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EUCOL U2816A Operation Manual

Precision lcr meter
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Summary of Contents for EUCOL U2816A

  • Page 1 U2816A Precision LCR meter : : No.1, Ziyang Road, Tianning District, Changzhou, Jiangsu （ （ ） ） （ ） （ （ ） ） （ ）...

  • Page 2: Table Of Contents

    U2816A Operation Manual Contents Contents Chapter 1  Out of Box Audit ......................1  1.1  To Inspect the package ....................1  1.2  Power connection ......................1  1.3  Fuse ..........................1  1.4  Environment ......................... 2  1.5  Use of Test Fixture ....................... 2 ...
  • Page 3 U2816A Operation Manual Contents 3.4.2  Auto level control function ................15  3.4.3  Bias current isolation function ................16  3.4.4  Average ......................16  3.4.5  Level monitor function ..................17  3.4.6  Delay time ......................17  3.4.7  Output impedance ....................18  3.4.8  Deviation test function ..................18 ...
  • Page 4 Correct connection of DUT ..................43  5.3  Eliminate the influence of stray impedance ............... 44  5.4  Operation example for testing inductance with U2816A ........... 46  5.5  Operation example of testing capacitance by multi-frequency list sweep ....47  5.6  Operation example of load correction ................ 50 ...
  • Page 5 U2816A Operation Manual Contents 6.5  Electromagnetic compatibility ................... 60  6.6  Performance test ......................60  6.6.1  Working condition ..................60  6.6.2  The used instruments and devices ............60  6.6.3  Function check ....................61  6.6.4  Test signal level .................... 61  6.6.5  Frequency ....................... 61 ...

  • Page 6: Out Of Box Audit

    U2816A Operation Manual Chapter 1 Out of Box Audit Chapter 1 Out of Box Audit When you receive the instrument, some inspections are necessary, and the condition must be understood and available before installing the instrument. 1.1 To Inspect the package Inspect the shipping container for damage after unpacking it.

  • Page 7: Environment

    U2816A Operation Manual Chapter 1 Out of Box Audit 1.4 Environment 1) Please do not operate the instrument in the place that is vibrative, dusty, under direct sunlight or where there is corrosive air. 2) The normal working temperature is 0℃～40℃, relative humidity ≤75%, so the instrument should be used under above condition to guarantee the accuracy.

  • Page 8: Other Features

    U2816A Operation Manual Chapter 1 Out of Box Audit 1.7 Other features 1) Power: consumption power≤60VA. 2) Dimension (W*H*D): 350mm*120mm*360mm 3) Weight: About 3.5kg.

  • Page 9: Chapter 2 Introduction

    U2816A Operation Manual Chapter 2 Introduction Chapter 2 Introduction In this chapter, the basic operation features of U2816A are described. Please read the content carefully before using U2816A instruments, thus you can learn the operation of U2816A. 2.1 Introduction to front panel Figure 2-1 shows the front panel of U2816A.
  • Page 10 U2816A Operation Manual Chapter 2 Introduction 11) Numerical keys These keys are used to input data to the instrument. The key consists of numerical keys [0] to [9], decimal point [.] and [+/-] key. 12) [←] BACKSPACE key is used delete the last numeric of the input value.

  • Page 11: Introduction To Rear Panel

    Chapter 2 Introduction 24) POWER Power switch 2.2 Introduction to rear panel Figure 2-2 shows the rear panel of U2816A. Figure 2-2 Rear panel 1) SCANNER interface (Option) Control the transformer scanning box through SCANNER interface. 2) External trigger interface Handler interface is used to realize the sorting output of test results.

  • Page 12: Introduction To Display Zone

    The ground terminal is connected with instrument casing, being available for protecting or shielding ground connection. 2.3 Introduction to display zone U2816A applies a 65k, 5-inch TFT display. The display screen is divided into the following zones: Figure 2-3 display zones 1) Logo Display the logo of the company.

