MPT LCR01A/B Handheld LCR bridge meter User manual
Contents
1. Kelvin Clip Test Probe s 1 25 3 1 3 2 Use noted Service information MPT warrants to the original purchaser that its products and the component thereof gt will be free from defects in workmanship and materials for a period of one year from date of purchase Items notes Q Don topen the device case beside battery cap QG Keep measuring terminals clean to insure measuring accuracy G During measuring keep hands away form device above 10cm GO Discharge capacitor before measuring O When low voltage alarm then replace battery or charge with adaptor battery if long period t use 26 Appendix Cable connection technique Auto balancing Bridge has four terminals Hcur Hpot and Lpot to connect the device under test DUT It 1s important to understand what connection method will affect the measurement accuracy Two termialQ Dis the simplest way to connect the DUT gt 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 100 to 10K Q 27 Impe Q im 10m 100m 1 10 100 IK 10K 100K 1M 10M Figure 1 28 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 instrume2. 1 111pF 7 999 pF 15 91 nF 159 1nF 1 591 pF NA 20 10 1 2 1 10 1 20 1 41 L Accuracy 20Hz 159 3 79 55 5965H 795 5 79 55 mH 7 955 mH 79 55 5965 7955 79 55 mH 7 955 mH 79 55 uH 2 1 190 1 0 5 1 0 2 1 0 5 1 190 1 100Hz 31 83 15 91 1193H 159 1 15 91 mH 1 591 mH 1591 1193H 159 11 15 91mH 1 591 mH 159 1uH 290 1 190 1 0 5 1 0 2 1 0 5 1 190 1 120Hz 26 52KH 13 26KH 995H 132 6H 13 26mH 1 326mH 13 26KH 995H 132 6H 13 26mH 1 326mH 132 6uH 2931 190 1 0 5 1 0 2 1 0 5 1 190 1 1KHz 31 83 KH 1 591 KH 1193H 15 91 1 591 mH 159 1 uH 1 59 KH 119 3 H 15 911 1 591 mH 159 1 uH 15 91 uH 290t1 1 1 0 590 1 0 290 1 0 5 1 190 1 10KHz 3183H 159 1 11 938 1 5911 159 1 15 91 pH 159 1 H 11 93H 1 591 H 159 1 uH 15 91 MH 1 591 5 1 2 1 0 5 1 0 290 1 0 5 1 190 1 100KHz 31 88H 15 91H 1 1931 159 1 mH 1591 uH 1 591 uH 15 91 H 1 193 H 159 1 mH 15 91 uH 1 591 uH 0 159 uH 5 1 2 1 0 4 1 290 1 595 1 500 2 NA NA 32 26 mH 6 363 mH 3 181 uH 0 318 uH j j j j 6 363 mH 3 181 4H 0 318 HH 0 031 uH NA NA 5 21 190 1 5 21 10 1 1MHz NA NA 16 13 mH 3 181 mH
3. RP Xp 4 1 3 Specification and Accuracy LCD display parameter Range Z 0 0000 9999M OQ L 0 000uH 9999H LCR01A 0 0xxnH 9999H LCRO1 B C 0 000 9999F DCR 00001 9999MQ ESR 0 0000 99990 0 000 9999 Q 0 000 9999 180 0 180 0 Accuracy Ae Zx 20M 10M 750K 100K 20K 10 1 Ae 10M 750K 100K 20K 10 1 0 1 Freq 3 2 Q0 2 63 0 DCR 2 1 0 5 0 2 0 2 0 5 t1 1 1 20Hz LCRO1A 100Hz 1 1 1 1 1 120Hz LCRO1A 1KHz 10KHz 5 2 1 100KHz UnD 5 2 0 496 0 496 2 1 5 1 lx 1 500KHz UnD UnD 10 5 1 596 1 10 1 LCRO1B 1 1 1MHz UnD UnD 10 2 10 1 20 LCRO1B 1 t Accuracy show above is true when 1Vrms measuring level used Ae X 1 25 if 250mVrms measuring level used Ae X 1 50 if 50mVrms measuring level used measuring L and C if Dx 0 1 then Ae X 14Dx2 Measuring ESR if Ox 0 1 then Ae X Measuring level set to 50mV Ae undefined Z accuracy shown on table 1 C accuracy Zx rf Q CAe Ae of Zx f frequency Hz Cx The measured capacitance F Zx The measured impedance Q Above accuracy is true when Dx lt 0 1 gt ifDx 0lthenCAeX Example C accuracy c
