Yuav ua li cas koj sai sai kuaj yog hais tias ib tug multimeter fuse ua hauj lwm?
Rau cov engineers uas nquag ua haujlwm nrog hluav taws xob, "kev nyab xeeb" yog qhov tseem ceeb tshaj plaws los xav txog. Thiab lub multimeter yog ib qho tseem ceeb rau kev soj ntsuam cov cuab yeej hluav taws xob, yog li kev nyab xeeb ntawm kev siv multimeters yog qhov tseem ceeb tshwj xeeb rau cov engineers pem hauv ntej. Raws li peb txhua tus paub, lub multimeter muaj ib tug ua tau - nyob rau hauv fuse nyob rau hauv lub tam sim no ntau yam, uas yog tsim los xyuas kom meej tias thaum kuaj tam sim no, lub multimeter txuas nyob rau hauv series mus rau lub Circuit Court. Yog tias qhov hluav taws xob tam sim no dhau qhov kev txwv lossis muaj qhov txaus ntshai tam sim no, lub fuse tuaj yeem tawg rau lub sijhawm kom ntseeg tau tias muaj kev nyab xeeb ntawm cov cuab yeej, tshwj xeeb tshaj yog tus neeg teb xov tooj.
Yuav xaiv lub fuse zoo li cas?
Txhawm rau kom muaj kev nyab xeeb ntawm ob lub cuab yeej thiab tus neeg siv, xaiv lub fuse tsim nyog thiab kev nyab xeeb yog qhov tseem ceeb heev. Fluke multimeters tau nruab nrog siab- zog, ultra- nrawm- teb cov fuses qub, ua kom ntseeg tau tias thaum muaj xwm txheej, lub cuab yeej tuaj yeem tiv thaiv kev phom sij sai. Fluke thawj fuses yeej ib txwm tsim los ua kom tau raws li qhov xav tau ntawm cov qauv kev nyab xeeb thoob ntiaj teb.
Qhov zoo ntawm Fluke fuses:
1. Rated voltage ntawm 1000V, nrog 11A fuse muaj peev xwm tawg ntawm 20KA. Tus thawj siab - zog fuse tsis tsuas yog melts nyob rau hauv nruam ntsuas tam sim no, tab sis kuj instantly melts nyob rau hauv siab heev instantaneous tam sim no, kom ntseeg tau ceev ceev thiab kev nyab xeeb
2. Ceramic raj ntim boasts muaj zog arc -extinguishing muaj peev xwm thiab muaj kev ntseeg siab. Qhov tshwj xeeb tsim thawj siab - lub zog fuse yog ntim nrog cov xuab zeb, uas yaj thaum lub zog thiab qhov kub txaus los ua kom tawg tau tsim, nqus lub zog thiab cais cov huab cua uas xav tau rau kev tawg tawg.
Kev phom sij ntawm kev siv lub fuse tsis raug:
Cov cuab yeej raug hlawv; pen meters melted; thiab tau muaj kev raug mob.
Nws yog qhov zoo dua kom tsis txhob nruab ib lub fuse tag nrho tshaj li nruab ib qho yooj yim!
Yuav ua li cas sai sai xyuas seb lub fuse puas zoo los yog phem?
Teem lub multimeter mus rau qhov "Ω", siv ib qho kev sojntsuam xwb. Ntxig qhov ntsuas qhov ntsuas rau hauv "Ω" jack, thiab tom qab ntawd ntxig cov lus qhia sojntsuam rau hauv "A" thiab "mA / uA" jacks feem. Yog tias muaj kev nyeem ntawv, nws qhia tau tias lub fuse zoo ("A" jack nyeem ntawv yuav tsum nyob nruab nrab ntawm 0-0.5Ω, thiab "mA / uA" jack nyeem yuav tsum nyob ib ncig ntawm 10KΩ). Yog tias "OL" tshwm sim, nws qhia tau tias lub fuse tau tawg.
