sense LS: Low potential sense LD: Low current drive 6.1.9Measurement speed Fast: approximately 200 times/s Medium: approximately 25 times/s Slow: approximately 5 times/s The medium speed and the fast speed will be reduced when the frequency is slower than 1kHz.

  • Page 71: 4Internal Resistance Mode

    TH2826 Operation manual Ver1.0 —20mARMS +10μARMS） 6.2.4Internal resistance mode 10/CC（Constant Current） 、30Ω、50Ω、100Ω 6.2.5Test signal level monitor Figure 0-3 Mode Range Accuracy Voltage —5V ±（10%×Reading+10mV） —100mA ±（10%×Reading+10μA） Current 6.2.4The maximum range of the test and display Figure 0-4 Parameter Displayed range L、Lk 0.01nH ～...

  • Page 72: 2Test Speed Factor(C)

    TH2826 Operation manual Ver1.0 (2)In the mode of constant voltage or current Ω When range>=100 × Ω − Ω Range [ ] | θ ° = ± Basic accuracy Z(%) or Ω Range Ω When range <100 × Ω × −...

  • Page 73: 3Cable Length Factor

    TH2826 Operation manual Ver1.0 6.3.3Cable length factor Cable length (100kHz max)1.5+0.015*f[kHz] (100.1kHz min)1.5+0.3*f[kHz] 6.3.4 Temperature factor Temperature Operation temperature=T℃ 0.1*basic accuracy*(T-20) Basic accuracy table 1(0.010V to 0.049V) Ω When range>=100 × Ω − Ω Range [ ] | = ± Basic accuracy Ω...
  • Page 74 TH2826 Operation manual Ver1.0 1kΩ A=0.6 B=0.05 A=0.25 B=0.01 A=0.25 B=0.01 B=0.2 6month A=0.5 B=0.01 A=0.15 B=0.01 A=0.15 B=0.01 A=0.5 B=0.02 300Ω A=0.6 B=0.05 A=0.25 B=0.01 A=0.25 B=0.01 B=0.2 A=0.5 B=0.01 A=0.15 B=0.01 A=0.15 B=0.01 A=0.5 B=0.02 100Ω A=0.6 B=0.05 A=0.25 B=0.01 A=0.25 B=0.02 A=0.5 B=0.02...
  • Page 75 TH2826 Operation manual Ver1.0 × Ω − Ω Range [ ] | = ± Basic accuracy Ω Range When range <100 Ω × Ω × − Ω Range [ ] 10 [ ] | = ± Basic accuracy = Ω Range Zx:sample value of impedance Z A,B: Basic accuracy factor...
  • Page 76 TH2826 Operation manual Ver1.0 100kΩ A=1.5 B=0.3 A=0.75 B=0.075 A=0.75 B=0.075 A=1.5 B=0.3 A=2.25 B=0.3 A=0.375B=0.075 A=0.375 B=0.075 A=1.5 B=0.15 10kΩ A=0.75 B=0.015 A=0.3 B=0.015 A=0.375 B=0.015 A=0.75 B=0.075 A=5.25 B=3 A=0.525 B=0.015 A=0.225B=0.015 A=0.225 B=0.015 A=0.45 B=0.075 A=2.25 B=1.5 3kΩ...
  • Page 77 TH2826 Operation manual Ver1.0 1MΩ A=1 B=1 A=0.7 B=0.5 A=0.7 B=0.5 A=1.2 B=1 A=2 B=0.2 A=0.3 B=0.2 A=0.3 B=0.2 A=1.2 B=0.5 100kΩ A=0.45 B=0.05 A=0.3 B=0.05 A=0.3 B=0.05 A=0.5 B=0.08 A=0.35 B=0.2 A=0.2 B=0.02 A=0.2 B=0.02 A=0.5 B=0.08 10kΩ A=0.4 B=0.01 A=0.15 B=0.01 A=0.2 B=0.01 A=0.3 B=0.04...
  • Page 78 TH2826 Operation manual Ver1.0 A=0.45 B=0.015 A=0.12 B=0.015 A=0.12 B=0.015 A=0.15 B=0.03 A=0.3 B=0.075 A=2.25 B=0.3 10Ω A=0.6 B=0.03 A=0.225B=0.03 A=0.225 B=0.03 A=0.375 B=0.03 A=0.75 B=0.045 A=3 B=0.3 A=0.45 B=0.015 A=0.12 B=0.015 A=0.12 B=0.015 A=0.15 B=0.03 A=0.3 B=0.075 A=2.25 B=0.3 1Ω...
  • Page 79 TH2826 Operation manual Ver1.0 A=0.25 B=0.005 A=0.05 B=0.005 A=0.05 B=0.005 A=0.08 B=0.02 A=0.15 B=0.02 A=1 B=0.2 30Ω A=0.35 B=0.01 A=0.08 B=0.01 A=0.08 B=0.01 A=0.2 B=0.02 A=0.3 B=0.03 A=1.5 B=0.2 A=0.25 B=0.005 A=0.05 B=0.005 A=0.05 B=0.005 A=0.08 B=0.02 A=0.15 B=0.02 A=1 B=0.2 10Ω...
  • Page 80 TH2826 Operation manual Ver1.0 Zx:sample value of impedance Z A,B:basic accuracy factor Accuracy factor of Z (%)：value A，B in group 1 θ ° Accuracy factor of )：value A，B in group 2 >= 1.001 Wehn , basic accuracy must multiply (f[MHz]+3)/4 45(1.001V to 5.000V) Table 6-11Basic accuracy Range...