4. 1 591 uH 0 159 uH j j j j 3 181 mA 1 591 uH 0 159 hH 0 015 RH NA NA 10 1 2 1 10 21 20 1 42 D Accuracy Zx 20M 10M 750K 100K 10 1 Freq 10M 750K 100K 10 1 0 1 Q Q Q Q Q Q 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 10 004 0 020 0 050 500KHz NA NA NA 10 01 0 050 0 10 1MHz NA NA NA 0 02 0 10 0 200 Accuracy Zx 20M 10M 750K 100K 10 1 Fred 10M 750K 100K 10 1 0 1 Q Q Q Q Q Q 20Hz 1 046 0 523 10 216 20 105 10 261 10 523 100Hz 120Hz 1KHz 10KHz 2 615 1 046 100KHz NA 12 615 11 046 10 209 11 046 12 615 500KHz NA NA NA 1 001 15 005 10 01 1MHz NA NA NA 2 001 110 01 220 01 43 Minpu Technology CO LTD Address 5F NO 4 Lane123 SinTai RD Sinjuhung Taipei county Taiwan Tel 02 2998 8395 Fax 02 2998 2810 44
5. ASE INSTRUMENT CONTAINS USER SERVICEABLE PARTS REFER SERVICE TO QUALIFIED PERSONNEL f r ES 16 Q 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 LCRO1A B is off It will charge battery on battery house 2 3 Open Short calibration LCRO1A B function with Open Short calibration to meet the measuring of High Low impedance measurement O Open calibration Clean the measuring terminal gt make it on open state gt press CAL button about 1 second main parameter will display CALO anda bi sound will be heard gt Calibration time will depend on measuring frequency gt the high frequency the lower calibration time needed After calibration a bi sound will be heard again Short calibration Plug in shorted bar first gt press CAL about 2 seconds till CALS shown on main display anda bi sound will be heard After calibration bi sound will be heard again 24 Display refresh LCRO1A B functions with Fast Slow display refresh mode gt User press the Speed button will toggle speed mode on Fast m
6. MPT LCR01A B Handheld LCR bridge meter User manual Z0 100 120 1K 10K OFF ON LCROJA Frequency Level Speed Relative Z IDCR C L Range Hold D Q ESR HPOT LPoT Guard HCUR L CUR Guard EE Discharge capacitor before measurement 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 LCRO1 B 2 Measuring parameter Main parameter Lp Ls Cs DCR and subparameter ESR gt Q can be displayed in any combination 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 3 1 3 2 Appendix 1 Appendix 2 Appendix 3 Contents MPT LCRO1A B Introduction Function introduction Impedance definition Accuracy and specification Accessory Manual illustration Panel Power Open Short calibration Display speed Relative mode Manual range operation DC impedance measurement AC impedance measurement Capacitance measurement Inductance measurement Accessory operated illustration Usage illustration Maintain illustration Notice Cable connection technique Open Short circuit compensation Serial Parallel mode selection MPT LCRO1A B Introduction 1 1 Function introduction LCRO01A B is an innovative AC DC impedance
7. alculate Measuring condition Frequency 1KHz Level 1Vrms Speed Slow Capacitance under test 100nF Then 7 0 2 m 10 100 1079 121590 0 look up on table 1 CAe 10 2 90 L accuracy Zx 2 m f L Q LAe Ae of Zx f Frequency Hz Lx The measured inductance H Zx The measured impedance Q Above accuracy is true when Dx 0 1 gt if D x 0 1 then CAe X 1 9 Example 1 accuracy calculation Measuring condition Frequency 1KHz Level 1Vrms Speed Slow Inductance under test 1mH then Zx 2 n f Lx 10 10 6 283 Q look up on table 1 LAe 0 5 90 ESR accuracy Xx Ae 1001 Xx 2 n f Ix Q n f f Frequency Hz Xx The measured impedance 2 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 2 10 100 1079 121590 0 look up on table 1 CAe 10 2 90 ESR Ae 100 31590 0 2 100 318 9 D accuracy De tA 100 Above accuracy is true when Dx 0 1 gt if D x gt 0 then CAe X 1 Dx Example C D accuracy calculation Measuring condition Frequency 1KHz Level 1Vrms Speed Slow Capacitance u
