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ET35 Series Digital Bridges（LCR）Operating Instructions

Hangzhou Zhongchuang Electron Co., Ltd.

The page is shown below

Select [Customized] display

3.1.3 Measurement function

Two parameters of the impedance component can be simultaneously measured in

each cycle by ET35: main parameter and auxiliary parameter.

Main parameters



| Z | (impedance module)



| Y | (admittance module)



G (conductance)



Ls, Lp (inductance)



Cs, Cp (capacitance)



Rs, (resistance)

Summary of Contents for ET3501

Page 1: ...ET3501 3502 3503 3505 3510 Operating Instructions for LCR digital electric bridge Hangzhou Zhongchuang Electronics Co Ltd...

Page 2: ...g Electron Co Ltd Adress NO 3 Kangle Road Gongshu District Hangzhou Chiaa Postcode 310015 Telephone 0086 571 56861333 Fax 0086 571 56861355 Website http www cnheader com http www easttester com QQ 285...

Page 3: ...at 8 III Basic measurement 13 3 1 Measurement Setup page 13 3 2 Correction page 27 3 3 Limit table setup display 45 3 4 List Sweep Setup display 53 IV System configuration 57 4 1 System configuration...

Page 4: ...strument has been carefully designed to reduce the noise jamming caused by AC power supply input please use it in low noise environments if it cannot be avoided install the power supply filter Warning...

Page 5: ...of DUT to ensure the proper contact of DUT with the fixture Connect the test fixture or test cable to the four test ends of the front panel of the instrument Hforce Hsense Lsense and Lforce For the D...

Page 6: ...d a half digits of measurement resolution Internal 2V of DC bias voltage 0 05 basic measurement accuracy automatic manual external trigger and bus trigger measurement dual measurement display measurem...

Page 7: ...asurement conditions and parameters There is a mark on the left of each function key 4 Shortcut keys There are six shortcut keys which are used to quickly select the measurement conditions and paramet...

Page 8: ...original video image The cursor can only move between fields 7 Imput keys Input keys for inputting the digital data to ET35 Enter key contains the digits 0 to 9 decimal point plus minus enter key and...

Page 9: ...an external PC 3 HANDLER interface connector This interface can classify components with the automatic machine on the production line 4 Ethernet interface The interface connected to LAN Local Area Ne...

Page 10: ...rt of the 7 inch color screen of ET35 Screen display 1 Display area It states the name on the display screen 2 Function key area It shows the mark of the function key as corresponding to the field 3 M...

Page 11: ...field will be reversed The cursor can move between fields For some common parameter settings use shortcut keys to select the desired field 3 The mark of the function key pointed at by the cursor will...

Page 12: ...ut input the number and select with the function key 2 BIN Number Display When you press the Display Format key and the BIN Number Display function key the page of BIN Number display will be shown BIN...

Page 13: ...erface is required The above mentioned setting of limits for BIN classification can be done with the Meas Setup on the page of limit list Therefore users to compare the filed only need set the compara...

Page 14: ...4 Use the function key to turn the comparator on or off Steps of clearing the counter 1 Press the Display Format key 2 Press BIN Count function key 3 Use the arrow key to select the Count 4 Press the...

Page 15: ...very time ET35 triggers all the sweep points are automatically swept In stepping mode every time ET35 triggers the sweep points will be swept individually The steps of setting the Sweep mode 1 Press t...

Page 16: ...d to configure all of the following measurement control functions test function function option of internal and external DC bias bias test range range test frequency frequency internal DC offset value...

Page 17: ...panel ET35 conducts a test When the triggering method is set to EXT mode every time HANDLER interface receives a positive pulse ET35 conducts one measurement When the Triggering method is set to BUS...

Page 18: ...onversely the slower the speed is the higher the accuracy is The measurement speed can be set in the pages of component measurement and measurement setup The steps of setting measurement time 1 Press...

Page 19: ...below Select Customized display 3 1 3 Measurement function Two parameters of the impedance component can be simultaneously measured in each cycle by ET35 main parameter and auxiliary parameter Main p...

Page 20: ...ction can be set in the pages of component measurement and measurement setup Steps of setting the measurement function 1 Press the Meas Setup key 2 Use the arrow key to select the Function and press t...