  • Page 13: Main Menu Keys And Corresponding Displayed

    U2816A Operation Manual Chapter 2 Introduction Data recording status. DC bias is opened. 6) Help In this zone, information about system and user data input is displayed. 7) Test result/ condition display zone In this zone, test result information and current condition are displayed.

  • Page 14: Basic Operation

    U2816A Operation Manual Chapter 2 Introduction 2.5 Basic Operation Basic operation of U2816A is as follows: Use menu keys ([MEAS DISP], [MEAS SETUP], [SYSTEM]) and soft keys to select the desired page. Use cursor keys ([←][→]) to move the cursor to the desired zone. When the cursor moves to a specified zone, the zone will become reverse expression.

  • Page 15: Chapter 3 Introduction To [Meas Disp]

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] Chapter 3 Introduction to [MEAS DISP] 3.1 <MEAS DISPLAY> Press [MEAS DISP], the <MEAS DISPLAY> page will be displayed on screen as shown in the following figure. On this page, the test result is displayed in right area. The measurement control...

  • Page 16: Test Function

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] 3.1.1 Test function In a measurement period, U2816A can test four parameters for an impedance component. Parameters that can be tested are as follows: Primary parameters |Z| (Module of impedance) |Y| (Module of admittance)

  • Page 17: Test Range

    LCR component. U2816A has 10 AC measurement ranges: 1Ω, 10Ω,30Ω, 100Ω, 300Ω, 1kΩ, 3kΩ, 10kΩ, 100kΩ, 1MΩ. U2816A has 10 DCR measurement ranges: 1Ω, 10Ω, 30Ω, 100Ω, 300Ω, 1kΩ, 3kΩ, 10kΩ, 100kΩ, 1MΩ. Operation steps for setting test range:...

  • Page 18: Test Frequency

    DECR- The soft key is used to decrease the range under HOLD mode. 2) Use soft keys to set measurement range. 3.1.3 Test frequency The measurement range of U2816A ranges from 20Hz to 200kHz with an increase or decrease of 0.01Hz. Operation steps for setting test frequency: U2816A provides two methods to set measurement frequency.

  • Page 19: Test Level

    U2816A provides internal DC bias voltage from -10V to +10V. Operation steps for setting DC bias: U2816A provides two methods to set the DC bias. The first one is to use soft keys, while the second one is to input data by numeric keys.

  • Page 20: Test Speed

    The test result of U2816A is displayed as 6 floating-point digits. Decimal point lock function can make U2816A output the test result in fixed way. Meanwhile this function can change the displayed count of test result. This displayed result can be selected to be shown in large character or small character.
  • Page 21 U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] D.P. AUTO D.P.FIX A D.P. FIX B FULL SCREEN DISP OFF ON 2) Press D.P. AUTO to reset the decimal position of the primary or the secondary parameter test result to its default setting.

  • Page 22: Bin Disp

    Bin limit value (HIGH/ LOW) 3.2.1 Comparator function U2816A has an inserted compare function which can divide DUT to up to 10 bins (from BIN1 to BIN9 and BIN OUT). Users can set 9 pairs of primary parameter limit and one pair of secondary bin limit. If the primary parameter of DUT is within the range of the bin limit but the secondary parameter is outside of the bin limit, the DUT will be sorted into the auxiliary bin.

  • Page 23: Bin

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] 3.2.2 BIN This zone shows the bin number of the limit list. 3.2.3 HIGH/LOW This zone shows the high and the low limits of the limit list. 3.2.4 COUNT This zone shows the count value of the current bin.

  • Page 24: Sweep Mode

    <LIST SETUP>. 3.3.1 Sweep mode The list sweep function of U2816A can make automatic sweep test for up to 20 points’ test frequencies, test levels or DC bias. Two sweep modes are available on U2816A: SEQ and STEP.

  • Page 25: Fun(Parameter)

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] STP FAIL 2) Press MODE to set the sweep mode as sequential/single step sweep test mode. 3) Press STP FAIL to set the stop sweep mode as continue/pause/retry/stop when the test results is out of limit value.