  • Page 81: Safety Requirement

    TH2826 Operation manual Ver1.0 1year 1kΩ A=0.6 B=0.015 A=0.225 B=0.015 A=0.225 B=0.015 A=0.375 B=0.03 A=1.05 B=0.075 A=0.45 B=0.015 A=0.12 B=0.015 A=0.12 B=0.015 A=0.15 B=0.03 A=0.3 B=0.03 300Ω A=0.6 B=0.015 A=0.225 B=0.015 A=0.225 B=0.015 A=0.375 B=0.03 A=1.05 B=0.075 A=0.45 B=0.015 A=0.12 B=0.015 A=0.12 B=0.015 A=0.15 B=0.03 A=0.3 B=0.03...

  • Page 82: 3Check The Function

    TH2826 Operation manual Ver1.0 The experiment instruments are shown in table 6-10 The instrument name requirement 100pF 1000pF 0.02％ 10000pF Standard capacitance (the loss D has been 10nF known) 0.1uF 10Ω 100Ω 1kΩ 0.02％ standard resistor 10kΩ 100kΩ 0.1Ω 1Ω 10Ω...

  • Page 83: Frequency

    TH2826 Operation manual Ver1.0 multimeter to AC, connect one test stick to the HCUR terminal of the instrument, and the other to the ground terminal. Change the level to 20mv, 100mv, 200mv, 1V and 2 V in turn, the test result must meet the requirement described in this chapter.

  • Page 84: 10The Dcr Accuracy

    TH2826 Operation manual Ver1.0 Test frequency: 100Hz, 1kHz ,10kHz and 100kHz Level: Range: AUTO Bias: Speed: slow Short correction and open correction should be done before the test. Connect the standard resistor (10Ω, 100Ω, 1kΩ, 10kΩ, and 100kΩ) to the test fixture. Change the test frequency. The error between the test result and the standard value must be in the range of the |Z| accuracy referring to this chapter.

  • Page 85: Chapter 7 Remote Control

    TH2826 Operation manual Ver1.0 Chapter 7 Remote control 7.1TH2826 RS232C RS232 interface is asynchronous serial communication interface Like the most serial interface used in the world, the serial interface on TH2826 doesn’t meet RS-232 strictly, but provides one set shown in table 7-1. Table 7-1 TH2826 RS232 interface signal abbreviate...
  • Page 86 TH2826 Operation manual Ver1.0 The connection between the TH2826 and the computer is shown in figure 7-1: TXD(2) (3) RXD TH2826 (CONTROLLER) RXD(3) (2) TXD GND(5) (5) GND Figure 7-1 Figure 7-1 shows that the pin definition of the TH2826for serial interface is different from that of IBM AT PC.