Page 21: ...k 100k and 300k The measurement range can be set in the pages of component measurement and measurement setup The steps of setting the measurement range 1 Press the Meas Setup key 2 Use the arrow key t...

Page 22: ...y 1 Press the Meas Setup key 2 Use the arrow key to select Frequency and press the Enter key 3 Use the numeric input key to input the measurement frequency When using the numeric input key to input da...

Page 23: ...n in the page of measurement setup When the constant voltage level or constant current level measurement is conducted a sign will appear after the current level value ET35 has two ways to set the meas...

Page 24: ...rent value when the measured end is short circuited and the DC bias voltage is the output voltage when the measured end is open circuited The DC bias can be set in the pages of component measurement a...

Page 25: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 22...

Page 26: ...applied is preferable Usually bias is used for capacitor If the bias voltage is used for low impedance devices the measurements will be inaccurate 3 1 8 Automatic level control function The automatic...

Page 27: ...List sweep function is used the set delay time at each sweep measurement point will be delayed The setting range of the trigger delay time 0s 10s with 1ms of stepping When the instrument is used in au...

Page 28: ...30 and 100 When measuring the inductance in order to compare with the data from other types of testers we must ensure the same value of output resistance The steps of setting the output resistance 1...

Page 29: ...ement value of the DUT and the set reference value divided by the reference value in the form of percentage The percentage deviation is calculated in accordance with the following formula 100 Y Y X De...

Page 30: ...r correction page It allows the user to correct open short load to compensate for any errors due to interference factors such as stray admittance and residual impedance In addition users can also choo...

Page 31: ...quency the measurement value and reference value at the specified frequency point for open circuit short circuit and load correction reference A open A short circuit A load A reference B open B short...

Page 32: ...for the currently set frequency The steps of open circuit correction based on all frequency points 1 Press the Meas Setup key 2 Press the Correction function key 3 Use the arrow key to select Open and...

Page 33: ...r the number of measuring point and press the Enter key to confirm 5 Use the arrow key to select Frequency and press the Enter key 6 Use the numeric key to input frequency and then press the unit func...

Page 34: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 31 the specified point The page is shown below Specified frequency points Frequency of the specified point...

Page 35: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 32 Choose open circuit correction Course of open circuit correction...

Page 36: ...tion to the following 48 frequencies the instrument will use the interpolation method to calculate the data of short circuit correction for different measurement range according to the data The 48 fix...

Page 37: ...easuring the Cancel function key is displayed Press to cancel the short circuit correction 6 Press the On function key to initiate the short circuit correction in the continuous measurement Function k...

Page 38: ...d press the Enter key to confirm 5 Use the arrow key to select Frequency and press the Enter key 6 Use the numeric key to input frequency and then press the unit function key to enter 7 Short connect...

Page 39: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 36 The page is shown below The specified frequency point Frequency of the specified frequency point...

Page 40: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 37 Enter 100 and press the KHz function key and the page is shown below Select short circuit correction...

Page 41: ...ction key 3 Use the arrow key to select the Function and press the Enter key 4 Use the function key to select the object to be measured 5 Use the arrow key to select Ref A and press the Enter key 6 Us...

Page 42: ...ctions Hangzhou Zhongchuang Electron Co Ltd 39 The page is shown below Choose the measurement function required by the user such as the Rs Xs measurement function Use the arrow key to select Ref A and...

Page 43: ...LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 40 Use the arrow key to select Ref B and press the Enter key and the page is shown below The specified frequency point Frequency of the...

Page 44: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 41 Enter 100 and press the KHz function key and the page is shown below...

Page 45: ...LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 42 To conduct load correction After the load correction ends the measurement result of load correction is shown after Load A and Load B...

Page 46: ...ns Hangzhou Zhongchuang Electron Co Ltd 43 Use the arrow key to select Load and press the Enter key and the page is shown below Press the On function key and conduct load correction for the set freque...

Page 47: ...h ET35 can choose from four lengths of cable 0m 1m 2m and 4m The steps of selecting the cable length 1 Press the Meas Setup key 2 Press the Correction function key 3 Use the arrow key to select Cable...

