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Minpu Technology MPT LCR01B User Manual

Handheld lcr bridge meter
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1. Adapt DSP technology to achieve fast measuring speed, high accuracy and high
reliability.Measuring frequency can be set at 100K/10K/1K/120/100/20 Hz (LCR01A)
or 1M/500K/100K/10K/1K/100Hz(LCR01B)。
2. Measuring parameter：Main parameter Z，Lp，Ls，Cp，Cs，DCR and subparameter
ESR，D，Q，θ can be displayed in any combination.
MPT LCR01A/B
Handheld LCR bridge meter
User manual

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  • Page 1 MPT LCR01A/B Handheld LCR bridge meter User manual Featured： 1. Adapt DSP technology to achieve fast measuring speed, high accuracy and high reliability.Measuring frequency can be set at 100K/10K/1K/120/100/20 Hz (LCR01A) or 1M/500K/100K/10K/1K/100Hz(LCR01B)。 2. Measuring parameter：Main parameter Z，Lp，Ls，Cp，Cs，DCR and subparameter ESR，D，Q，θ...

  • Page 2: Table Of Contents

    Contents Page MPT LCR01A/B Introduction 1.1. Function introduction 1.2. Impedance definition 1.3. Accuracy and specification 1.4. Accessory Manual illustration 2.1. Panel 2.2. Power 2.3. Open/Short calibration 2.4. Display speed 2.5. Relative mode 2.6. Manual range operation 2.7. DC impedance measurement 2.8.

  • Page 3: Mpt Lcr01A/B Introduction

    MPT LCR01A/B Introduction 1.1. Function introduction： MPT LCR01A/B is an innovative AC/DC impedance meter，also include capacitance and inductance measurement。It differ from traditional meter，MPT LCR01A/B adapts DSP(Digital Signal Process) technique，Technicians and engineers will get various conveniences from this advanced meter。 Features of MPT LCR01A/B： ●Frequency：100K/10K/1K/120/100/20 Hz(LCR01A) ：1M/500K/100K/10K/1K/100Hz(LCR01B) ●Level：1Vrms/0.25Vrms/0.05Vrms/1.25Vdc(LCR01A)