  • Page 87: Th2826 Gpib

    TH2826 Operation manual Ver1.0 7.2TH2826 GPIB GPIB (General Purpose Interface Bus) is an interface standard for connecting computers and the peripherals, which supports the IEEE 488.2. The GPIB interface allows you to control the TH2826 from an external computer. The computer sends commands and instructions to the TH2826 and receives data sent from the TH2826 via the GPIB.
  • Page 88 TH2826 Operation manual Ver1.0 The test instrument Back-connector Figure7-3 the two- back-connector s uperposition ◇80...

  • Page 89: 1Gpib Gpib Interface Function

    TH2826 Operation manual Ver1.0 Figure7-4 the four- back-connector superposition 7.2.1GPIB GPIB interface function GPIB interface provides various function, the instrument can send and receive the data and the command by the GPIB interface and the corresponding bus, which is shown in table 7-2：...

  • Page 90: 2Gpib Address

    TH2826 Operation manual Ver1.0 Instrument trigger Send trigger signal control Send control information 7.2.2GPIB address The range of the GPIB address on TH2826 is from 1 to 31.the setting for GPIB can refer to the bus address field on the SYSTEM SETUP page with the SYSTEM menu key being pressed.

  • Page 91: Lanremote Control System

    TH2826 Operation manual Ver1.0 Component X system component Y system the test instrument infomation common command and requirement syntax and data structure remote control D C B A A B C D IEEE488.1 SCPI SCPI D layer: instrument function C layer: common system function B layer: communication function A layer: interface function (IF).

  • Page 92: Visit Th2826 By Browser

    TH2826 Operation manual Ver1.0 Now you can set DHCP、IP、SUB MASK、DNS, parameter setting reference and net parameter setting. Such as ：the net parameter is shown as 7-5： Figure 7-6 Reference setting of TH2826 parameter is shown as figure 7-6： Figure 7-7 7.3.1 visit TH2826 by browser When visiting TH2826 by browser,TH2826 is like a WEB server.

  • Page 93: Visit Th2826 By Labview

    TH2826 Operation manual Ver1.0 Figure 7-8 (4) Click the left button to enter page. 7.3.2 Visit TH2826 by labview User can control TH2826 by labview provided by Tonghui. 7.4USB Remote control system USB remote control system can control device by USB interface, which fits the protocol of USBTMC-USB488 and USB2.0.

  • Page 94: Usbcdcvirtual Port

    TH2826 Operation manual Ver1.0 Figure 7-10 Then press“Next”，select the correct path(niusbtmc.inf)，as Figure 7-10，press “Next”, the installation is finished. Figure 7-11 After the drive is installed，user can see ”usb test and measurement device”. Shown as Figure 7-11： Figure 7-12 7.5USBCDCVirtual port 在...

  • Page 95: System Configuration

    TH2826 Operation manual Ver1.0 7.5.1 system configuration Use USB cable to connect the USB interface on the rear panel of TH2826 to the USB port in host computer. 7.5.2 Install drive The method of installing USBCDC drive is the same as that of USBTMC，but when selecting driving file Select the path of usbVCom.inf，as Figure 7-12。...
  • Page 96 TH2826 Operation manual Ver1.0 Now，usb VCom port is like a serial port. When PC has no serial port，user can use the communication software based on serial port in this mode. ◇88...

  • Page 97: Chapter 8 Th2826 Commands

    TH2826 Operation manual Ver1.0 Chapter 8 TH2826 commands This chapter describes the commands specific for TH2826 The signs in this manual are as follows: NR1: integer, e.g.: 123 NR2: fix-point number, e.g.:12.3 NR3: floating-point number, e.g.:12.3E+5 NL: carriage key, ASCII code: 10 END: EOI signal in IEEE-488 8.1Subsystem commands for TH2826 ●DISPlay ●ORESister...
  • Page 98 TH2826 Operation manual Ver1.0 :RFONt LARGe, TINY , OFF :PAGE is used to set the display page. Char ‘?’can can be used to query the current page. Command syntax:DISPlay:PAGE <page name> The following value can be selected for <page name>: MEASurement: set the page to LCR Measurement display.