Page 48: ...liary levels subsidiary comparison function limit mode mode comparison function compare lower limit of each level lower limit upper limit of each level upper limit The built in comparison function can...

Page 49: ...ap parameters function changes the measured parameters to D Cp Eight pairs of comparison limits can be set for D and one pair for Cp The steps of setting the swap parameters function 1 Press the Meas...

Page 50: ...e Note When using the tolerance mode the user must assign the minimum limit range to bin 1 the second narrowest range to bin2 and so on and finally assigned the widest range to the last bin If the ran...

Page 51: ...nal value of the tolerance mode When the tolerance mode is used as the limit mode of the main parameter the user must configure the nominal value Even if the limit mode of the main parameter is in seq...

Page 52: ...p to nine levels In addition when the main parameter is within the limits but the auxiliary parameter outside the limits the DUT can be classified into one auxiliary level The steps of turning on off...

Page 53: ...esult of the main parameters The DUT with the auxiliary parameter outside the auxiliary parameter limits will be classified into OUT OF BIN Turn off the auxiliary level Assign the auxiliary parameter...

Page 54: ...creen will display the warning message Warning incorrect upper lower limit If the lower and upper limits are not corrected then the result of BIN will be zero and the comparator will turn to the next...

Page 55: ...After the lower limit of the auxiliary parameter is entered the cursor will automatically jump to the 2nd upper limit 8 Enter the upper limit of the auxiliary parameter 9 Enter the lower limit of lev...

Page 56: ...shown below 3 4 List Sweep Setup display Press the Meas Setup key then press the List sweep function key to enter into the List Sweep Setup page The List Sweep function of ET35 can automatically sweep...

Page 57: ...n scan the frequency signal level or DC bias of up to 10 points The List sweep function supports two Sweep modes sequential mode and stepping mode In the sequential mode once ET35 is triggered it will...

Page 58: ...e Meas Setup key 2 Press the List sweep function key 3 Use the arrow key to select the sweep parameters and press the Enter key 4 Use the function key to select the sweep parameters the users needs Fu...

Page 59: ...arison as required by the user function keys Parameters A Parameter B and off 5 Use the arrow key to select lower limit 6 Enter the lower limit 7 Use the arrow key to select upper limit 8 Enter the up...

Page 60: ...n Co Ltd 57 The page is shown below Set the limit parameter Set the upper limit and lower limit IV System configuration 4 1 System configuration display Press the System key to open the system configu...

Page 61: ...e information cannot be changed Information on this page can be set as follows bias current interface HANDLER interface Note If ET35 is not configured with bias current interface the bias current inte...

Page 62: ...e system configuration page displays the status of LAN and GPIB interface the user can place the cursor on the right field to configure the following controls voice prompts system time GPIB address DH...

Page 63: ...ET35 has a built in clock The steps of configuring the system time 1 Press the System key 2 Press the System Config function key 3 Use the arrow key to select System Time and press the Enter key 4 Use...

Page 64: ...rection has been done at the designated point by the user for the instrument the limit test for the DUT fails or the comparator has been classified by the DUT into OUT OF BIN AUX BIN DUT passes the li...

Page 65: ...tructions Hangzhou Zhongchuang Electron Co Ltd 62 1 2 4 Configuring GPIB address The GPIB address of ET35 must be configured before it is controlled by the GPIB cammand issued from the external contro...

Page 66: ...nction key 3 Use the arrow key to select GPIB Address and press the Enter key 4 Use numeric keys to input the value within the range from 0 to 30 The page is shown below 4 2 5 Configuring Baud rate Th...

Page 67: ...mask and gateway can be manually configured After the IP address is automatically obtained refresh the interface and check the following areas inn the system configuration page to view the address sub...

Page 68: ...Enter key 4 Press the Off function key 5 Use the arrow key to select IP Address and press the Enter key 6 Use numeric keys to enter the IP address For example 192 168 10 1 and press the Enter key 7 Us...

Page 69: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 66 The page is shown below Set IP Set subnet mask...

Page 70: ...ht the greater the value is the greater the intensity of the backlight is The steps of setting the backlight 1 Press System 2 Press the System Config function key 3 Use the arrow key to select Backlig...

