Nkibikoresho byingenzi murwego rwo gupima ingufu, igipimo cyo gupima metero y'amashanyarazi kigena mu buryo butaziguye ibintu byakoreshwa no kwizerwa kwamakuru. Mu buryo bwa siyansi gusobanura ibipimo bya metero ni ngombwa mu kwemeza ingufu zingana neza, guhuza sisitemu, n'umutekano w'abakoresha.
Urebye muburyo bwa tekiniki, igipimo cyo gupima metero y'amashanyarazi mubusanzwe kigizwe n'ibipimo bibiri by'ingenzi: "igipimo cyagenwe" na "umuyaga mwinshi." Kubisanzwe - icyiciro cya elegitoroniki yingufu za elegitoronike, kurugero, igipimo cyagenwe (urugero, 5A, 10A) cyerekana agaciro fatizo kubikorwa birebire - mikorere ihamye mugihe gisanzwe gikora, mugihe icyerekezo kinini (urugero, 60A, 80A) cyerekana metero ngufi - kwihanganira umutwaro ntarengwa. Kurenza agaciro birashobora gutera ibice gushyuha cyangwa kongera amakosa yo gupima. Kuri metero eshatu - icyiciro cyamashanyarazi yinganda, urwego rwo gupima rugomba kuba rwujuje ibyangombwa bisabwa. Moderi zimwe zishyigikira igipimo kinini cyo gupima 0.1A kugeza 200A hamwe na 0.5S - urwego rwukuri, ndetse rushobora no kwagurwa kugera kuri kiloampere hamwe na shunt yo hanze.
Ibipimo bya metero bisabwa biratandukanye cyane muburyo butandukanye bwo gusaba. Muburyo bwo gukoresha amashanyarazi atuye, metero zisanzwe zitwara umutwaro wose wurugo wa 3kW kugeza 10kW (bihuye numuyoboro wa 13A kugeza 45A). Ibi ntibishobora gusa gukenera ibikoresho byamashanyarazi bya buri munsi, ahubwo binemerera guhuza ibikoresho byamashanyarazi - nkibikoresho byumuyaga hamwe nubushyuhe bwamazi. Inganda nubucuruzi bisaba urwego ruhanitse. Kurugero, ibyumba byamakuru byamakuru birashobora kuba bifite metero zubwenge zifite intera ya 200A cyangwa irenga kugirango ikurikirane ako kanya umutwaro wimikorere ya seriveri. Imashanyarazi ishobora kongera ingufu - sisitemu ihujwe, metero zigomba kandi gushyigikira ibipimo byombi (ibisekuruza nibikoreshwa), kandi igishushanyo mbonera kigomba gufata neza byombi imbere ninyuma.
Ni ngombwa kumenya ko guhitamo metero intera atari ngombwa byanze bikunze. Imiyoboro ihanitse cyane irashobora kugabanya ubukana bwa metero mugihe cyumutwaro muke (urugero, metero 100A irashobora guhura nikosa mugihe upimye 5A), mugihe urwego ruto cyane rushobora kongera ibyago byo kurenza urugero. Imetero yubwenge igezweho iringaniza iyi mpagarara binyuze muri byinshi - urwego rwikoranabuhanga rwo guhinduranya byikora (nkibishushanyo mbonera byagereranijwe). Module yitumanaho irashobora kandi gushiraho imyirondoro yumutwaro mugihe nyacyo, ifasha abakoresha gukoresha neza amashanyarazi. Kugereranya ibipimo bya metero ni ikintu gisabwa cyane mu bipimo bya tekiniki kandi ni ikintu cy'ingenzi mu gucunga neza ingufu. Mugihe sisitemu yububasha igenda irushaho kugira ubwenge, guhuza ibipimo bya metero neza bizakomeza kuba impungenge zinganda.