8. ance measuring can be separated as Cs Serial Mode and Cp gt Parallel Mode user can press L C Z DCR button as they need If Cs 4 mode selected then press button D Q ESR 1 select one of the four D Q ESR sub parameter If Cp mode selected then press button D Q ESR select one of the three D Q sub parameter 20 r Ip 3 2 10 Inductance measuring Inductance measuring can be separated as Ls gt Serial Mode and Lp Parallel Mode gt user can press L C Z DCR button as they need If Ls 4 mode selected gt then press button D Q ESR select one of the four D Q ESR sub parameter If Lp mode selected then press button D Q ESR select one of the three D Q sub parameter Lp Slow Q APA e 21 2 11 Accessory operation To insure measuring accuracy and stable perform LOCK action when test probe been used Frequency Level Speed Relative Z IDCR C L Range Hold Q D Q ESR Shorted Bar 23 OFF ON LCRO1A Frequency Level Speed Relative Z DCR C L Range Hold D Q ESR LOCK gt Discharge capacitor before measurement SMD Test Probe 24 OFF ON 1 LCROLA Frequency Level Speed Relative ZDCR C L Range 55
9. es to describe the measurement result It is depending on the high or low 1mpedance 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 the Rs shouldn t be avoided Hence gt uses parallel mode to measure low capacitor and series mode to measure high capacitor Small C Rp effect Rp no effect Rs no effect Rs effect 39 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 gt the Rs is more important than 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 Small L Rp effect Rp no effect Rs no effect Rs effect According to analysis above 1 Impedance below 10 gt series mode selected 2 Impedance above 10K gt parallel mode selected 3 Between 100 and 10K depend on needed Example DUT 100pF Freq 10KHz Z 1592K parallel mode selected Example DUT 1004H Fre
10. igh impedance component ie low capacitor the parasitic capacitance becomes an important issue Figure 3 6 In figure 3 6 a gt 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 1 contact Parastic effect contact Guard plant reduces parastic effect 36 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 15 short gt the instrument gets the impedance Zs Rs4jwLs Figure 3 7c After open and short compensation gt and Zs are for calculating the real Zdut Figure 3 7d Parastic of test fixture Redundant Zs Parastic Yo Parastic effect of test fixture 37 Yo Go j Rs j SHORT Zs Rs j Ls Short ckt Zm Zs Zdut Zdut 1 Zm Zs Yo 38 Appendi Selecting the series or parallel mode x3 According to different measuring requirement there are series and parallel mod
11. meter gt also include capacitance and inductance measurement It differ from traditional meter MPT LCRO1A B adapts DSP Digital Signal Process technique gt Technicians and engineers will get various conveniences from this advanced meter Features of MPT LCROLA B Frequency 100K 10K 1K 120 100 20 Hz LCRO1A gt 1M 500K 100K 10K 1K 100Hz LCRO1B OLevel 1Vrms 0 25Vrms 0 05Vrms 1 25Vdc LCRO1A 0 6Vrms 0 25Vrms 0 05 Vrms 0 6Vdc LCRO1B Measuring Parameter Z gt Ls Cs gt DCR ESR gt D gt Q 0 O Basic accuracy 0 29 6 lt 10KHz 0 496 100KHz 1 500KHz 296 1MHz Dual LCD display DSP fast measuring Auto range Range hold Open Short compensation Display parameters Z Impedance DCR DC Resistance Lp Inductance parallel Ls Inductance series Cp Capacitance parallel Cs Capacitance series Impedance phase angle ESR Effective Series Resistance D Dissipation factor Q Quality factor Display assembly Serial mode 7 0 Z ESR ZD Z Q Cs D Cs Q Cs 0 Cs ESR Ls D Ls Q 15 0 Ls ESR Parallel mode Cp Q Lp D Lp Q Lp 0 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 MPT LCRO1A B is an AC DC impedance meter For electronic Circuit gt co
