Multimeter: Ib qho cuab yeej txhim khu kev qha rau kev kuaj xyuas Fuse Faults
1. Kev nyab xeeb ua ntej, kev ua haujlwm tau zoo
Ua ntej siv Fluke multimeter los kuaj fuses, kev nyab xeeb yog qhov tseem ceeb tshaj plaws. Nco ntsoov xyuas kom meej tias lub hom phiaj Circuit Court tau raug kaw thiab txiav tawm los ntawm ib qho chaw fais fab kom tsis txhob muaj hluav taws xob poob lossis kev puas tsuaj ntxiv rau lub voj voog. Nyob rau tib lub sijhawm, hnav cov khoom tiv thaiv tus kheej tsim nyog xws li cov hnab looj tes insulated thiab tsom iav kom muaj kev nyab xeeb.
2. Teeb lub multimeter thiab npaj nws
Pib lub Fluke multimeter thiab teeb nws mus rau hauv / tawm hom lossis hom tsis kam. Hom kev txuas ntxiv yog hom nyiam tshaj plaws rau kev kuaj xyuas fuses, vim tias thaum lub fuse tsis zoo, lub tshuab multimeter yuav tawm suab meej meej, uas yog qhov yooj yim thiab yooj yim. Tom qab teeb tsa hom, tsis txhob hnov qab xyuas qhov ua haujlwm ntawm multimeter. Kov ob lub probes ua ke los kuaj seb lub multimeter puas ua haujlwm zoo. Nyob rau hauv hom on-off, lub multimeter yuav tsum emit suab beep; Hauv hom kev tiv thaiv, kev nyeem ntawv tsis zoo (feem ntau yog 0 lossis ze rau 0) yuav tsum tau tso tawm.
3. Txuas qhov kev sojntsuam thiab kuaj lub fuse
Txuas qhov kev sojntsuam ntawm Fluke multimeter mus rau ob qhov kawg ntawm lub fuse, kom ntseeg tau tias kev sib cuag nrog cov fuse terminals. Cov kauj ruam no yuav zoo li yooj yim, tab sis nws tseem ceeb heev. Vim tias ib qho kev sib cuag tsis zoo tuaj yeem ua rau qhov ntsuas tsis raug, yog li misjudging cov xwm txheej ntawm lub fuse.
4. Txhais cov kev nyeem ntawv thiab txiav txim qhov xwm txheej
Nyob rau hauv hom on-off, yog Fluke multimeter emissions buzzing suab, nws qhia tau hais tias lub fuse yog lawm thiab txoj kev tam sim no tiav. Ntawm qhov tsis sib xws, yog tias tsis muaj lub suab nrov, nws qhia tau tias lub fuse tau tawg. Hauv hom kev tiv thaiv, kev nyeem ntawv tsis tshua muaj siab (feem ntau yog 0 Ω lossis ze rau 0 Ω) qhia tias lub fuse ua haujlwm zoo, thaum kev nyeem ntawv tsis kawg (feem ntau yog "OL" lossis "1" ntawm digital multimeter) qhia tias lub fuse tau tshuab.
5. Kev tshuaj xyuas qhov tshwm sim, ob qhov kev lees paub
Txawm hais tias multimeter tau muab cov txiaj ntsig ntsuas qhov tseeb, ua qhov kev tshuaj xyuas qhov muag tseem yog tus cwj pwm zoo. Saib xyuas seb puas muaj cov cim pom tseeb ntawm kev puas tsuaj rau lub fuse, xws li kev puas tsuaj sab hauv, blackened lossis burnt tsos, thiab lwm yam. Cov cim qhia no tuaj yeem paub meej ntxiv txog cov xwm txheej ntawm lub fuse, kom ntseeg tau qhov tseeb ntawm kev kuaj mob.