  • Page 4: Impedance Definition

    Ls-D , Ls-Q , Ls-θ , Ls-ESR Parallel mode： Cp-D , Cp-Q , Cp-θ Lp-D , Lp-Q , Lp-θ 1.2. Impedance parameter definition According to the different measuring signal of impedance meter，It can be separated DC and AC impedance meter。The popular multimeter in market is a DC resistance meter；The MPT LCR01A/B is an AC/DC impedance meter。For electronic Circuit，...
  • Page 5 Imaginary Axis Z（Rs , Xs） ∣Z∣ θ Real Axis 圖 一 Z = Rs+jXs =∣Z∣∠θ （Ω ） ∣Z∣= Rs =∣Z∣Cosθ + Xs θ （Xs/Rs） Xs =∣Z∣Sinθ = Tan Z：Impedance Rs：Resistance Xs：Reactance Ω ：Unit Ohm...
  • Page 6 Reactance can be separated as(Inductive) X and(Capacitive) X 。The definition as： =ω L=2π fL L：Inductance (H) C：Capacitance (F) =(ω C) -1 =(2π fC) -1 f：Frequency (Hz) Additional ， other parameters are attached to passive component ， Quality factor(Q) and Dissipation Factor(D)。Both are defined the purity of reactance，that is the energy storage(reactance) and the energy consumption(resistance)ratio，defined as follow：...
  • Page 7 ●LCD display： parameter Range 0.000Ω ～ 9999MΩ 0.000H ～ 9999H(LCR01A) 0.0xxnH ～ 9999H(LCR01B) 0.000pF ～ 9999F 0.000Ω ～ 9999MΩ 0.000Ω ～ 9999Ω 0.000 ～ 9999 0.000 ～ 9999 ° ° Θ ﹣180.0 ～ 180.0 ●Accuracy（Ae） ： ∣Zx∣ 750K 100K ∫ ∫...
  • Page 8 measuring L and C，if Dx＞0.1, then Ae X (1+Dx )。 Measuring ESR，if Qx＞0.1, then Ae X (1+Qx ) 。 Measuring level set to 50mV, Ae undefined。 ＊ Z accuracy ：shown on table 1. C accuracy ： ∣Zx∣＝(2．．f．Cx) (Ω ) CAe＝Ae of ∣Zx∣ f：frequency(Hz) Cx:The measured capacitance(F) ∣Zx∣：The measured impedance(Ω...
  • Page 9 L accuracy ： ∣Zx∣＝2．．f．L (Ω ) LAe＝Ae of ∣Zx∣ f：Frequency(Hz) Lx:The measured inductance(H) ∣Zx∣：The measured impedance(Ω ) Above accuracy is true when Dx＜0.1，if D x＞0.1 then CAe X (1+Dx ) 。 Example：L accuracy calculation Measuring condition： Frequency：1KHz Level：1Vrms Speed：Slow Inductance under test：1mH then ∣Zx∣＝2．．f．Lx ∣Zx∣＝2．．10 3 ．10 -3 ＝6.283 (Ω...
  • Page 10 ESR accuracy ： ±Xx．Ae． 100 (Ω ) Xx＝2．．f．Lx＝(2．．f．Cx) -1 f：Frequency(Hz) Xx:The measured impedance(Ω ) Lx:The measured inductance(H) Cx：The measured capacitance(F) Above accuracy is true when Dx＜0.1。 Example：Cs-ESR accuracy calculation Measuring condition： Frequency：1KHz Level：1Vrms Speed：Slow Capacitance under test：100nF then ∣Zx∣＝Xx＝(2．．f．Cx) -1 ∣Zx∣＝(2．．10 3 ．100．10 -9 ) -1 ＝1590 (Ω...
  • Page 11 D accuracy ： De＝±A e /100 Above accuracy is true when Dx＜0.1，if D x＞0.then CAe X (1+Dx)。 Example：C-D accuracy calculation Measuring condition： Frequency：1KHz Level：1Vrms Speed：Slow Capacitance under test：100nF then ∣Zx∣＝ (2．．f．Cx) ∣Zx∣＝(2．．10 ．100．10 ＝1590 (Ω ) look up on table 1: CAe＝±0.2 (%) D A e ＝...
  • Page 12 Q accuracy ： Qe＝±(Qx ．De)/(1 Qx．De) Qx：The measured Q value。 De:relative D accuracy。 Above accuracy is true when Qx．De＜1。 Example：C-Q accuracy calculation Measuring condition： Frequency：1KHz Level：1Vrms Speed：Slow Inductance under test：1mH then ∣Zx∣＝2．．f．Lx ∣Zx∣＝2．．10 3 ．10 -3 ＝6. 283 (Ω ) look up on table 1: LAe＝±0.5 (%) De＝±Ae/100＝±0.005...
  • Page 13 Θ accuracy ： θ e＝ (180/π )/(Ae/100) (Deg) Example：Z-θ accuracy calculation Measuring condition： Frequency：1KHz Level：1Vrms Speed：Slow Capacitance under test：100nF then ∣Zx∣＝(2．．f．Cx) ∣Zx∣＝1/(2．．10 3 ．100．10 -9 )＝1590 (Ω ) look up on table 1: ZAe＝±0.2 (%) θ Ae＝±(180/π )/(ZAe/100)＝±0.115 (Deg)
  • Page 14 ●measuring signal： Level accuracy：10％ Frequency accuracy：0.01％ ●Output impedance：100Ω ±5％ ●Measuring speed：depend on frequency Fast：５times/second(1０KHz) Slow：２．５times/second(1０KHz) ●Power low notify： Input or battery power lower than 6.2Volt ●Battery： Charge current：about 60mA Battery type：Lithium-Ion Life：11 hr(LCR01A) ，8 hr(LCR01B) ●Adapter： Input：110V/220Vac 50/60Hz Output：12Vdc ●Operation environment： Temperature：0℃...

  • Page 15: Accessory

    1.4. Accessory ●LCR01A/B Operation manual ●LCR01A or LCR01B one set ●Lithium-Ion rechargeable battery ●Shorted Bar ●5 wire/0.75mSMD test probe ●5 wire/0.75m Kelvin Clips test cable ●AC power adaptor...

  • Page 16: Panel

    User operate illustration 2.1. Panel： 1. Main parameter display LCD 11. Subparameter display LCD 2. Low voltage indicator 12. Power ON/OFF switch 3. Machine type 13. Open/Short calibration button 4. Level switch button 14. Relative mode button 15. Θ /D/Q/ESR display switch button 5.