12. mponent and material impedance is an important parameter In engineering vector is used to express impedance It analysed real part Resistance R and imagine part reactance X And the polar express impedance Magnitude and Theta Phase Diagrams below show the relation Imaginary Axis Z Rs Xs Xs Real Axis Rs Z RsyXs Z z0 0 Rs Z Cos fas Xs Z Sin 0 Tan Xs Rs Z Impedance Rs Resistance Xs Reactance Q Unit Ohm Reactance can be separated as Inductive X and Capacitive g The definition as X L50 L 2 x fL and Inductance y C Capacitance F Xo i i 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 gt defined as follow Q D 1 tano Xs Rs 16 RS Cs Rs l c Rp Xs 1_ Lp l o Rp Quality factor 1s applied on inductive components and Dissipation factor 1s applied on capacitive components Both are reciprocal each other Traditional gt component can be analysed as series equivalent and parallel equivalent Both defined as follow Series connection Rs JXs Z Hs Xs parallel connection Rp G 1 Rp IXP 7 Y G B
13. nder test 100nF then Izx 0 10 100 1079 121590 0 look up on table 1 CAe 10 2 90 D A e CAe 100 10 2 100 0 002 Q accuracy De The measured value De relative D accuracy Above accuracy is true when De lt 1 Example C Q accuracy calculation Measuring condition Frequency 1KHz Level 1Vrms Speed Slow Inductance under test 1mH then Zx 22 m f Lx m 10 10 6 283 Q look up on table 1 LAe 0 5 90 De Ae 100 30 005 If the measured Qx 20 QAe Qx2 De 13Qx De 2 030 O accuracy 180 0 100 Deg Example Z accuracy calculation Measuring condition Frequency 1KHz Level 1Vrms Speed Slow Capacitance under test 100nF then 7 0 100 m 103 100 10 1590 0 look up on table 1 ZAe 0 2 9 180 7 ZAe 100 0 115 Deg measuring signal Level accuracy 1096 Frequency accuracy 0 0196 O Output impedance 100 76 O Measuring speed depend on frequency Fast 5 times second 1 KHz Slow 2 5 times second 1 O KHz Q Power low notify Input or battery power lower than 6 2Volt O Battery Charge current about 18mA Battery type Ni Mh Life 3 0 hr LCRO1A gt 1 5 hr LCRO1B O Adapter Input 110V 220Vac 50 60Hz Output 12Vdc O Operation environment Tem
14. nt to increase the measurement range up to 1OMQ no effect on test result Figure 2 29 impe Q 10m 100m 1 10 100 1K Figure 2 continued 10K 100K 1M 10M 30 4 Terminal 4T connection reduces the effect of the test lead resistance gt this connection can improve the measurement range down to 10m However the inductance of the test lead can not be eliminated 10m 100m 1 10 100 1K 10K 100K 1M 10M Figure 3 31 5 Terminal connection 1s the combination of 3T and 4T It has four coaxial cable Due to the advantage of 3T and 4T gt this connection can widely increase the measurement range for 10m to 10M 0 10m 100m 1 10 100 1K 10K 100K 1M 10M 32 Wrong connection of 4T Figure 4 4 terminal path 4TP connection solves the problem that caused by the test lead inductance ATP 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 9 Therefore gt 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 ImQ to 10 gt 33 10m 100m 1 10 100 1K 10K 100K 1M 10M 34 10m 100m 1 10 100 1K 10K 100K 1M 10M 35 Eliminating the effect of the parasitic capacitor When measuring the h