Page 71: ...ry to perform startup test after the power is on STARTUP TEST can help detect failures of the equipment and help the user to find the problem The steps of setting STARTUP TEST 1 Press System 2 Press t...

Page 72: ...unctions of the front panel and board are normal If the startup test function is enabled in the system configuration page then it will implement startup test when the power is on It will return to the...

Page 73: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 70 The self test is shown below Self test completed...

Page 74: ...acity of the insturment The steps of system update 1 Put the system upgrade file ET35 Vx xx xxxx xxx upt into the file folder with the root directory updatefile in the U disc 2 Insert U disk into the...

Page 75: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 72 Updating Update completed...

Page 76: ...e instrument are corrected with the Self correction function so as to enhance the accuracy of the instrument The steps of Self correction 1 Press the System key 2 Press the Self corre function key to...

Page 77: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 74...

Page 78: ...ave the snapshot of the screen to the USB memory File folder file structure on the USB memory To save the information to the USB memory the predefined plan will be used to organize the file folder and...

Page 79: ...to the internal memeory The steps of saving the configuration of the instrument to an existing file in the internal memeory 1 Press the Save key 2 Press the up and down arrow keys to select the target...

Page 80: ...the target file 4 Press the Enter key to save or press Edit to edit the comment and press Enter to save 5 Prompt success The steps of saving the configuration of the instrument to a new file on the US...

Page 81: ...deleting the configuration file of the instrument from the internal memory 1 Press the Save or Recall key 2 Select the profile to be deleted with the up and down arrow keys 3 Press the Delete function...

Page 82: ...after the decimal point Status uses one of the following status values to represent the state of the measurement results 0 Measurement completed successfully 1 Overload 3 Signal beyond the permitted...

Page 83: ...ts of the screen from ET35 as png file to the USB memeory Then the users can download the saved files to the application programs on the computer The steps of saving the snapshots of the screen on the...

Page 84: ...peed Fast 50times s 20ms Medium 10times s 100ms Slow 1 25times s 800ms Custom measuring speed Between 0 5times s 200times s Can be set LCR parameter range Cp Cs 0 001000pF 99 9999F Lp Ls 0 001000nH 99...

Page 85: ...ed frequency point List scanning 10 point list scanning testing Storage device Internal USB storage device Interface GPIB LAN RS232 USB Host USB Device Handler 6 1 1 Measurement function ET35 series d...

Page 86: ...ge Internal Range 2V 2V Resolution 1mV Accuracy 2 5mV External Range 60V 60V Resolution Depending on external input Accuracy Depending on external input 4 Level monitoring Level monitoring includs thr...

Page 87: ...cycles contained in the set measurement time N is 1 when it is actually less than 1 T is a measurement signal cycle Mode of measurement time Frequency 10Hz 100Hz 1kHz 10kHz 100kHz 1MHz Slow 800ms 800...

Page 88: ...limit 100ms 20ms 20ms 20ms 20ms 20ms 6 1 4 Measurement display range Parameter Measurement display range Cp Cs 0 001000pF 99 9999F Lp Ls 0 001000nH 99 9999kH Rp Rs Z Xs 0 001000m 999 999M G B Y 0 0010...

Page 89: ...instrument works within the range of AUTO to select the correct measurement range Accuracy of Z Y L C R X G and B the accuracy of L C X and B is applied when Dx 0 1 and the accuracy of R and G is appl...

Page 90: ...R Lx X f 2 x Rse relative accuracy of Rs Dx D measured Xx X measured De relative accuracy of D f test frequency Hz Cx C F measured Lx L H measured Basic accuracy The basic accuracy of the instrument...

Page 91: ...2 0 5 0 2 1 3 When the test level is smaller than 1 5V and larger than 0 5V see the table above for the basic accuracy in other circumstances it must be multiplied by the level correction factor See t...

Page 92: ...c 1 T is the room temperature Correction factor Kf Measurement range Frequency Hz 10 to 100 100 to 100k 100k to 300k 300k to 1M 10k 0 0 0 01 0 01 3k 30k 0 01 0 00 0 02 0 02 1k 100k 0 02 0 01 0 03 0 03...

