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DEREE DE-5000 Скачать руководство пользователя страница 3

- 4 -

II. Measuring Principle Introduction

Impedance parameter introduction

䎷䏋䏈䎃䏌䏐䏓䏈䏇䏄䏑䏆䏈䎃䏆䏒䏑䏖䏌䏖䏗䏖䎃䏒䏉䎃䏕䏈䏖䏌䏖䏗䏄䏑䏆䏈䎃䎋䏕䏈䏄䏏䎃䏓䏄䏕䏗䎌䎃䏄䏑䏇䎃䏕䏈䏄䏆䏗䏄䏑䏆䏈䎃
䎋䏌䏐䏄䏊䏌䏑䏄䏕䏜䎃䏓䏄䏕䏗䎌䎑䎃䎩䏒䏕䎃䏈䏛䏄䏐䏓䏏䏈䎏䎃䎽䏖䎃䏕䏈䏓䏕䏈䏖䏈䏑䏗䏖䎃䏗䏋䏈䎃䏌䏐䏓䏈䏇䏄䏑䏆䏈䎃䏌䏑䎃
䏖䏈䏕䏌䏈䏖䎃䏐䏒䏇䏈䎑䎃䎽䏖䎃䏆䏄䏑䎃䏅䏈䎃䏇䏈䏉䏌䏑䏈䏇䎃䏄䎃䏆䏒䏐䏅䏌䏑䏄䏗䏌䏒䏑䎃䏒䏉䎃䏕䏈䏖䏌䏖䏗䏄䏑䏆䏈䎃䎵䏖䎃䏄䏑䏇䎃
䏕䏈䏄䏆䏗䏄䏑䏆䏈䎃䎻䏖䎑䎃䎬䏗䎃䏄䏏䏖䏒䎃䏆䏒䏘䏏䏇䎃䏅䏈䎃䏇䏈䏉䏌䏑䏈䏇䎃䏄䏖䎃䏄䎃䏟䎽䏟䎃䎋䏟䎽䏟䎃䎠䎃䎵䏖䎕䎃䎎䎃䎻䏖䎕䎃䎌䎃
䏒䏉䎃䏐䏄䏊䏑䏌䏗䏘䏇䏈䎃䏚䏌䏗䏋䎃䏄䎃䏓䏋䏄䏖䏈䎃䏄䏑䏊䏏䏈䎃䕠䎑䎃

Zs = Rs + jXs or |Zs|

И

ș

Rs = |Zs| cos

ș

Xs = |Zs| sin

ș

Xs/Rs = tan

ș

ș

= tan-1(Xs/Rs)

- 5 -

If

ș

> 0, the reactance is inductive. In other words, if

ș

< 0, the

reactance is capacitive.
There are two types for reactance. The one is the inductive
reactance XL and the other is the capacitive reactance XC.

䎃

䎷䏋䏈䏜䎃䏆䏒䏘䏏䏇䎃䏅䏈䎃䏇䏈䏉䏌䏑䏈䏇䎃䏄䏖䎝䎃䎃
䎋

䏉䎃䎠䎃䏖䏌䏊䏑䏄䏏䎃䏉䏕䏈䏔䏘䏈䏑䏆䏜䎌䎃䎃

XL = 2

ʌ

f L

䎃䎃䎃䎃䎃䎋䎯䎃䎠䎃䎬䏑䏇䏘䏆䏗䏄䏑䏆䏈䎌䎃䎃

XC =1/ (2

ʌ

f C)

䎃䎃䎋䎦䎃䎠䎃䎦䏄䏓䏄䏆䏌䏗䏄䏑䏆䏈䎌䎃䎃

Measurement mode

The impedance could be measured in series or parallel

mode. The impedance

Z

in parallel mode could be represented

as reciprocal of admittance

Y

. The admittance could be defined

as Y = G + jB. The G is the conductance and the B is the
susceptance.