15. ode the refresh speed will be twice of Slow 4 mode the more of the measuring frequency the faster of the refresh speed 2 5 Relative mode LCRO1A B functions with measuring relative mode gt 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 of the reference value from the measuring one 2 6 Range hold mode LCRO01A B functions with autorange range hold mode gt put a reference component on the test terminals gt then wait until display stable gt press Range Hold button RH y will be shown on sub parameter display LCD gt LCRO1A will set this measuring range Remove this reference component and put other component under test on test terminals the measured result will gotten faster But care should be taken the measured range should in the range 2 and 1 2 of the reference value 27 DC impedance measuring Press L C Z DCR till DCR shown on main parameter display LCD then LCRO1A B will be in the DC impedance measuring mode 3208 Slow 2 8 AC impedance measuring Press L C Z DCR till Z y shown on main parameter display LCD then LCRO1A B will be in the AC impedance measuring mode 29 Capacitance measuring Depend on component equivalent Capacit
16. perature 0 C to 40 C operation 20 C to 70 C storage Humidity lt 85 R H at 40 C Size 178mm x 86 mm x 45mm T x34 x 1 8 LxWxH Weight 300g 1 4 Accessory OLCROLA B Operation manual OLCROLA or LCRO1B one set Ni Mh rechargeable battery Shorted Bar wire 0 75mSMD test probe 5 wire 0 75m Kelvin Clips test cable AC power adaptor E e IONS User operate illustration 2 1 Panel Slow Rel D Q um Fast RH esp BBB Main parameter display LCD Low voltage indicator Machine type Level switch button Frequency switch button Display speed switch Button ZIDCR C L display switch button Hpot Hcur terminal Lpot Lcur terminal Battery house 11 12 13 14 15 16 17 18 Subparameter display LCD Power ON OFF switch Open Short calibration button Relative mode button O D Q ESR display switch button Auto Range hold switch button Guard terminal Power adaptor input hole 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 7 TO AVOID SHOCK HAZARD DISCONNECT TEST LEADS BEFORE OPENING C
17. q 10KHz 2 6 28321 Serial mode selected C Accuracy 40 20Hz 398 pF 795 5 pF 10 6 nF 79 55 nF 7955 7 955 mF 795 5 pF 10 6 nF 79 55 nF 795 7 955 mF 79 55 mF 290 1 190 1 0 5 1 0 2 1 0 5 1 190 1 100Hz 79 57pF 1591pF 1 212 15 91nF 1591 uF 1591 uF 159 1 pF 2 121nF 15 91nF 159 1 uF 159111 15 91mF 2 1 190 1 0 5 1 0 2 1 0 5 1 190 1 120Hz 66 31pF 132 6pF 1 768nF 13 26nF 132 6uF 13268 132 6pF 1 768nF 13 26nF 132 1326uF 13 26mF 2 1 1 1 0 5 1 0 2 1 0 590 1 1 1 2 7 957 15 91 pF 212 1 1 591nF 15 91 uF 159 1 15 91 pF 2121pF 1 591 15 91 uF 159 1 uF 1 591 mF 2 1 1 1 0 5 1 0 2 1 0 590 1 1 1 10KHz 0 795 1 591 21 21 159 1 pF 1 591 uF 15 91 1 59 pF 2121pF 1591 1 591 15 91 uF 159 1 pF 5 1 2 1 0 5 1 0 2 1 0 5 1 1 1 100KHz NA 0 159 pF 2 121pF 1591pF 159 1nF 1 591 uF 2 121 pF 15 91 159 1 nF 1 591 pF 15 91 pF NA 5 1 2 1 0 4 1 290 1 5 1 S00KHz NA 0 159 pE 2 121 15 91 31 91nF 7 2 121 pF 15 91 31 91 nF 319 1 nF 3 191 pF NA 10 1 5 1 190 1 5 1 10 1 1MHz NA 0 079 pF 1111 7 999pF 15 91nF 159 1 nF
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