ORMELABS MW1008P Скачать руководство пользователя страница 1

Страница: 1 / 42

MW1008P, user manual

LCR meter MW1008P

User Manual

http://www.ormelabs.com

Содержание MW1008P

Страница 1: ...MW1008P user manual 1 LCR meter MW1008P User Manual Copyright Ormelabs 2010 2015 http www ormelabs com...

Страница 2: ...Parallel models 21 Displays types 21 Test conditions 23 Test frequencies 23 Impedances ranges 25 Open short calibration 25 Connecting to a passive component 27 Connecting to a transformer 27 Pinout of...

Страница 3: ...PECIFICATIONS Functions Auto L Q C D R Q Z R X G B N N 1 Vs Vp M L AL C Vr varactor option Equivalent circuit Series or parallel Displayed parameters Value Deviation deviation Measurement display L Q...

Страница 4: ...Open Z 10 k Sorting Selection of tolerance 1 2 5 10 or 20 Averaging 2 to 8 measurements General Operating Conditions 0 50 C 80 relative humidity Power supply 7 5 15V 150 mA with light 100 mA without D...

Страница 5: ...insulated wire The property of a coil is to oppose itself to current variations and is characterized by its inductance Capacity The property of a capacitor The capacity of a capacitor is expressed in...

Страница 6: ...econdary parameter accuracy is an absolute value Basic Accuracy The actual accuracy of the instruments depends of some parameters like test frequency and impedance The basic accuracy is the best case...

Страница 7: ...ding to the range and resolution The symbol in front of the major parameter indicates that the measurement is displayed as a relative or absolute deviation from a nominal value A dark arrow present in...

Страница 8: ...turns ratio and phase angle Vs Vp Secondary and Primary Voltage M Mutual Inductance and phase angle Frequ The Freq key selects one of the following test frequencies 100 Hz 120 Hz 250 Hz 500 Hz 1 kHz...

Страница 9: ...ay Numb Avrg 4 Number of measurements used for averaging Varactor varicap OFF This option requires the MW108 Varactor Test Fixture available from MW Instruments Turning the Varactor option to ON will...

Страница 10: ...umber of turns select EDIT A cursor will be displayed under the last digit on the LCD Pressing the Change key will step the value of the digit over the cursor Pressing the NEXT key will move the curso...

Страница 11: ...e a PASS FAIL message is shown in the second line of the display according to the measured deviation and the selected tolerance CAL The CAL key allows access to open short compensation Pressing the CA...

Страница 12: ...acitor or inductor can be represented by a real part the resistance in series or in parallel with an imaginary part reactance inductance if positive or capacitance if negative The impedance varies wit...

Страница 13: ...a nearly pure capacitor In order to achieve reliable measurement a short zero must be performed before any ESR or D measurement because in this case the series resistor can be very small Like most eve...

Страница 14: ...case the Series Resistance Rs is more significant than Rp thus the series circuit model becomes appropriate Mid range values of C require a more precise reactance to resistance comparison but the log...

Страница 15: ...fect the inductor s value Model of a real inductor The series resistance Rs represents the resistive losses in the windings The parallel capacitance Cp is the equivalent capacitive effect between the...

Страница 16: ...resistance and the reactance of the inductor R and X and knowing the source resistance The source resistor varies according to the impedance range its value is 100 for ranges 1 and 2 for example i rms...

Страница 17: ...h has no effect on the measurement of series R For high values of resistors greater than several M the best choice is usually a low frequency measurement in a parallel equivalent mode Parallel because...

Страница 18: ...its are k or M Z Absolute value and phase angle of the DUT The absolute value is displayed in the first line The phase angle corresponds to the phase difference between the current and the voltage The...

Страница 19: ...the primary voltage is attenuated by a higher source impedance which allows a wider secondary voltage measurement range The real range depends on several factors such as transformer primary impedance...

Страница 20: ...transformer In case of capacity overflow the message OVERFLOW is displayed If so change impedance range by pressing key Hold Range It is better to start with the lowest range and then increase range...

Страница 21: ...figure will increment by one unit at each press To go to next figure press key NEXT The cursor will move below the next figure Modify this way the value until getting the desired value The unit at th...