Page 93: ...ET35 Series Digital Bridges LCR Operating Instructions Hangzhou Zhongchuang Electron Co Ltd 90...

Page 94: ...nal test signal current DC bias signal 3 Triggering mode Sequential mode Once triggered the device will be swept at all sweep points EOM INDEX at the HANDLER interface will output for one time Steppin...

Page 95: ...plement the automatic recall function 3 key lock function Local mode can lock the keys on the front panel press this key in the remote mode to exit the remote mode 4 GPIB 24 pin D Sub port D 24 type a...

Page 96: ...circuit bar 6 2 2 Optional accessories GPIB cable RS232 serial port line USB cable 2m 4m test cable SMD components t testing fixture LCR testing pen 4 lines SMT components testing fixture Kelvin testi...

Page 97: ...ion 6 4 1 Test conditions maintaining the temperature to 20 2 C maintaining the humidity to 50 20 preheat the instrument for 30 minutes before testing 6 4 2 Test tools No Notes 1 Standard resistor 10...

Page 98: ...1V 1 Mount the test fixture on the output port of ET35 clamp the two probes of the multimeter with its two clips 2 The six and a half digits are set to ACV mode 3 Operating ET35 the frequency is 1kHz...

Page 99: ...re on the output port of ET35 2 Conduct the open circuit and short circuit corrections before the measurement 3 Operating ET35 the frequency is 1kHz the level 1V internal bias the bias voltage is 0V i...

Page 100: ...each sweep point and pass fail of the comparison results INDEX simulation measurement completed EOM primary measurement completed Alarm momentary power failure detection notification Input signal opto...

Page 101: ...xternal trigger ET35 is triggered by the rising edge pulse signal imposed on the pin 14 15 EXT DCV2 External DC voltage 2 DC supply pin of the photocoupling signal in the instrument EXT TRIG KeyLock A...

Page 102: ...ALARM When the power failure occurs ALARM is valid 30 INDEX When the simulation measurement is completed and the test end of ET35 can be connected to the next DUT INDEX signal is valid But the compar...

Page 103: ...comparison function It is defined as follows Comparison output signal BIN 1 BIN 9 and AUX respectively represents the IN OUT test results from sweep point 1 to 10 OUT represents whether the DUT test a...

Page 104: ...limit Sweep point 9 exceeds the limit any sweep point exceeds the limit Sweep point 10 exceeds the limit 12 13 EXT TRIG External trigger when the triggering mode is set to EXT TRIG external trigger E...

Page 105: ...omparison results are valid 32 33 COM2 Reference ground used by the external power supply EXTV2 34 35 36 COM1 Reference ground used by the external power supply EXTV1 Electrical characteristics DC iso...

Page 106: ...rimary and secondary measurements Capacitance C Figure of series Figure of parallel Formula for series Formula for parallel 1 2 D Cp Cs 1 2 D Cs Cp Inductance L Figure of series Figure of parallel For...

Page 107: ...RX Zp 2 2 B G Yp cos Z Rs cos Y Gp Formula to calculate the capacitance C Capacitance measures the number of electronic charges stored between the two terminals Series capacitance Cs Parallel capacit...

Page 108: ...of the degree of ease for AC current to flow through the two terminals Impedance Z admittance Y Formula Y I E Z 1 Z E I Y 1 C j R L j R jX R Zs L j G C j G jB G Yp 2 2 X R Zs 2 2 B G GB Ys 2 2 X R RX...

Page 109: ...a to calculate the phase angle Phase angle refers to the phase of measured impedance Z admittance Y quality factor Q and dissipation factor D Phase angle C j R L j R jX R Zs L j G C j G jB G Yp D Q 1...

Page 110: ...Electron Co Ltd 107 Short circuit measurement Ls j Rs Zs Correction model is as follows Correction formula Yo Zs Zxm Zs Zxm Zdut 1 Dut impedance of DUT Zxm impedance value measured by the instrument Y...

Page 111: ...ge The measuring instrument should be stored in a ventilated room with a temperature of 5 C 40 C and a relative humidity of 15 to 85 There should be no harmful impurities in the air to corrode the ins...

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