(1) Xyuas seb lub roj teeb tawm ntawm lub tsheb fais fab puas zoo li qub. Yog tias qhov tso zis tsawg dhau, lub roj teeb tsis zoo. Lub roj teeb yuav tsum tau hloov sai sai.
(2) Rub tawm lub nres cable. Yog tias kev sib hloov ntawm lub tsheb ua pov thawj tias tus kov tau tawg, tus kov yuav tsum tau hloov lossis kho nrog Table 2 thiab tus kov yuav tsum tau kuaj xyuas (qhov ntev-kaw kov).
(3) Txheeb xyuas qhov kev sib hloov thiab siv cov hlau hlau kom luv luv ntawm txoj hlua tig thiab cov kab teeb liab. Yog hais tias lub tsheb tig, nws ua pov thawj tias txoj hlua tig tsis zoo thiab yuav tsum tau hloov lossis kho sai sai. Tig lub hwj chim thiab tig lub kov nrog ib tug multimeter los ntsuas qhov zoo 5V<1-4>ntawm cov kab zoo thiab cov teeb liab.
(4) Txawm hais tias tus maub los zoo lossis phem, koj tuaj yeem luv luv-circuit qhov zoo 5V ntawm tus kov hlau. Yog hais tias tus kov tig, nws txhais tau hais tias tus maub los zoo. Qhov yooj yim tshaj plaws yog kom hnov tsw tus maub los saib seb nws tsw tsw qab. Yog tias muaj, nws txhais tau hais tias tus tswj tau tawg.
(5) Tshawb xyuas qhov zoo ntawm lub cev muaj zog. Yog tias qhov kev sib cuag ntawm lub cev muaj zog carbon txhuam tsis yog tiag tiag, nws tseem yuav ua rau lub zog tsis mus.