䎃

Rs: Resistance in series mode
Xs: Reactance in series mode
Cs: Capacitance in series mode
Ls: Inductance in series mode

Rp: Resistance in parallel mode
Xp: Reactance in parallel mode
Cp: Capacitance in parallel mode
Lp: Inductance in parallel mode

Y = 1/Z = 1/Rp + 1/jXp = G+jB

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Содержание DE-5000

Страница 1: ...ring Principle Introduction 04 07 III Panel Illustration 08 10 IV LCD Display Illustration 11 12 V Operation Instructions 13 34 1 Power ON OFF 13 14 2 CAL 15 17 3 LCR AUTO 18 20 4 Inductance Capacitance Resistance Measurement 20 21 5 FREQ 22 23 6 Backlight 23 7 SORTING SETUP ENTER 23 25 8 PC 26 9 D Q ESR ș 27 28 10 SER PAL 29 11 REL 30 31 12 HOLD 32 VI Replacing Batteries 33 VII General Specificat...

Страница 2: ... LCR meter which could measure Inductance Capacitance Resistance with secondary parameters including dissipation factor D quality factor Q phase angle ș equivalent series parallel resistance ESR or Rp This LCR Meter is fully auto ranging operation for AC impedance DC resistance measurement The user could measure the L C R components directly in AUTO LCR smart mode without selecting the function ke...

Страница 3: ...types for reactance The one is the inductive reactance XL and the other is the capacitive reactance XC 䎃䎷䏋䏈䏜䎃䏆䏒䏘䏏䏇䎃䏅䏈䎃䏇䏈䏉䏌䏑䏈䏇䎃䏄䏖䎝䎃䎃䎋䏉䎃䎠䎃䏖䏌䏊䏑䏄䏏䎃䏉䏕䏈䏔䏘䏈䏑䏆䏜䎌䎃䎃 XL 2 ʌf L䎃䎃䎃䎃䎃䎋䎯䎃䎠䎃䎬䏑䏇䏘䏆䏗䏄䏑䏆䏈䎌䎃䎃 XC 1 2 ʌf C 䎃䎃䎋䎦䎃䎠䎃䎦䏄䏓䏄䏆䏌䏗䏄䏑䏆䏈䎌䎃䎃 Measurement mode The impedance could be measured in series or parallel mode The impedance Z in parallel mode could be represented as reciprocal of admittance Y The ...

Страница 4: ...igher value capacitor For inductor the impedance relationship is different from capacitor If the inductor is small Rp is almost no effect If inductor is large the Rs is no effect also Therefore use series mode to measure lower value inductor and use parallel mode to measure higher value inductor Open short calibration process to get the better accuracy for high low impedance measurement The purpos...

Страница 5: ...provides shield for DUT device under test improvised test leads or equipments situated at places where with high interference 9 ĳ ĳĴįġŕōĮĳĴ Guard Line ĳĳįġŕōĮĳĳ SMD tweezers optional ĳĲįġ ŕōĮĳĲ Alligator Test Lead Case Rear IR to USB case optional ...

Страница 6: ... Tilt Stand 19 IR to USB Slot 20 IR to USB case optional 21 TL 21 Alligator Test Lead Case 22 TL 22 SMD tweezers optional 23 TL 23 Guard Line 11 III LCD Display Illustration LCD Display 1 Sorting Sorting function is enabled 2 Tol Tolerance indication in sorting mode 0 25 0 5 1 2 5 10 20 80 20 3 kHz Testing frequency indication 1kHz 10kHz 100kHz 100Hz 120Hz 4 PC Communication is active 5 Battery ca...

Страница 7: ...ibration ġ Indicates open calibration 13 IV Operation Instructions To access optimum precision for all L C and R measurements especially at the highest and the lowest ranges please use the alligator test leads TL 21 or improvised test leads applying to the measurement for OPEN and SHORT calibration refer to page 15 17 to reduce the parasitic effect of the test fixture before going forward the meas...

Страница 8: ...s to be calibrated to have better and precise measurements y To make better precision measurements on extremely high or low impedance ranges of L C R it is highly recommended that do OPEN SHORT calibration to reduce the parasitic effect of the test fixture before measuring y Note Remove any leads or DUT device under test from the meter during this procedure If leaving them connected will add imped...

Страница 9: ... primary display If FAIL run the procedure from the first step again Press CAL key 17 Enter short calibration mode Short alligator test leads Press CAL key Start the short calibration with 30 seconds countdown SHORT calibration is completed PASS or FAIL will appear on the primary display If FAIL run the procedure from the first step again Press CAL key Calibration is completed Return to testing mo...

