Yuav ua li cas tuav lub clamp ammeter
Lub clamp ammeter yog ib yam khoom siv los ntsuas qhov tam sim no ntawm cov hluav taws xob khiav hluav taws xob. Nws tuaj yeem ntsuas ncaj qha rau kev ua haujlwm tam sim no ntawm cov khoom siv khiav yam tsis muaj kev cuam tshuam lub zog thiab lub voj voog. Tsis tas li ntawd, nws tseem tuaj yeem ntsuas AC thiab DC voltage, tsis kam thiab dhau qhov kev xeem.
Muaj ntau ntau hom clamp ammeters, tab sis lawv cov duab zoo ib yam, raws li qhia hauv daim duab 9-13. Nws txoj kev siv yog raws li nram no:
(1) Cov teeb meem xav tau kev saib xyuas thaum siv clamp ammeter
① Kwv yees qhov loj me ntawm qhov ntsuas tam sim no ua ntej ntsuas, thiab xaiv qhov tsim nyog.
② Thaum ntsuas, cov xaim nqa tam sim no yuav tsum tau muab tso rau hauv nruab nrab ntawm lub puab tsaig kom tsis txhob muaj qhov yuam kev. Rau kev ntsuas ntawm cov hlau tsis tshua muaj tam sim no, txhawm rau txhim kho qhov tseeb, yog tias cov xwm txheej tso cai, koj tuaj yeem ua kom cov hlau nyob hauv kev sim ob peb zaug, thiab muab tso rau hauv lub puab tsaig rau kev ntsuas. Tus nqi tam sim no yog sib npaug ntawm kev nyeem cov ' meter ' muab faib los ntawm cov xov tooj ntawm cov hlau coils.
③ Yog tias muaj suab nrov thaum ntsuas, nws txhais tau hais tias lub puab tsaig tsis zoo nrog cov xov hlau. Koj tuaj yeem qhib thiab kaw lub puab tsaig dua. Yog tias tseem muaj suab nrov, koj tuaj yeem siv roj av los ntxuav lub puab tsaig ua ntej ntsuas.
(2) Kev ntsuas kev ua haujlwm
① AC zog ntsuas. Tig qhov hloov mus rau ACA1000A iav. Tawm ntawm qhov hloov mus rau qhov chaw so. Nias lub khawm kom qhib lub puab tsaig, tuav ib lub xaim, thiab nyeem tus nqi. Yog tias qhov kev nyeem ntawv tsawg dua 200A, tig mus rau ACA200A txhawm rau txhim kho qhov tseeb ntawm kev nyeem ntawv.
② AC thiab DC voltage ntsuas. Thaum ntsuas DC voltage, tig mus rau DCV1000; Thaum ntsuas AC voltage, tig qhov hloov mus rau ACV750V, thiab khaws lub hloov mus rau hauv lub xeev so. Txuas cov liab xeem coj mus rau "VΩ" davhlau ya nyob twg, qhov kev xeem dub coj mus rau "COM" davhlau ya nyob twg, ces txuas cov liab thiab dub xeem coj mus rau lub Circuit Court nyob rau hauv kev xeem nyob rau hauv parallel, thiab tus nqi nyeem ntawv yog qhov tseeb voltage ntawm lub Circuit Court. .
③ Kev ntsuas kev tiv thaiv. Tig qhov hloov mus rau qhov hluav taws xob tsis kam ntawm qhov tsim nyog. Tawm ntawm qhov hloov mus rau qhov chaw so. Cov hlau kuaj liab txuas nrog "VΩ" davhlau ya nyob twg, thiab cov hlau kuaj dub txuas nrog lub davhlau ya nyob twg "COM". Txuas qhov kev xeem liab thiab dub ua rau ob qho kawg ntawm qhov ntsuas tsis kam, thiab tus nqi nyeem ntawv yog qhov tseeb tsis kam ntawm qhov ntsuas tsis kam.
Nco tseg: Thaum ntsuas kev tiv thaiv hauv online, cov kab yuav tsum raug kaw thiab lub capacitor txuas nrog lub resistor yuav tsum raug tso tawm.
④ Kev ntsuas txuas ntxiv. Tig qhov hloov mus rau 200Ω, txuas cov kev xeem liab coj mus rau "VΩ" davhlau ya nyob twg, thiab qhov kev sim dub coj mus rau "COM" davhlau ya nyob twg. Yog hais tias lub buzzer nyob rau hauv lub 'meter' suab, nws txhais tau hais tias qhov kev tiv thaiv ntawm cov liab thiab dub xeem leads yog tsawg tshaj li 50 ± 2.5Ω.