  • Page 26: Trigger Mode

    There are 4 trigger modes on U2816A: INT, MAN, EXT and DUT. When the trigger mode is set as INT, U2816A will make sequential and repeated tests. When the trigger mode is set as MAN, press [TRIG] once, U2816A will make one...

  • Page 27: Auto Level Control Function

    ——————————————————————————————————————— Note: In the process of testing, when U2816A receives a trigger signal, it will be ignored. So the trigger signal should be sent after the test is done. When optional HANDLER interface triggers U2816A, the trigger mode is set as EXT.

  • Page 28: Bias Current Isolation Function

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] 2) Press ON to turn on the auto level control function. 3) Press OFF to turn off the auto level control function. 3.4.3 Bias current isolation function Bias current isolation function can prevent the DC current from affecting the test input circuit.

  • Page 29: Level Monitor Function

    OFF. 3.4.6 Delay time U2816A trigger delay means the delay time from triggering to test-start. Delay function can set the trigger delay time. When the list sweep test function is used, all set delay time will be delayed at each sweep test point. The range of the trigger delay time can be set from 0s to 60s with 1ms as the resolution.

  • Page 30: Output Impedance

    These soft keys can replace [ENTER] to input delay time. 3.4.7 Output impedance U2816A provides four output impedances for your choice: 100 Ω, 50 Ω, 30 Ω and 10Ω/CC. When testing inductance, it is necessary to input the same output impedance so as to make data comparison with other instruments.

  • Page 31: Bias Src

    MEAS When the reference component is connected with the test terminal, you should press MEAS. Then U2816A will test the reference component and the test result will be automatically input as the value of REF A. 2) Use MEAS or numeric keys to input the reference value of primary parameter.

  • Page 32: Correction

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] NOTE: When the DC bias source is in use, only the output impedance of 100Ω can be used. ——————————————————————————————————————— OPT mode The optional DC bias source can provide internal DC bias current source (0~1A).

  • Page 33: Open

    IEEE 488 interface. 3.5.1 OPEN The open correction function of U2816A can eliminate the error caused by the stray admittance (G, B) parallel-connected with DUT, shown as figure 3-1. Figure 1 Stray Admittance...
  • Page 34 This soft key can be used to terminate the current open correction operation and reserve the formal open correction data. 4) Press ON to turn on the function of open-circuit correction, then U2816A will perform open-circuit correction calculation in the later testing process. IF SPOT FREQ is set as OFF, the open-circuit correction data of the current frequency will be calculated by imbedding algorithm.

  • Page 35: Short

    SHORT soft key to execute full frequency open correction. The 48 fixed frequencies are the same as that in open correction. U2816A can set 64 short correction frequencies in the SPOT NO. zone on the <CORRECTION> page. Move the cursor to SPOT FREQ and then use ON to short correct the set frequencies.

  • Page 36: Load

    By using transport coefficient between the real test value and the standard reference value at the preset frequency (SPOT NO.), the load correction of U2816A can eliminate the test error. It is obvious that open, short, and load correction can be performed at preset frequencies. The 64 preset frequencies can be set in the setup zones of SPOT NO..
  • Page 37 U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] unavailable. SPOT OPEN Press this soft key to execute open correction at SPOT FREQ. SPOT SHORT Press this soft key to execute short correction at SPOT FREQ. MEAS LOAD Press this soft key to execute the load correction at SPOT FREQ.

  • Page 38: Load Correction Test Function

    Press [MEAS SETUP] and then LIMIT TABLE to enter into the <LIMIT TABLE> page as the following figure shown. Compare function can be set on this page. U2816A can set 9 bin limits of primary parameters and one of secondary parameters. The tested result can be divided into up to 10 bins (BIN 1 to BIN 9 and BIN OUT).

  • Page 39: Swap Parameter

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] installs the HANDLER interface and it is used in automatic sorting system, the compare function will be especially useful. The following limit parameter of compare function only be set on <LIMIT TABLE> page.