  • Page 99: 2Frequency Subsystem Command Set

    TH2826 Operation manual Ver1.0 DISPlay:LINE”<string>” Command syntax: <string> is the ASCII string(the maximum length is 20). e.g.：WrtCmd(“DISP:LINE ”Resistor meas””); query syntax： DISPlay:LINE? return： <string><NL^END> :ResultFONt is used to set the font of the measurement result. Char’?’can be used to query the current font of the measurement result. Command syntax：...

  • Page 100: 3Voltage Subsystem Command Set

    TH2826 Operation manual Ver1.0 8.1.3VOLTage subsystem command set VOLTage subsystem command set is used to set the voltage level of the measurement instrument. Char ‘?’ can be used to query the current level of the test voltage. command syntax： <value> VOLTage MIN <value>: NR1,NR2 or NR3 format with V as the postfix...

  • Page 101: 6Output Resister Subsystem Command Set

    TH2826 Operation manual Ver1.0 AMPLitude:ALC OFF char ‘1’(49) is equivalent to ON char ‘0’(48) is equivalent to OFF. e.g.：WrtCmd(“AMPL:ALC 0”); set the ALC close query syntax：AMPLitude:ALC？ return：<NR1><NL^END> 8.1.6Output RESister subsystem command set Output RESister subsystem command set is used to set the output internal resistance mode.

  • Page 102: 8Bias Subsystem Command Set

    TH2826 Operation manual Ver1.0 Command syntax： OUTPut:HPOWer char ‘1’( 49) is equivalent to ON char ‘0’( 48) is equivalent to OFF. query syntax：OUTPut:HPOWer? return： <INT> <NL^END> or <OPT1><NL^END>, OPT1 shows that the DC 100mA/10V bias source is used，or not used. :DC:ISOLation is used to set DC isolation ON/OFF of the DC 100mA/10Vbias source.
  • Page 103 TH2826 Operation manual Ver1.0 BIAS :STATe ON (1) OFF (0) :VOLTage <value> (仅 GPIB) :CURRent <value> :STATe is used to set the bias ON/OFF. Char ‘?’ can be used to query the state of the bias. Command syntax: BIAS:STATe char ‘1’( 49) is equivalent to ON char ‘0’( 48) is equivalent to OFF.

  • Page 104: 9Function Subsystem Command Set

    TH2826 Operation manual Ver1.0 return：<NR3><NL^END> :CURRent (only for GPIB) is used to the external bias current. Char ‘?’ is used to query the bias current. Because the external bias current is controlled by serial interface, this command is supported only by GPIB. command syntax：...
  • Page 105 TH2826 Operation manual Ver1.0 FUNCtion :IMPedance CPRP CSRS LPRP LSRS DCR（not for TH2826） :RANGe <value> :AUTO ON (1) OFF (0) :Source MONitor :VAC ON (1) OFF (0) :IAC ON (1) OFF (0) :DEV1 :MODE ABSolute PERcent :REFerence <value> :FILL :IMPedance is used to set the function. Char ‘?’ is used to query the current function ◇97...
  • Page 106 TH2826 Operation manual Ver1.0 parameter. command syntax： FUNCtion:IMPedance <function> the following value can be selected for <function> CPD: set the function to Cp-D LPRP: set the function to Lp-Rp CPQ: set the function to Cp-Q LSD : set the function to Ls-D CPG: set the function to Cp-G LSQ: set the function to Ls-Q CPRP: set the function to Cp-Rp...
  • Page 107 TH2826 Operation manual Ver1.0 char ‘0’( 48) is equivalent to OFF. e.g.：WrtCmd(“FUNC:IMP:RANG:AUTO ON”); set the range to AUTO query syntax：FUNCtion:IMPedance:RANGe:AUTO？ return：<NR1><NL^END> :Source MONitor:VAC is used to set the monitor for voltage. Char ‘?’ can be used to query the state of the voltage monitor. Command syntax：...
  • Page 108 TH2826 Operation manual Ver1.0 ABSolute FUNCtion:DEV<n>:MODE PERCent ABSolute:absolute deviation display PERCent:percent deviation display OFF : the direct display for the test value <n>： char ‘1’(49): set the deviation mode of the main parameters char ‘2’(50):set the deviation mode of the secondary parameters e.g.：WrtCmd(“FUNC:DEV1:MODE ABS”);...

