Momwe Mungawerengere CAT Multimeter Rating: Kumvetsetsa ndi Kugwiritsa Ntchito Kuyesa Kuchuluka Kwa Voltage
Zamkatimu
Ma Multimeters ndi zida zina zoyezera magetsi nthawi zambiri amapatsidwa gawo lamagulu. Izi ndikupatsa wogwiritsa lingaliro la mphamvu yayikulu kwambiri yomwe chipangizocho chingathe kuyeza mosamala. Mavoti awa amaperekedwa monga CAT I, CAT II, CAT III, kapena CAT IV. Chiyerekezo chilichonse chikuwonetsa voteji yotetezeka kwambiri kuti muyeze.
Kodi CAT ya multimeter ndi yotani?
Category Rating (CAT) ndi kachitidwe kogwiritsidwa ntchito ndi opanga kuti adziwe kuchuluka kwa chitetezo choperekedwa ndi zida zamagetsi poyezera voteji. Mavoti amachokera ku CAT I kufika ku CAT IV kutengera mtundu wa magetsi omwe akuyezedwa.
Ndiyenera kugwiritsa ntchito liti mita yosiyana? Yankho limadalira ntchito imene ikuchitika.
Multimeters amagwiritsidwa ntchito nthawi zambiri pama mains ndi ma voltage otsika. Mwachitsanzo, kuyeza potulukira kapena kuyesa babu. Zikatere, mita ya CAT I kapena CAT II ikhala yokwanira. Komabe, mukamagwira ntchito m'malo okwera kwambiri, monga gulu lophwanyira dera, mungafunike chitetezo chowonjezera kuposa chomwe mita yokhazikika ingapereke. Apa mutha kulingalira kugwiritsa ntchito ma multimeter atsopano, apamwamba kwambiri.
Magulu osiyanasiyana ndi matanthauzo awo
Poyesa kuyeza katundu, pali miyeso 4 yovomerezeka.
CAT I: Izi zimagwiritsidwa ntchito nthawi zambiri m'mabwalo owerengera omwe amalumikizidwa mwachindunji ndi mawaya amagetsi apanyumba. Zitsanzo zimaphatikizapo zigawo zomwe sizikunyamula zamakono monga nyali, zosintha, zowonongeka, ndi zina zotero.
LETTER XNUMX: Gululi limagwiritsidwa ntchito m'malo omwe ma transients amangokhala pang'ono kuposa voteji wamba. Zitsanzo zimaphatikizapo soketi, masiwichi, mabokosi ophatikizira, ndi zina zotero. Kugunda kwamagetsi ndikokayikitsa kapena kosatheka kuchitika m'malo awa.
CAT III: Gululi limagwiritsidwa ntchito poyezera zomwe zimatengedwa pafupi ndi gwero lamagetsi, monga pamapaneli ogwiritsira ntchito ndi ma switchboards mnyumba kapena mafakitale. Kugwedezeka kwamagetsi ndikokayika kwambiri pansi pazimenezi. Komabe, zikhoza kuchitika ndi mwayi wochepa chifukwa cha kusagwira ntchito bwino. (1)
Gulu IV: Zida zomwe zili m'gululi zimagwiritsidwa ntchito kumbali yoyamba ya thiransifoma yodzipatula yokhala ndi zotchingira zolimbitsa komanso zoyezera pamizere yamagetsi yoyikidwa kunja kwa nyumba (mizere yapamtunda, zingwe).
International Electrotechnical Commission (IEC) yapanga magawo anayi amphamvu zamagetsi ndi maginito okhala ndi malingaliro oyesa kwakanthawi pa chilichonse.
| Features | CAT I | CAT II | Mphaka III | LETTER XNUMX |
| Ntchito voteji | 150V | 150V | 150V | 150V |
| 300V | 300V | 300V | 300V | |
| 600V | 600V | 600V | 600V | |
| 1000V | 1000V | 1000V | 1000V | |
| Mpweya wodutsa | 800V | 1500V | 2500V | 4000V |
| 1500V | 2500V | 4000V | 6000V | |
| 2500V | 4000V | 6000V | 8000V | |
| 4000V | 6000V | 8000V | 12000V | |
| Gwero loyeserera (impedance) | 30 ohm | 12 ohm | 2 ohm | 2 ohm |
| 30 ohm | 12 ohm | 2 ohm | 2 ohm | |
| 30 ohm | 12 ohm | 2 ohm | 2 ohm | |
| 30 ohm | 12 ohm | 2 ohm | 2 ohm | |
| Panopa ntchito | 5A | 12.5A | 75A | 75A |
| 10A | 25A | 150A | 150A | |
| 20A | 50A | 300A | 300A | |
| 33.3A | 83.3A | 500A | 500A | |
| Kanthawi kochepa | 26.6A | 125A | 1250A | 2000A |
| 50A | 208.3A | 2000A | 3000A | |
| 83.3A | 333.3A | 3000A | 4000A | |
| 133.3A | 500A | 4000A | 6000A |
Momwe CAT multimeter rating system imagwirira ntchito
Ma multimeter omwe amagwiritsidwa ntchito kwambiri pamsika amagwera m'magulu awiri: CAT I ndi CAT III. CAT I multimeter imagwiritsidwa ntchito kuyeza voteji mpaka 600V, pamene CAT III multimeter imagwiritsidwa ntchito mpaka 1000V. Chilichonse pamwamba chomwe chimafuna kalasi yapamwamba kwambiri, monga CAT II ndi IV, yopangidwira 10,000V ndi 20,000V motsatira.
Chitsanzo chogwiritsa ntchito CAT multimeter rating system
Tiyerekeze kuti mukuyang'ana magetsi a m'nyumba mwanu. Muyenera kuyang'ana mawaya angapo. Mawayawa amalumikizidwa mwachindunji ndi chingwe chachikulu chamagetsi (240 Volts). Kuwakhudza molakwa kungachititse munthu kuvulala kwambiri kapena kufa. Kuti muyese bwino muzochitika izi, mudzafunika ma multimeter apamwamba kwambiri (CAT II kapena apamwamba) omwe angakutetezeni inu ndi zida zanu ku kuwonongeka kobwera chifukwa cha kuchuluka kwamphamvu kwamphamvu. (2)
Onani zina mwazolemba zathu pansipa.
- Momwe mungayesere magetsi a DC ndi multimeter
- Momwe mungagwiritsire ntchito multimeter kuti muwone mphamvu ya mawaya amoyo
- Momwe mungayesere ma amps ndi multimeter
ayamikira
(1) mafakitale - https://www.sciencedirect.com/topics/social-sciences/industrial-facilities
(2) milingo yamphamvu - https://www.sciencedirect.com/topics/earth-and-planetary-sciences/energy-levels
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