Txhawm rau kom ntseeg tau tias qhov tseeb thiab kev nyab xeeb ntawm kev ntsuas, cov kev tshuaj xyuas hauv qab no yuav tsum tau ua rau ntawm qhov ntsuas av tiv thaiv clamp ua ntej siv:
1. Kev tshuaj xyuas qhov muag: yuav tsum tsis muaj qhov tsis zoo xws li kev puas tsuaj. Tshwj xeeb, lub puab tsaig yuav tsum raug kaw kom nruj, thiab cov tub ntxhais hlau yuav tsum tsis muaj xeb thiab av; 2. Yog hais tias nws yog ib tug neeg kho tshuab pointer hom grounding kuj clamp meter, lub sij hawm no Lub pointer yuav tsum taw tes rau "0", txwv tsis pub nws yuav tsum tau kho rau "0"; 3. Kwv yees qhov loj ntawm qhov ntsuas tam sim no thiab xaiv cov iav tsim nyog. Lub hauv paus ntsiab lus ntawm kev xaiv iav yog: kho tus nqi ntau dua li qhov ntsuas tus nqi thiab ze rau ib qho chaw nres.
Thaum ntsuas, qhib lub puab tsaig, clamp cov hlau los ntsuas rau hauv lub puab tsaig, kaw lub puab tsaig, thiab deflect lub koob los nyeem cov ntsuas tam sim no. Ua ntej nyeem ntawv, lub grounding resistance clamp meter yuav tsum tiaj tus li sai tau (mechanical pointer type Ground resistance clamp meter), digital ground resistance clamp meter tsis muaj teeb meem.
Ceev faj thaum ntsuas
1. Cov hnab looj tes yuav tsum nqa thaum lub sijhawm kuaj (cov hnab looj tes insulated yuav tsum huv thiab qhuav cov hnab looj tes), thiab tus neeg saib xyuas yuav tsum tau teeb tsa yog tias tsim nyog; 2. Thaum hloov kev ntsuas, cov hlau yuav tsum tau muab tshem tawm ntawm lub puab tsaig ua ntej, thiab tom qab ntawd cov hlau yuav tsum tau clamped los ntsuas; 3. Qhov voltage ntawm tus neeg xyuas pib nyob rau hauv kev ntsuas tsis tuaj yeem tshaj qhov voltage ntawm lub grounding resistance clamp meter; 4. Nws yog txwv tsis pub siv lub grounding resistance clamp meter rau kev ntsuas nrog cov rwb thaiv tsev tsis zoo thiab cov conductors; Ceev faj tsis txhob ua rau theem-rau-theem luv luv thiab theem-rau-hauv av luv luv; 6. Nws tsis haum rau ntsuas kab tam sim no nyob rau hauv qhov kub thiab txias ib puag ncig, thiab nws tsis haum rau ntsuas nyob ze ntawm cov hlau nplaum muaj zog. Sab nraud magnetic teb muaj kev cuam tshuam zoo rau qhov ntsuas tus nqi. Yog tias qhov ntsuas tau ua tiav ntawm ib sab ntawm cov khoom siv high-load tam sim no, nws yuav tsum tau ntsuas nyob rau hauv lwm qhov chaw kom txo tau qhov yuam kev luv luv Circuit Court los ntawm cov hlau nplaum; 7. Nws tsis haum rau kev ntsuas hauv qhov chaw ntub dej thiab nag xob nag cua, vim hais tias cov av tiv thaiv clamp meter yuav tsum tau ntsuas ncaj qha los ntawm tes, thiab cov khoom siv hluav taws xob khiav, lub puab tsaig, tes thiab tes ntawm cov neeg ua haujlwm ntsuas yuav tsum tau ua kom huv si thiab qhuav. thaum ntsuas; 8. Qhov kev ntsuas qhov yuam kev ntawm qhov tsis muaj qhov ntsuas tam sim no los ntawm qhov ntsuas qhov ntsuas hauv av yog qhov loj, thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov av tiv thaiv clamp meter txiav txim siab siv lub grounding resistance clamp meter ntawm tus nqi teev, ntxiv rau kev ntsuas sine. yoj tam sim no, qhov ntsuas ntawm lwm cov waveform tam sim no yuav ua yuam kev. Feem ntau, lub waveform yuam kev ntawm khib harmonics yog loj dua li ntawm txawm spectral nthwv dej, tshwj xeeb tshaj yog 3rd harmonic yoj. Qhov kev ua yuam kev nthwv dej yuav loj dua, thiab ib nrab-yoj rectified tam sim no yog ntsuas nrog lub grounding resistance clamp meter, thiab qhov yuam kev kuj loj dua; 9. Tom qab siv, cov iav yuav tsum tau muab tso rau hauv lub iav tam sim no, thiab thaum muaj lub ntsej muag saib, muab tso rau hauv lub hau saib, thiab muab tso rau hauv qhov chaw qhuav thiab qhuav. Ib qho chaw tsis muaj plua plav, corrosive gas thiab vibration; 10. High-voltage tam sim no ntsuas tsis tau, qhov voltage ntawm lub Circuit Court nyob rau hauv kev ntsuam xyuas tsis tuaj yeem tshaj qhov ntsuas voltage ntawm grounding resistance clamp meter, thiab grounding resistance clamp meter tsis tuaj yeem ntsuas cov khoom siv hluav taws xob high-voltage.
Lub multimeter muaj qhov zoo ntawm ntau lub hom phiaj, ntau yam thiab siv tau yooj yim. Nws yog ib qho cuab yeej siv feem ntau hauv kev ntsuas hluav taws xob. Nws tuaj yeem siv los ntsuas qhov tsis kam, AC thiab DC voltage thiab DC tam sim no hauv kev kho hluav taws xob. Qee cov multimeters kuj tuaj yeem ntsuas cov transistors. Main parameter thiab capacitance ntawm capacitor, thiab lwm yam.