  • Page 109: 10List Subsystem Command Set

    TH2826 Operation manual Ver1.0 8.1.10LIST subsystem command set LIST subsystem command set is used to set the List Sweep, the sweep point, the sweep mode and limit comparison. Command hierarchical chart: LIST :FREQuency <sweep point>[,<sweep point> *] :VOLTage <sweep point>[,<sweep point> *] :CURRent <sweep point>[,<sweep point>...
  • Page 110 TH2826 Operation manual Ver1.0 ： VOLTage is used to clear the previous list sweep level and set the sweep leve. command syntax：LIST:VOLTage <value>[,<value> *] note：” *” shows that the sweep points are 10 points at most. <value> : NR1，NR2 or NR3 format e.g.：WrtCmd(“LIST:VOLT 1.5”) ;...
  • Page 111 TH2826 Operation manual Ver1.0 return：<NR3>[,<NR3> *]<NL^END> note:the DC bias voltage must be 0 V, 1.5 V and 2 V, or the return value will be “error”.. :BIAS:CURRent is used to clear the DC bias current in the list sweep points before and set the DC bias current.

  • Page 112: 11Aperture Subsystem Command Set

    TH2826 Operation manual Ver1.0 with the high limit and the low limit. OFF : don’t do the comparison. <low limit n>: NR1,NR2 or NR3 format，the low limit data in the line n <high limit n>: NR1,NR2 or NR3 format，the high limit data in the line n. e.g.：WrtCmd(“LIST:BAND1 A,10,20”) WrtCmd(“LIST:BAND3 OFF”) query syntax：LIST:BAND<n>?
  • Page 113 TH2826 Operation manual Ver1.0 Command hierarchical chart: TRIGger [:IMMediate] :SOURce INTernal EXTernal HOLD :DELay <value> :IMMediate is used to trigger the instrument only one time. command syntax： TRIGger[:IMMediate] e.g.：WrtCmd(“TRIG”); :SOURce is used to set the trigger source mode. Char ‘?’ can be used to query the current mode of the trigger source command syntax：...

  • Page 114: 13Fetch? Subsystem Command Set

    TH2826 Operation manual Ver1.0 command syntax： <value> TRIGger:DELay <value>: NR1,NR2 or NR3 format，0 to 60 s with 1ms as the resolution. MIN : set the delay time to 0 s. MAX:set the delay time to 60 s. e.g.：WrtCmd(“TRIG:DEL 5S”); set the delay time to 5 s. query syntax：TRIGger:DELay? return：<NR3><NL^END>...
  • Page 115 TH2826 Operation manual Ver1.0 <state>format: when the following value is selected，<state> will display the test state. The data format for <state> is ASCII code with 2 bits: SN（S：+/-，N：0 to 4） Note: when the <state> is -1,1 or 2, the test data is 9.9E37. when the <state > is 0,3 or 4, the test data will out of range.
  • Page 116 TH2826 Operation manual Ver1.0 Figure 8-2 ASCII format 2(for list sweep) <DATA A>,<DATA B>,<state> are the same to the ones above， < judgment > is described as follows：<input/output>format：display the comparison function for list sweep. When the comparison function for list sweep is OFF, <input/output> the output is 0. <input/output>data format is ASCII code with 2 bits: SN（S：+/-，N：0 to 1）...