  • Page 40: Set Nominal Value Of Tolerance Mode

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] Figure 3-3 Tolerance mode and Sequential mode ——————————————————————————————————————— Note: When setting limit values of tolerance mode, the error range should be set in the order from small to large. If the error range of BIN1 is the largest one, then all DUT will sort into BIN 1.

  • Page 41: Comparator Function On/Off

    3.6.4 Comparator function ON/OFF U2816A can set 9 bin limits of primary parameters and 1 bin limit of secondary parameters. The tested results can be sorted into 10 bins (BIN 1 to BIN 9 and BIN OUT) at most.

  • Page 42: High/Low

    2) Use above soft keys to set the auxiliary function as ON or OFF. 3.6.6 HIGH/LOW U2816A can set bin limits of 9 primary parameters and one secondary parameter. The test results can be sorted into 10 bins at most (BIN 1 to BIN 9 and BIN OUT).

  • Page 43: List Setup

    Press [MEAS SETUP] and then LIST SETUP to enter into the <LIST SETUP> page as shown below. The list sweep function of U2816A can perform auto sweep test for the test frequency, test level or bias voltage of 10 points. On <LIST SETUP> page, the following list sweep parameters can be set.

  • Page 44: Mode

    U2816A Operation Manual Chapter 3 Introduction to [MEAS DISP] 3.7.1 MODE Mode menu is the same as the mode on <List sweep> page. 3.7.2 Test parameter Sweep parameters can be: frequency [Hz], level [V], level [I], bias [V], bias [I].

  • Page 45: Chapter 4 [System] And

    U2816A Operation Manual Chapter 4 [System] and [FILE] Chapter 4 [SYSTEM] and <FILE> 4.1 <SYSTEM> Press [System] to enter into the <SYSTEM SETUP> page shown as below. On this page, most system setup items are displayed, such as instrument skin,language, PASS alarm, FAIL alarm, password, bus mode, GPIB address, baud rate, data/time.

  • Page 46: Pass Alarm

    U2816A Operation Manual Chapter 4 [System] and [FILE] 中文 This soft key is used to select Chinese as the operation language. 4.1.3 PASS ALARM This zone is used to control and display the beep mode when the test result is qualified.

  • Page 47: Password

    U2816A Operation Manual Chapter 4 [System] and [FILE] 2) Use above soft keys to turn OFF/ON the key sound. 4.1.6 PASSWORD This zone is used to display the password –protection mode. Operation steps for setting the password 1) Move the cursor to Password, the following soft keys will be displayed.

  • Page 48: Gpib Addr (Reserved Function)

    U2816A Operation Manual Chapter 4 [System] and [FILE] Operation steps for setting bus mode 1) Move the cursor to BUS MODE, the following soft keys will be displayed. RS232C USBTMC USBCDC 2) Use above soft keys to select the required interface bus.

  • Page 49: Firmware Update

    U2816A Operation Manual Chapter 4 [System] and [FILE] 4.1.13 FIRMWARE UPDATE 1) Press FIRMWARE UPDTE enter into the <FIRMWARE UPDATE> page shown as below. 2) Press UPDTE, the following soft keys will be displayed. 3) Press YES soft key to update the firmware of the instrument.

  • Page 50: File

    Chapter 4 [System] and [FILE] 4.2 <FILE> U2816A instrument can save the user-set parameter to the nonvolatile memory in the form of file, so when use the same setting next time user can load a corresponding file to obtain the parameter set and used last time. By doing so, it can save the time of setting parameter and improve the production efficiency.

  • Page 51: U-Disk Manage Performance

    (LIMIT-DATA A/LIMIT-DATA B) 4.2.2 U-disk manage performance As described above, U2816A has a standard configuration of USB HOST interface, so the external U-disk can be used as the memory media. In this condition, it breaks the memory limit of 100 groups of *.EST files. Meanwhile those files can...