Страница 10: ...ey Back to LCR AUTO test mode y When Auto L or Auto C mode is selected the impedance measurement is auto ranging y The primary display will show the parameter of inductance capacitance or resistance of DUT device under test y The secondary display will show the quality or dissipation factor of DUT device under test y The secondary parameter will be based on the L C R measurement It means that L Q ...

Страница 11: ...to DCR mode a Insert DIP component leads to the sockets directly or b To measure DIP and SMD component by Alligator Test Lead Case TL 21 If required Guard line TL 23 can provide shield for DUT device under test preventing from interference when measuring high impedance component Alligator Test Lead Case TL 21 21 c To measure SMD component by SMD tweezers TL 22 option ġ ɏʳ To make better precision ...

Страница 12: ...REQ key Back to test frequency 1 kHz y The LCR impedance scale ranges are based on the test frequency 6 Backlight y Press key to toggle backlight on off y The backlight will be disabled in 60 seconds automatically from the last operation of pushing any key or measurement 7 SORTING SETUP ENTER y These key functions are disabled in LCR AUTO mode y Press LCR AUTO key to select primary parameter measu...

Страница 13: ...surement reading is shown on the secondary display Press SETUP key Range will appear and flash Push Ż Ź key to select the position of decimal point and units based on the components you measure Press ENTER key 25 Last digit will flash Press Ż Ź key to select the desired digit Press Ÿ ź key to adjust value Press ENTER key Tol will flash Press Ż Ź key to select Tol value Each press of the key will s...

Страница 14: ...y PC communication is active PC will appear on the display Press PC key PC disappear on the display when PC communication is inactive 27 9 D Q ESR ș y In LCR Auto mode this key has no function y The D Q ESR ș key selects the secondary parameter measurement function Each press of the key will select either dissipation D quality Q ESR or phase angel ș Example In Cs testing mode Secondary display par...

Страница 15: ...rement function is selected parallel or series mode will be selected automatically based on the total equivalent impedance measured y If the impedance is more than 100kȍ will be in the parallel mode automatically Lp Cp or Rp appears on the display y If the impedance is less than 100kȍ will be in the series mode automatically Ls Cs or Rs appears on the display Example In Cs and Cp testing mode When...

Страница 16: ...UT device under test and insert another one The new reading is shown on the primary display Minus is shown on the secondary display 31 Remove the current DUT device under test and insert another one The new reading is shown on the primary display is shown on the secondary display All subsequent measurements will be displayed as a percentage value to the stored value Press REL key again ǻ flash The...

Страница 17: ...or alkaline battery Alkaline battery is recommended When replaces a new battery the sign of displays To ensure the measuring data is within spec it is suggested to replace battery immediately once displays Warning z Switch off the meter Remove all test leads and external adaptor before opening the case z Be sure to install the new batteries with correct polarities 1 Remove tilt stand 2 Loosen 4 sc...

Страница 18: ...e properly shielded to GUARD if necessary 3 To make better precision measurements on extremely high or low impedance ranges of L C R it is highly recommended that do OPEN SHORT calibration before measuring for following ranges marked with Ϯʳ Resistance Parallel Series mode Range Resolution 100 120Hz 1kHz 10kHz 100kHz 20 000ȍ 0 001ȍ ņ 1 0 3 1 0 3 2 0 3 200 00ȍ 0 01ȍ 1 0 3 0 3 2 0 3 2 0 6 3 2 0000kȍ...

Страница 19: ...00k 1Mȍ 0 6 3 0 6 3 0 6 3 0 6 3 1M 20Mȍ 1 2 5 1 2 5 1 2 5 2 5 5 2 5 5 100k 2Mȍ 20Mȍ 2 5 5 2 5 5 2 5 5 ņ ņ Do open short calibration before measuring for above ranges with to have better precision measurements If D 0 1 the accuracy should be multiplied by 2 D 1 If D 0 1 in capacitance mode ZC 1 2ʌfC If D 0 1 in inductance mode ZL 2ʌfL Sub display parameters accuracy Ae impedance Z accuracy Definiti...

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