  • Page 117: 14Correction Subsystem Command Set

    TH2826 Operation manual Ver1.0 state description lower good higher 8.1.14CORRection subsystem command set CORRection subsystem command set is used to set the correction function(short, open or load correction). Command hierarchical chart: ◇109...
  • Page 118 TH2826 Operation manual Ver1.0 CORRection :LENGth <value> :METHod SINGle MULTiple :OPEN :STATe ON (1) OFF (0) :SHORt :STATe ON (1) OFF (0) :LOAD :STATe ON (1) OFF (0) :TYPE CPRP CSRS LPRP LSRS :SPOT1 :STATe ON (1) OFF (0) :FREQuency <value> :OPEN :SHORt :LOAD...
  • Page 119 TH2826 Operation manual Ver1.0 length of the cable. command syntax：CORRection:LENGth <value> <value>:0, 1 or 2 with the unit m as the postfix. e.g.：WrtCmd(“CORR：LENG 1m”) :set the cable length to 1m. query syntax：CORRection:LENGth? return：<NR1><NL^END> :METHod is used to set the correction mode. Char ‘?’ can be used to query the correction mode.
  • Page 120 TH2826 Operation manual Ver1.0 return：<NR1><NL^END> :SHORt is used to perform the short correction data of 41 preset test points. command syntax：CORRection:SHORt e.g.：WrtCmd(“CORR:SHOR”) :SHORt:STATe is used to set the short correction function. Char ‘?’ is used to query the state of the short correction. Command syntax: CORRection:SHORt:STATe OFF char ‘1’(49):enable the short correction, which is equivalent to ON.
  • Page 121 TH2826 Operation manual Ver1.0 CPG: set the function to Cp-G LSQ: set the function to Ls-Q CPRP: set the function to Cp-Rp LSRS: set the function to Ls-Rs CSD: set the function to Cs-D RX: set the function to R-X CSQ: set the function to Cs-Q ZTD : set the function to Z-θ°...
  • Page 122 TH2826 Operation manual Ver1.0 <value> : NR1,NR2 or NR3 format with HZ, KHZ and MHZ as the shortfix. <n>: 1:frequency point 1 2:frequency point 2 3:frequency point 3 e.g.： WrtCmd(“CORR:SPOT1:FREQ 2KHZ”) ;set frequency 1 to 2 kHz note：the range of <value> must be 20Hz to 200kHz, or the return value will be “error”. query syntax：CORRection:SPOT<n>:FREQuency? return：<NR3><NL^END>...
  • Page 123 TH2826 Operation manual Ver1.0 1:frequency point 1 2:frequency point 2 3:frequency point 3 <REF.A> : NR1，NR2 or NR3 format, is the standard reference value for the main parameter <REF.B> : NR1，NR2 or NR3 format, is the standard reference value for the secondary parameter e.g.:WrtCmd(“CORR:SPOT1:LAOD:STAN 100.7,0.0002”) query syntax：CORRection:SPOT<n>:LOAD:STANdard?