  • Page 52: Operation Steps For File Management

    6) Use numeric keys to input the current file name and press [ENTER]. Then U2816A will save the control and setting parameters as a file in this name. B. Load the control and setting parameters from a file by the following steps 1) Press [FILE], the file list and the following soft keys will be displayed.
  • Page 53 U2816A Operation Manual Chapter 4 [System] and [FILE] C. Copy a file to an U disk by the following steps 1) Assuming that it is necessary to copy internal files 2 and 3 to files 12 and 13 respectively. 2) Press [FILE], the file list and the following soft keys will be displayed.

  • Page 54: Chapter 5 Execute Lcr Operation And Some Examples

    U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples Chapter 5 Execute LCR operation and some examples 5.1 Correction operation To execute correction operation (in order to prevent the stray impedance from affecting the test accuracy, it is necessary to make open/short correction), users can select one of the two correction modes.

  • Page 55: Correct Connection Of Dut

    U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples instrument will display the <CORRECTION> function. b) Move the cursor to the Open zone, ON, OFF and SWEEP OPEN will be displayed in the soft key zone. c) Press ON to turn on the open correction function.

  • Page 56: Eliminate The Influence Of Stray Impedance

    U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples the frequency is higher than 10kHz, it cannot meet the measurement demand. In high frequency, the change of the clearance between test leads will directly change stray capacitance and inductance on test terminals and this problem is unavoidable, because the test leads cannot be fixed in a position.
  • Page 57 U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples Shielding ground Shielding Test terminal plate Metal conductor Figure 5-2 Eliminate the influence of stray capacitance When the DUT has high impedance(such as small capacitance), the influence of stray capacitance cannot be ignored. Figure 5-1 is an example of the use of 4 terminal pair measurement.

  • Page 58: Operation Example For Testing Inductance With U2816A

    Press 100Ω to select 100Ω as the signal internal impedance. 3) Connect the test fixture (U26005) to the test terminals of U2816A. 4) Execute correction (To avoid the influence of stray impedance on measurement accuracy, Open/ Short correction must be operated) (refer to 5.1.2 “Point-frequency correction”)

  • Page 59: Operation Example Of Testing Capacitance By Multi-Frequency List Sweep

    U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples the center of the page, shown as below: 7) If the test result is obviously incorrect, please check the following items. a) Check the tested inductance is in good connection with the test fixture or not.
  • Page 60 U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples 1.000V. c) Press [MEAS SETUP] to enter into the <MEAS SETUP> page, meanwhile the following soft keys will be displayed in the soft key zone: MEAS SETUP, CORRECTION, LIMIT TABLE, LIST SETUP and GRAPH SETUP.
  • Page 61 Press [SYSTEM] to enter into the <System Setup> page. Move the cursor to the FAIL ALARM zone to select LONG. 4) Mount the test fixture (U26005) to the test terminals of U2816A. 5) Execute correction function (To avoid the influence of the stray impedance on the measurement accuracy, it is necessary to execute open/short correction (refer to chapter 5.1.1 Sweep Correction)).

  • Page 62: Operation Example Of Load Correction

    U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples 5.6 Operation example of load correction 1) Operation steps Test condition Frequency: 100kHz Cp: 11nF D: 0.0005 a) Press [MEAS SETUP], the following soft keys will be displayed in the soft key zone: MEAS SETUP, CORRECTION, LIMIT TABLE, LIST SETUP, GRAPH SETUP.
  • Page 63 U2816A Operation Manual Chapter 5 Execute LCR Operation and Some Examples short plate and the reeds of the test fixture have good contact. s) Press the soft key SPOT SHORT to execute short correction. Insert a standard capacitance into the test fixture. Please ensure that the pins of the standard capacitance have good connection with the reeds of the test fixture.

  • Page 64: Chapter 6 Performance And Test

    U2816A Operation Manual Chapter 6 Performance and Test Chapter 6 Performance and Test 6.1 Test function 6.1.1 Parameter and symbol C：capacitance L：Inductance R：resistance Z：impedance Y：Admittance X：reactance B：susceptance G：Conductance D：dissipation θ：phase angle Q：Quality factor DCR: DC resistance 6.1.2 Test combination Parameters described above are combined in the following modes: Z，Y...

