Yuav ua li cas txiav txim qhov zoo ntawm DC tam sim no ntau yam (DCA) ntawm multimeter?
Teb: Yog tias muaj qhov paub tam sim no, nkag ncaj qha rau hauv qhov tam sim no. Yog tsis yog, tsis muaj teeb meem. Tsuas yog input qhov voltage nyob rau hauv lub tam sim no ntau yam. tus nqi, thov nco ntsoov cov hauv qab no:
A. Thov tsis txhob nkag siab qhov hluav taws xob ntau dhau, kom tsis txhob ua rau tam sim no ntau dhau thiab ua rau lub ntsuas hluav taws xob puas. Cov khoom siv uas tuaj yeem nkag tau yog cov roj teeb zoo tib yam, xws li No.5, No.7, thiab lwm yam;
B. Thaum ntsuas qhov tam sim no ntawm qhov input voltage, vim qhov tsis kam (load) ntawm qhov ntsuas sab hauv ntawm qhov ntsuas me me, yog tias cov tswv yim ntev dhau lawm, qhov chaw yuav raug puas tsuaj, yog li sim tsis pub dhau 5 vib nas this rau ib qho ib qho kev tawm tswv yim;
C. Txhua qhov siab thiab qis, qhov nyob ib sab, feem ntau muaj kev sib raug zoo ntawm 10 zaug.
