Yuav ua li cas siv ohm block ntawm multimeter
(1) Xaiv qhov tsim nyog magnification. Thaum ntsuas qhov tsis kam nrog lub ohmmeter, qhov kev nthuav dav tsim nyog yuav tsum raug xaiv kom tus pointer qhia ze rau tus nqi nruab nrab. Nws yog qhov zoo tshaj plaws tsis txhob siv sab laug thib peb ntawm qhov ntsuas, vim qhov no ntawm qhov ntsuas tsis zoo.
(2) Kev hloov kho xoom yog yuav tsum tau ua ntej siv.
(3) Tsis txhob ntsuas thaum muaj hluav taws xob.
(4) Kev ntsuas qhov ntsuas tsis tuaj yeem muaj cov ceg sib txuas.
(5) Thaum ntsuas qhov sib npaug ntawm cov khoom siv polar xws li transistors thiab electrolytic capacitors, koj yuav tsum xyuam xim rau qhov polarity ntawm ob tus cwj mem.
(6) Thaum ntsuas qhov sib npaug ntawm cov khoom tsis sib xws nrog ohmic blocks ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, qhov ntsuas qhov ntsuas tsis sib txawv. Qhov no yog tshwm sim los ntawm qhov sib txawv nruab nrab tsis kam thiab tag nrho cov nplai tam sim no ntawm txhua lub iav. Nyob rau hauv mechanical watches, feem ntau qhov me dua qhov magnification, qhov me me qhov ntsuas tsis kam.
Thaum ntsuas DC nrog multimeter
(1) Ua kev hloov kho tshuab xoom.
(2) Xaiv qhov ntsuas qhov tsim nyog.
(3) Thaum siv multimeter los ntsuas tam sim no, lub multimeter yuav tsum tau txuas nrog hauv series hauv kev ntsuas Circuit Court, vim hais tias tsuas yog ib qho kev sib txuas tuaj yeem ua rau tam sim no ntws los ntawm ammeter tib yam li cov ceg ntsuas tam sim no. Thaum ntsuas, ceg Circuit Court nyob rau hauv kev sim yuav tsum tau txiav, thiab cov liab thiab dub xeem coj ntawm lub multimeter yuav tsum tau txuas nyob rau hauv series ntawm ob lub ntsiab lus disconnected ntawm lub quilt. Kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov tseeb tias lub kaw lus tam sim no tuaj yeem txuas nrog rau qhov sib npaug ntawm qhov ntsuas ntsuas hluav taws xob. Ua li ntawd yog qhov txaus ntshai heev thiab tuaj yeem yooj yim ua rau lub tshuab hluav taws xob hlawv tawm.
(4) Ua tib zoo saib qhov polarity ntawm cov hluav taws xob ntsuas.
(5) Siv cov nplai thiab nyeem kom raug.
(6) Thaum xaiv 2.5A DC tam sim no iav, tus cwj mem liab ntawm multimeter yuav tsum tau muab tso rau hauv 2.5A ntsuas jack, thiab qhov hloov pauv tuaj yeem muab tso rau hauv txhua qhov ntawm DC tam sim no iav.
(7) Yog tias DC tam sim no ntsuas los ntawm quilt ntau dua 2.5A, 2.5A iav tuaj yeem nthuav dav mus rau 5A iav. Txoj kev no yooj yim heev. Tus neeg siv tuaj yeem txuas tus 0.24 ohm resistor nruab nrab ntawm "2.5A" jack thiab cov khoom siv hluav taws xob dub, kom cov qib tam sim no dhau los ua qib 5A tam sim no. Qhov txuas txuas 0.24A resistor yuav tsum yog cov kab hluav taws xob ntawm ntau tshaj 2W. Yog lub hwj chim me dhau, nws yuav hlawv.