  • Page 124: 15Comparator Subsystem Command Set

    TH2826 Operation manual Ver1.0 <load1/2/3 B>:NR3 format, the load correction data of the secondary parameter for frequency point 1/2/3. 8.1.15COMParator subsystem command set COMParator subsystem command set is used to set the BIN comparator, including setting the compator ON/OFF, setting the limit list. Command hierarchical chart: ◇116...
  • Page 125 TH2826 Operation manual Ver1.0 COMParator [:STATe] ON (1) OFF (0) :MODE Absolute TOLerance Percent TOLerance SEQuence :TOLerance :NOMinal <value> :BIN<n> <low limit>,<high limit> :SEQuence :BIN <BIN1 low limit>,<BIN1 high limit>, <BIN2 high limit>,<BIN3 high limit>, …… ,<BINn high limit> :Secondary LIMit <low limit>,<high limit> :Auxiliary BIN ON (1) OFF (0)
  • Page 126 TH2826 Operation manual Ver1.0 command syntax： ATOLerance COMParator:MODE PTOLerance SEQuence ATOLerance:set the absolute error mode PTOLerance:set the relative error mode SEQuence:set sequence mode e.g.：WrtCmd(“COMP:MODE ATOL”) query syntax：COMParator:MODE? return： ATOL PTOL <NL^END> :TOLerance:NOMinal is used to set the standard value of the error mode for the comparator(this mode is effective only when the limit mode is error mode.).
  • Page 127 TH2826 Operation manual Ver1.0 :SEQuence:BIN is used to set the high limit and the low limit of the comparator on the sequence mode(this function is effective only when the limit mode is set to sequence mode.). command syntax：COMParator:SEQuence:BIN <BIN1 low limit>,<BIN1 high limit>, <BIN2 high limit>,…, <BINn high limit>...
  • Page 128 TH2826 Operation manual Ver1.0 char ‘1’(49) is equivalent to ON . e.g.: WrtCmd(“COMP:ABIN ON”) query syntax: COMParator:Auxiliary BIN？ return：<NR1><NL^END> :SWAP is used to set the swap comparator mode ON/OFF of the main parameter and the secondary parameter. e.g.:function:Cp-D; SWAP mode: ON; the function will be changed to D-Cp.At the same time, the limit setting on BIN 1 to 9 is the high limit and the low limit for D, the setting of BIN 2 is the Cp limit.

  • Page 129: 16Mass Memory Subsystem Command Set

    TH2826 Operation manual Ver1.0 e.g.：WrtCmd(“COMP:BIN:COUN ON”) query syntax：COMParator:BIN:COUNt[STATe]? return：<NR1><NL^END> :BIN:COUNt:DATA? is used to query the BIN count result. query BIN：COMParator:BIN:COUNt:DATA? return：<BIN1 count>,<BIN2 count>,…,<BIN9 count>,<OUT OF BIN count>, <AUX BIN count><NL^END> <BIN1-9 count>:NR1 format, is the count result of BIN 1 to 9. <OUT OF BIN count>: NR1 format，is the count result of over the standard.
  • Page 130 TH2826 Operation manual Ver1.0 ●*RST ●*TRG ●*IDN ●*TST ●*ESE ●*SRE ●*ESR ●*STB ●*OPC ●*CLS *RST is used to reset the instrument. command syntax：*RST e.g.：WrtCmd(“*RST”); *TRG is used to trigger the measurement instrument, and transmit the test result to the output buffer. command syntax：*TRG e.g.：WrtCmd(“*TRG”);...
  • Page 131 TH2826 Operation manual Ver1.0 Execution Error(EXE) Bit Device Dependent Error(DDE) Query Error(QYE) Bit Request Control(RQC) Bit Operation Complete(OPC) Bit query syntax：*ESE? return：<value><NL^END> e.g.：WrtCmd(“*ESE?”); *SRE （Service Request Enable command） is used to set the open bits of the status byte register. This query command returns the current setting status of the status byte register. command syntax：*SRE<value>...
  • Page 132 TH2826 Operation manual Ver1.0 Power On(PON) Bit User Request(URQ) Bit Command Error(EME) Bit Execution Error(EXE) Bit Device Dependent Error(DDE) Bit Query Error(QYE) Bit Request Control(RQC) Bit Operation Complete(OPC) Bit WrtCmd(“*ESR?”); ： *STB? reads the value of the service status register. It has no effect to the value of the service status register.

  • Page 133: Chapter 9 The Description For Handler (Optional)