  • Page 17: Power

    2.2. Power： ●Battery supply Remove battery cup，clean battery house，put the pull-up tape under battery and put battery into the battery house in proper direction，then put on the battery cup 。 If the battery is not chargeable ， remove the power adaptor input connector；If the battery is chargeable，power adaptor input connector can be plug-in。...
  • Page 18 ●Power adaptor supply If battery not available，It can be powered by power adaptor。If the power adaptor is plug-in and the power switch on LCR01A/B is off，It will charge battery on battery house。...

  • Page 19: Open/Short Calibration

    2.3. Open/Short calibration： LCR01A/B function with Open/Short calibration to meet the measuring of High/Low impedance measurement。 ●Open calibration Clean the measuring terminal，make it on open state，press【CAL】button about 1 second，main parameter will display「CALO」and a “bi” sound will be heard，Calibration time will depend on measuring frequency，the high frequency ，...

  • Page 20: Relative Mode

    2.4. ●Display refresh： LCR01A/B functions with Fast/Slow display refresh mode，User press the 【Speed】button will toggle speed mode。on『Fast』mode，the refresh speed will be twice of『Slow』mode，the more of the measuring frequency， the faster of the refresh speed。 2.5. ●Relative mode LCR01A/B functions with measuring relative mode，user put a reference component on the test terminals。Then press 【Relative】button。And remove this reference component from the test terminals，put other device under test on test terminals then，the main LCD display will display the result of subtraction...
  • Page 21 2.8. ●AC impedance measuring Press 【L/C/Z/DCR】 ，till 『 Z』 shown on main parameter display LCD，then LCR01A/B will be in the AC impedance measuring mode。 2.9. ●Capacitance measuring Depend on component equivalent ， Capacitance measuring can be separated as(Cs ， Serial Mode) and (Cp，Parallel Mode)，user can press【L/C/Z/DCR】button as they need。If 『Cs』...
  • Page 22 2.10. ●Inductance measuring Inductance measuring can be separated as(Ls，Serial Mode) and (Lp，Parallel Mode)，user can press【L/C/Z/DCR】button as they need。If『Ls』mode selected，then press button 【θ /D/Q/ESR】 select one of the fourθ /D/Q/ESR sub-parameter。If 『 Lp』 mode selected， then press button【θ /D/Q/ESR】select one of the threeθ /D/Q sub-parameter。。...
  • Page 24 2.11. ●Accessory operation To insure measuring accuracy and stable，perform「LOCK」action when test probe been used。 Shorted Bar...
  • Page 25 SMD Test Probe...
  • Page 26 Kelvin Clip Test Probe...
  • Page 27 Use noted 3.1. Service information MPT warrants to the original purchaser that its products and the component thereof ，will be free from defects in workmanship and materials for a period of one year from date of purchase。 3.2. Items notes ●Don’t open the device case beside battery cap。...