  • Page 65: Delay Time

    Delay time: time from trigger to start. 0 to 60s are programmable with a resolution of 1ms. 6.1.8 Connection modes of test terminals U2816A adopts 4-terminal test method. HD(Hcur): current sample high terminal LD(Lcur): Current sample low terminal HS(Hpot)：voltage sample high terminal LS(Lpot): Voltage sample low terminal 6.1.9 Test speed (Frequency>=10kHz)

  • Page 66: Test Signal Level

    U2816A Operation Manual Chapter 6 Performance and Test terminals may be smaller than preset voltage. Constant level: The auto adjustment of internal level makes the voltage of DUT accordant with preset voltage. 6.2.3 Test signal level Mode Range Accuracy Resolution ±（10%×preset value+2mV）...

  • Page 67: Accuracies Of │Z│,│Y│, L, C, R, X, G, B

    U2816A Operation Manual Chapter 6 Performance and Test a． warm-up time：≥ 30 min b． cable：0m，1m c． correct open and short correction after warming up d． DC bias is in the position of “OFF” e． The range works in “AUTO” to select correct test range 6.3.1 Accuracies of...

  • Page 68: Accuracy Of Θ

    U2816A Operation Manual Chapter 6 Performance and Test 6.3.4 Accuracy of θ The accuracy of θ is given by the formula below： × π θe = [deg] 6.3.5 Accuracy of G When Dx (tested value of D)≤0.1 The accuracy of G is given by the formula below：...

  • Page 69: Accuracy Factor

    U2816A Operation Manual Chapter 6 Performance and Test is the value of test L with the unit [H]. is the accuracy of D F is test frequency 6.3.8 Accuracy factor Figure A shows the basic measurement accuracy A. 100kH 10kH...
  • Page 70 U2816A Operation Manual Chapter 6 Performance and Test When V <0.4V or V >1.2V , the calculation method of value A is as the following steps: 1. Obtain A according to the current measurement speed; 2. According to the current test signal voltage to select the accuracy...

  • Page 71: Accuracy Of Dcr

    Table C Direct Calibrated frequency [Hz] [Hz] [kHz] [kHz] [kHz] [MHz] There are 43 frequencies in table C, there is no 250kHz and 300kHz in U2816A. Table D Cable length factor K Cable length Test signal level 2.5×10 ） 5×10 ≤1.5V （1+50×f...

  • Page 72: Insulation Resistance

    U2816A Operation Manual Chapter 6 Performance and Test 6.4.1 Insulation resistance Under reference working condition，the insulation resistance between power terminal and instrument jacket should not be smaller than50MΩ. Under humility condition, the insulation resistance between voltage terminal and instrument jacket should not be smaller than 2 MΩ.

  • Page 73: Function Check

    U2816A Operation Manual Chapter 6 Performance and Test 10Ω 100Ω 1kΩ 0.02％ standard resistor 10kΩ 100kΩ 0.1Ω 1Ω 10Ω 0.02％ 100Ω standard resistor 1kΩ 10kΩ 100kΩ 100μH Standard inductor 0.02% 10mH 100mH Frequency counter （0～1000）MHz 0.5％ Digital Multimeter Insulation resistance meter 500V 10 levels 0.25kW...

  • Page 74: Measurement Accuracy

    U2816A Operation Manual Chapter 6 Performance and Test 6.6.6 Measurement accuracy Basic parameters are R, L, C and D，so measurement accuracy is mainly about R, L, C and D. 6.6.7 Accuracy of C and D Function Test frequency 100Hz 1kHz...

  • Page 75: Accuracy Of Dcr

    U2816A Operation Manual Chapter 6 Performance and Test 6.6.10 Accuracy of DCR Test condition Function Test frequency ----- Level ----- Range AUTO Bias ----- Speed Slow Short correction should be made before testing. Connect standard DC resistors: 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ. The error between reading and nominal...

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