    TH2826 Operation manual Ver1.0 Chapter 9 The description for Handler (optional) This chapter will show you the Handler interface On TH2826. The TH2826 provides the Handler interface for you. The interface is mainly used for the output of the sorted result. The interface offers the communication signal and the signal for the output of the sorted result.
  • Page 134 TH2826 Operation manual Ver1.0 /ALARM(the circuit interruption) Control input signal /EXT.TRIG(external trigger signal) , /Keylock(the key lock). The signal distribution for the pins is described in table 9-2. Table 9-2 The signal distribution for the pins signal name description /BIN1 /BIN2 /BIN3 /BIN4...
  • Page 135 TH2826 Operation manual Ver1.0 is less than the low limit in BIN1 to BIN9. /SREJ The secondary parameter is not good: the test result is not in the range of the high limit and the low limit. Not connect. /KEY LOCK When this single is effective, the keys in the front panel are locked.
  • Page 136 TH2826 Operation manual Ver1.0 PHI（OUT） The main parameter BIN 1 BIN 2 BIN 3 BIN 4 SREJ（AUX） SREJ（AUX） BIN 5 BIN 6 BIN 7 BIN 8 BIN 9 PLO（OUT） The secondary parameter Figure 9-1 the /PHI，/PLO，/SREJ signal distribution for BIN comparison ◇128...
  • Page 137 TH2826 Operation manual Ver1.0 /BIN 1 /PHI /BIN 2 /PLO /BIN 3 /SREJ /BIN 4 /BIN 5 /BIN 6 /BIN 7 /KEY LOC K /BIN 8 /BIN 9 EXT.DCV1 /OUT EXT.DCV1 /AUX /ALAR M /EXT TR IG /INDEX /EXT TR IG /EOM EXT.DCV2 COM2...
  • Page 138 TH2826 Operation manual Ver1.0 delay 1 measurement 2comparison 3display time time time time time the maximum minimum T1: trigger pulse-width T2:delay time 200us Display time T3:the trigger waiting time after /EOM 200us output 1. for the measurement time, please refer to the operation manual; 2.
  • Page 139 TH2826 Operation manual Ver1.0 9-4). /AUX shows PASS/FAIL judgement. When a sweep test is finished, these signal will be the output signal. Control /INDEX(analog test finished), /EOM(the test ended). The timing is below when /INDEX and /EOM are effective： SEQ sweep mode： /INDEX is defined as the effective signal when the last sweep point of the analog test is finished.
  • Page 140 TH2826 Operation manual Ver1.0 /INDEX SEQ：When the analog test of the last sweep point is finished and the UNKNOWN terminal can be connected to another DUT, /INDEX is effective. But the comparison signal is effective until /EOM is effective. STEP：When the analog test of the last sweep point is finished, /INDEX is effective.

  • Page 141: 2Electrical Feature

    TH2826 Operation manual Ver1.0 Note :(1)The setting time includes the correction ON/OFF time. (2)The comparison and display time is 4.5ms approximately. Figure 9-5 the time counting 9.2.2Electrical feature As it is shown above, the signal definition for the comparison and the list sweep ◇133...

  • Page 142: 3Handler Interface Board Circuit

    TH2826 Operation manual Ver1.0 comparison are different. But the electrical feature is same. So the description can be applied to BIN comparison and list sweep comparison. DC isolation output: the DC isolation output (pin1 to pin16) generates the isolation by the optoelectronic coupler with the collector open.
  • Page 143 TH2826 Operation manual Ver1.0 EXT.DCV1 PULL-UP RESISTOR /OUT /BIN1 /BIN8 /BIN9 /AUX /PHI /PLO /SREJ COM1 TH2819A Common Figure 9-6 the output circuit for the comparison result The output circuit for control signal is shown in the figure 9-7 below. ◇135...
  • Page 144 TH2826 Operation manual Ver1.0 EXT.DCV2 PULL-UP RESISTOR /ALARM /INDEX /EOM COM2 TH2819A Common Figure 9-7 the output circuit for control signal The input circuit for control signal is shown in the figure 9-8 below. ◇136...
  • Page 145 TH2826 Operation manual Ver1.0 EXT.DCV2 PULL-UP RESISTOR /EXT.TRG /KEYLOCK Figure 9-8 the input circuit for control signal ◇137...

  • Page 146: 4Operation

    TH2826 Operation manual Ver1.0 9.2.4operation Before you use the HANDLER function, you should ensure that your instrument has install the HANDLER interface board.The following procedure will show you how to use the interface comparison and the list sweep comparison. The procedure for comparison setting : (1) Press the softkey [LIMIT TABLE].

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