  • Page 28: Appendix Cable Connection Technique

    Appendix Cable connection technique 一 Auto-balancing Bridge has four terminals(Hcur、Hpot、Lcur、and Lpot)to connect the device under test(DUT).It is important to understand what connection method will affect the measurement accuracy。 Two terminal(2T)is the simplest way to connect the DUT，but it contents many errors which are the inductor and resistor as well as the parasitic capacitor of the test leads(figure 1)。Due to these errors in measurement，The effective impedance measurement range will be limit at 100Ω...
  • Page 29 ● ● ● ● ● ● Impe Ω 10m 100m 100K Figure 1.
  • Page 30 3-Terminals(3T) uses coaxial cable to reduce the effect of the parasitic capacitor ， the shield of the coaxial cable should be connect to Guard of the instrument to increase the measurement range up to 10 MΩ 。 ● ● ● ●...
  • Page 31 ● ● ● 2-T with shielding impe Ω 10m 100m 100K Figure 2 (continued)
  • Page 32 4-Terminal(4T)connection reduces the effect of the test lead resistance，this connection can improve the measurement range down to 10mΩ。However，the inductance of the test lead can not be eliminated。 ● ● Impe Ω 10m 100m 100K Figure 3.
  • Page 33 5-Terminal connection is the combination of 3T and 4T。It has four coaxial cable。Due to the advantage of 3T and 4T，this connection can widely increase the measurement range for 10mΩ to 10MΩ 。 ● ● ● Impe Ω 10m 100m 100K...
  • Page 34 ● ● ● Wrong connection of 4T Figure 4. 4-terminal path(4TP) connection solves the problem that caused by the test lead inductance。4TP uses four coaxial cables to isolate the current path and the voltage sense cable。The return current will flow through the coaxial cable as well as the shield 。Therefore，the magnetic flux that generated by internal conductor will cancel out the magnetic flux generated by external conductor(shield)。The 4TP increase the measurement range from...
  • Page 35 ● ● ● Impe Ω 10m 100m 100K...
  • Page 36 ● ● Impe Ω 10m 100m 100K...
  • Page 37 Eliminating the effect of the parasitic capacitor When measuring the high impedance component(i.e. low capacitor)，the parasitic capacitance becomes an important issue(Figure 3.6) 。 In figure 3.6(a) ， the parasitic capacitor Cd is paralleled to DUT as well as Ci and Ch，To correct this problem。Add a guard plane(Figure 3.6b) in between H and L terminals to break the Cd。If the guard plane is connected to instrument guard，The effect of Ci and Ch is removed。...
  • Page 38 Append Open/Short compensation For those precision impedance measuring instrument，the open and short compensation need to be used to reduce the parasitic effect of the test fixture。The parasitic effect of the test fixture can be treated like the simple passive components in figure 3.7a 。 When the DUT is open ， the instrument gets the conductance Yp=Gp+jwCp(Figure 3.7b) 。When the DUT is short，the instrument gets the impedance Zs=Rs+jwLs(Figure 3.7c)。After open and short compensation，Yp and Zs are for calculating the real Zdut(Figure 3.7d)。...
  • Page 39 ● ● ● OPEN ● ● ● Yo=Go+jω Co Rs+jω « （Go+jω Co） Open ckt ● ● ● ● SHORT ● ● ● Zs=Rs+jω Ls Short ckt ● Zm-Zs Zdut Zdut = 1-(Zm-Zs)Yo Yoms ●...
  • Page 40 Appendi Selecting the series or parallel mode According to different measuring requirement，there are series and parallel modes to describe the measurement result。It is depending on the high or low impedance value to decide what mode to be used。 ●capacitor The impedance and capacitance in the capacitor are negatively proportional。 Therefore，the large capacitor means the low impedance；the small capacitor means the high impedance。Figure below shows the equivalent circuit of capacitor。If the capacitor is small，the Rp is more important than the Rs。If the capacitor is large，...
  • Page 41 ●Inductor The impedance and inductive in the inductor are positively proportional。Therefore，the large inductor equals to the high impedance and vice versa。Figure below shows the equivalent circuit of inductor。If the inductor is small，the Rs is more important than Rp， If the inductor is large，The Rp should be taking care of。So，uses series mode to measure low inductor and parallel mode to measure high inductor。...
  • Page 42 C. Accuracy： 795.5 F 20Hz 398 pF 795.5 pF 10.6 nF 79.55 nF 7.955 mF ∫ ∫ ∫ ∫ ∫ ∫ 795.5 F 795.5 pF 10.6 nF 79.55 nF 7.955 mF 79.55 mF 2%±1 1%±1 0.5%±1 0.2%±1 0.5%±1 1%±1 159.1 F 1591 F 100Hz 79.57 pF...
  • Page 43 L Accuracy： 20Hz 159.3 KH 79.55 KH 5965 H 795.5 H 79.55 mH 7.955 mH ∫ ∫ ∫ ∫ ∫ ∫ 79.55 H 79.55 KH 5965 H 795.5 H 79.55 mH 7.955 mH 2%±1 1%±1 0.5%±1 0.2%±1 0.5%±1 1%±1 100Hz 31.83 KH 15.91 KH 1193H...
  • Page 44 D Accuracy： ∣Zx∣ 750K 100K ∫ ∫ ∫ ∫ ∫ ∫ Freq. 750K 100K (Ω ) (Ω ) (Ω ) (Ω ) (Ω ) (Ω ) 20Hz ±0.020 ±0.010 ±0.005 ±0.002 ±0.005 ±0.010 100Hz 120Hz 1KHz 10KHz ±0.050 ±0.020 100KHz NA ±0.050 ±0.020 ±0.004...
  • Page 45 Minpu Technology CO,. LTD Address:5F,NO.4,Lane123,SinTai RD,Sinjuhung Taipei county Taiwan Tel：(02)2998-8395 Fax：(02)2998-2810...

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