Страница 22: ...ppropriate range The manual mode allows to get a faster response since the instrument doesn t have to search for the correct range for each measure It is besides one of the few cases where manual mode...

Страница 23: ...gured for a mains frequency of 50Hz same as the frequency of 100 Hz should not be used for a mains frequency of 60 Hz The user frequency allows to choose with precision a particular frequency To selec...

Страница 24: ...d not capacitance or inductance ranges The manual choice of a range implies to know the impedance of the component at the current test frequency The manual test mode should be reserved to measure simi...

Страница 25: ...ctor values and for high impedances small capacitors values and strong inductors values The open short calibration is besides mandatory to measure with a small error the losses in a components like th...

Страница 26: ...S if the calibration succeeded FAILED in the other case To perform a calibration at all frequencies press key CAL long enough so that the instrument displays the menu OPEN SHORT in capital letters The...

Страница 27: ...kage has 4 mini pincers This cable can be used as well for for standard 2 terminals passive components as for transformers The 2 red mini pincers correspond to signals HD and HS while the black ones c...

Страница 28: ...given below side view This allows to make your own test cables For a classical use you just need to use a standard 5 pins male DIN plug The cables should be shielded type the shields being connected t...

Страница 29: ...of resistances and impedances Precision of R Ar Ae KH KL 100 Ae Base precision value given in the following table For Q values 0 1 multiply the value of A by 1 Q KH KL factors corresponding to range l...

Страница 30: ...Al precision of inductor calculated as above Note The precision of Q is an absolute value and not a percentage Precision of capacitors Precision of C Ac Ae KH KL 100 Ac Base precision value given in t...

Страница 31: ...MW1008P user manual 31 Base precision...

Страница 32: ...wave generator Phase Detector A response proportional to the part in phase or in quadrature phase is obtained The final measure is entrusted to a dual slope converter which is read by the microcontrol...

Страница 33: ...70 removing any common offsets and reducing noise Each of these measures has no meaning in itself because the absolute phase between the sine wave test signal and the square is not known and because t...

Страница 34: ...e and secondary voltage and then performs the vector ratio of these two quantities The primary of the transformer is powered by the generator of the test signal through the source resistance The sourc...

Страница 35: ...SET OF CALIBRATION Start by connecting the test cable on the CB plug of the instrument Turn the power off 1 Press a button and turn the instrument on Release the button when the display reads DIAG CA...

Страница 36: ...g steps in order not to change the value of these parasitics If you use cable MW10 mini pincers LD and LS should be connected together as well as mini pincers HD and HS Press the n Vs M choice Ok The...

Страница 37: ...performed After calibration we can verify the value of resistors in the Z mode The values must match the actual values with a zero phase angle and at all frequencies Error messages at power on Rcal E...

Страница 38: ...activate the test complex values current voltage Press EXIT to return under the main menu Press the button under OK to activate the test values of A D converter Press EXIT to return under the main me...

Страница 39: ...out Key Voltage R70 V Displayed value L C R 3 30 1023 N Vs M 2 65 823 Frequ 2 15 667 Hold Range 1 73 538 CAL 1 37 426 DISP 1 23 323 MENU 0 717 220 MODEL 0 379 117 Test of buzzer This test is useful wh...

Страница 40: ...the capacitor Z 100 v i 100 65 62 41 36 158 6 In reality this value may be slightly different because we assumed that the reference resistance is 100 ohms exactly The calibration coefficients are not...

Страница 41: ...the values with a phase angle of 90 180 and 270 The final quadrature value is obtained by subtracting the components out of phase here Vq 0 344 0 6909 0 34690 The final phase value is obtained by sub...

Страница 42: ...MW1008P user manual 42 ORMELABS 87 Avenue Victor Hugo 94100 St Maur des Foss s FRANCE Web www ormelabs com Email infos ormelabs com Tel 33 0 1 82 52 27 11...

Результаты поиска

Содержание MW1008P

Отзывы:

Похожие инструкции для MW1008P

Бренды по названию

Популярные бренды

ORMELABS MW1008P, Руководство пользователя

Результаты поиска

Содержание MW1008P

Отзывы:

Похожие инструкции для MW1008P

Бренды по названию

Популярные бренды