Mokhoa oa ho bala CAT Multimeter Rating: Ho utloisisa le ho sebelisa ho lekola matla a phahameng a matla
Tse ka hare
Li-multimeters le lisebelisoa tse ling tsa tlhahlobo ea motlakase hangata li abeloa boemo ba sehlopha. Sena ke ho fa mosebelisi mohopolo oa matla a phahameng ao sesebelisoa se ka lekanyang ka mokhoa o sireletsehileng. Lintlha tsena li hlahisoa e le CAT I, CAT II, CAT III, kapa CAT IV. Tekanyetso ka 'ngoe e bonts'a matla a phahameng a motlakase a bolokehileng ao a lokelang ho a lekanyetsoa.
Tekanyetso ea CAT ea multimeter ke efe?
Category Rating (CAT) ke sistimi e sebelisoang ke bahlahisi ho tseba boemo ba ts'ireletso e fanoang ke lisebelisoa tsa motlakase ha ba metha voltage. Litekanyo li tloha ho CAT I ho ea ho CAT IV ho latela mofuta oa motlakase o lekantsoeng.
Ke lokela ho sebelisa metara ea sehlopha se fapaneng neng? Karabo e itšetlehile ka mosebetsi o etsoang.
Li-multimeter li sebelisoa hangata lits'ebetsong tse kholo le tse tlase tsa motlakase. Ho etsa mohlala, ho metha lebone kapa ho lekola tleloubu. Maemong ana, limithara tsa CAT I kapa tsa CAT II li tla lekana haholo. Leha ho le joalo, ha o sebetsa libakeng tse phahameng tsa motlakase, joalo ka phanele ea sekhechana sa potoloho, o kanna oa hloka ts'ireletso e eketsehileng ea surge ho feta eo meter e tloaelehileng e ka fanang ka eona. Mona o ka nahana ka ho sebelisa multimeter e ncha, e holimo haholo.
Lihlopha tse fapaneng le litlhaloso tsa tsona
Ha u leka ho metha mojaro, ho na le maemo a 4 a amohelehang a tekanyo.
CAT I: Sena se sebelisoa hangata lipotolohong tsa metering tse hokahaneng ka kotloloho le sistimi ea methapo ea motlakase ea moaho. Mehlala e kenyelletsa likarolo tse sa sebetseng tse kang mabone, li-switches, li-circuit breakers, joalo-joalo.
LENGOLO LA XNUMX: Sehlopha sena se sebelisoa libakeng tseo li-transients li leng ka holim'a motlakase o tloaelehileng. Mehlala e kenyelletsa li-sockets, li-switches, mabokose a mateano, joalo-joalo. Ho tsosoa ha motlakase ho ke ke ha etsahala kapa ha ho bonolo ho etsahala libakeng tsena.
CAT III: Sehlopha sena se sebelisetsoa litekanyo tse nkuoeng haufi le mohloli oa matla, joalo ka liphanele tsa lisebelisoa le liboto tsa meaho kapa litsing tsa indasteri. Ho tsosoa ha motlakase ha ho bonolo haholo tlas'a maemo ana. Leha ho le joalo, li ka etsahala ka monyetla o tlase ka lebaka la ho se sebetse hantle. (1)
Sehlopha sa IV: Lisebelisoa tse kenyellelitsoeng sehlopheng sena li sebelisoa ka lehlakoreng le ka sehloohong la transformer e itšehlang thajana e nang le insulation e matlafalitsoeng le litekanyo holim'a mehala ea motlakase e behiloeng ka ntle ho meaho (lithapo tse ka holimo, likhoele).
Khomishene ea Machabeng ea Motlakase (IEC) e thehile maemo a mane a matla a matla a motlakase le a makenete ka likhothaletso tsa tlhahlobo ea nakoana bakeng sa se seng le se seng.
| Features | KATSE I | CAT II | KATENG III | LENGOLO LA XNUMX |
| Sebetsa gagamalo | 150V | 150V | 150V | 150V |
| 300V | 300V | 300V | 300V | |
| 600V | 600V | 600V | 600V | |
| 1000V | 1000V | 1000V | 1000V | |
| Matla a nakoana | 800V | 1500V | 2500V | 4000V |
| 1500V | 2500V | 4000V | 6000V | |
| 2500V | 4000V | 6000V | 8000V | |
| 4000V | 6000V | 8000V | 12000V | |
| Mohloli oa liteko (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 | |
| Ts'ebetso ea hona joale | 5A | 12.5A | 75A | 75A |
| 10A | 25A | 150A | 150A | |
| 20A | 50A | 300A | 300A | |
| 33.3A | 83.3A | 500A | 500A | |
| Nako ea nakoana | 26.6A | 125A | 1250A | 2000A |
| 50A | 208.3A | 2000A | 3000A | |
| 83.3A | 333.3A | 3000A | 4000A | |
| 133.3A | 500A | 4000A | 6000A |
Mokhoa oa ho lekanya li-multimeter CAT o sebetsa joang
Li-multimeter tse sebelisoang haholo 'marakeng li oela likarolong tse peli: CAT I le CAT III. Multimeter ea CAT I e sebelisetsoa ho lekanya motlakase ho fihlela ho 600V, ha multimeter ea CAT III e sebelisoa ho fihlela ho 1000V. Ntho leha e le efe e ka holimo e hlokang sehlopha se phahameng le ho feta, tse kang CAT II le IV, tse etselitsoeng 10,000V le 20,000V ka ho latellana.
Mohlala oa ho sebelisa CAT multimeter rating system
Nka hore u shebile phanele ea motlakase ea ntlo ea hau. U hloka ho hlahloba lithapo tse 'maloa. Lithapo li hokahane ka kotloloho ho mohala o moholo oa matla (240 Volts). Ho li ama ka phoso ho ka fella ka kotsi e tebileng kapa lefu. Ho nka litekanyo ka mokhoa o sireletsehileng boemong bona, o tla hloka multimeter ea boemo bo holimo (CAT II kapa ho feta) e tla u sireletsa le lisebelisoa tsa hau tšenyong e bakiloeng ke maemo a phahameng a matla. (2)
Sheba tse ling tsa lingoliloeng tsa rona tse ka tlase.
- Mokhoa oa ho lekanya motlakase oa DC ka multimeter
- Mokhoa oa ho sebelisa multimeter ho lekola voltage ea lithapo tse phelang
- Mokhoa oa ho lekanya li-amps ka multimeter
likhothaletso
(1) lisebelisoa tsa indasteri - https://www.sciencedirect.com/topics/social-sciences/industrial-facilities
(2) maemo a matla - https://www.sciencedirect.com/topics/earth-and-planetary-sciences/energy-levels
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