Yuav ua li cas siv lub multimeter
(1) Qhov hluav taws xob qis dua 36V yog qhov hluav taws xob muaj kev nyab xeeb. Thaum ntsuas siab tshaj 36V DC thiab 25V AC, nws yog ib qho tsim nyog yuav tsum tau xyuas seb qhov kev xeem coj mus kuaj puas muaj kev sib cuag tau zoo, seb lawv puas tau txuas nrog raug, seb lawv puas zoo insulated, thiab lwm yam kom tsis txhob muaj hluav taws xob poob.
(2) Thaum hloov qhov kev ua haujlwm thiab ntau yam, cov hlau lead yuav tsum tawm ntawm qhov ntsuas qhov ntsuas, xaiv qhov muaj nuj nqi thiab ntau yam thaum lub sij hawm xeem, thiab ceev faj txog kev ua haujlwm tsis raug.
(3) Rau DC qhov ntsuas hluav taws xob, ua ntej tig qhov hloov pauv mus rau qhov sib txuas DCV ntau yam, tom qab ntawd txuas cov ntawv xeem coj hla lub voj voog hauv qab kev sim, thiab qhov hluav taws xob thiab polarity ntawm cov ntsiab lus txuas nrog cov hlau kuaj liab yuav tshwm rau ntawm qhov screen. .
(4) Rau kev ntsuas AC voltage, ua ntej tig qhov hloov pauv mus rau qhov sib thooj ACV ntau yam, thiab tom qab ntawd txuas cov hlau lead hla lub voj voog hauv kev sim.
(5) Rau DC tam sim no ntsuas, ua ntej tig qhov hloov pauv mus rau qhov sib thooj DCA iav, thiab tom qab ntawd txuas lub ntsuas hluav taws xob rau hauv Circuit Court hauv kev sim.
(6) Rau kev ntsuas AC tam sim no, ua ntej tig qhov hloov pauv mus rau qhov sib thooj ACA txoj haujlwm, thiab tom qab ntawd txuas lub ntsuas hluav taws xob mus rau hauv Circuit Court hauv kev sim.
(7) Rau kev ntsuas kev tiv thaiv, tig qhov hloov pauv mus rau qhov sib npaug ntawm qhov sib npaug, thiab txuas ob lub ntsuas ntsuas thoob plaws qhov kev tiv thaiv kom ntsuas.
(8) Kev ntsuas lub peev xwm, tig qhov hloov pauv mus rau qhov sib npaug ntawm cov khoom siv hluav taws xob, thiab txuas cov khoom siv ntsuas hluav taws xob hla lub ntsuas hluav taws xob ntsuas thiab ob qhov kawg los ntsuas, thiab xyuam xim rau qhov polarity yog tias tsim nyog.
(9) Rau cov kav raj thiab qhov kev sim tawm, teem caij hloov mus rau iav. Txuas lub meter liab mus rau anode ntawm lub diode, thiab lub ntsuas dub rau lub cathode ntawm diode. Yog tias txoj kab xeem nyob rau lossis tawm, txuas qhov kev xeem ua rau ob qho kawg ntawm kab yuav raug kuaj. Yog hais tias lub buzzer suab, lub Circuit Court yog txuas, txwv tsis pub lub Circuit Court yog disconnected.
(10) Txhawm rau ntsuas qhov kev nthuav dav ntawm lub raj, teeb qhov hloov pauv mus rau hFE txoj haujlwm los txiav txim siab seb lub transistor yuav tsum ntsuas yog NPN hom lossis PNP hom, thiab ntxig lub emitter, puag thiab sau rau hauv cov qhov sib thooj.
