Yog tias koj ua haujlwm nrog transformers, koj paub tias nws tseem ceeb npaum li cas los xyuas lawv cov mob. Transformer ohmmeters yog cov cuab yeej zoo rau lub hom phiaj no, tab sis qee zaum lawv tuaj yeem ntsib cov teeb meem uas xav tau kev daws teeb meem. Txhawm rau pab koj nrog qhov ntawd, ntawm no yog qee qhov teeb meem thiab lawv cov kev daws teeb meem thaum siv lub tshuab hluav taws xob ohmmeter.
Qhov teeb meem 1: Dirty terminals
Thaum koj lub tshuab hluav taws xob ohmmeter qhia cov ntawv nyeem tsis raug lossis muab cov lus teb tsis tau nyeem, nws yuav yog vim cov khoom siv qias neeg. Cov av, khib nyiab, thiab oxidation tuaj yeem tsim los ntawm cov terminals, uas txo cov hluav taws xob conductivity. Txhawm rau txhim kho qhov teeb meem no, koj tuaj yeem ntxuav koj cov terminals uas siv cov txhuam txhuam txhuam los yog cov paj rwb swab thiab isopropyl cawv.
Qhov teeb meem 2: Loose kev twb kev txuas
Lwm qhov teeb meem uas tuaj yeem ua teeb meem yog kev sib txuas xoob. Ib qho kev sib txuas xoob ntawm lub transformer terminals thiab lub ohmmeter tuaj yeem ua rau kev nyeem ntawv tsis sib xws lossis tsis nyeem ntawv txhua. Txhawm rau zam qhov no, xyuas kom meej tias kev sib txuas ntawm ohmmeter thiab terminals yog nruj thiab ruaj khov.
Qhov teeb meem 3: Lub roj teeb tsawg
Qee zaum, ohmmeter lub roj teeb khiav qis thiab xav tau kev hloov pauv. Thaum qhov no tshwm sim, koj lub cuab yeej yuav tso saib cov ntawv nyeem tsis raug, lossis cov ntawv nyeem yuav tsis sib haum. Txhawm rau tiv thaiv qhov teeb meem no, xyuas kom tseeb tias koj ib txwm kuaj xyuas lub roj teeb ntawm koj lub ohmmeter ua ntej ntsuas.
Qhov teeb meem 4: calibration tsis raug
Yog hais tias koj lub transformer ohmmeter tsis calibrated kom zoo, nws yuav ua rau cov neeg tsis zoo, uas yuav ua rau cov nyeem tsis raug. Txhawm rau zam qhov teeb meem no, koj yuav tsum xyuas kom meej tias koj ua tiav koj lub cuab yeej los ntawm kev ua raws li cov chaw tsim khoom cov lus qhia.
Qhov teeb meem 5: puas cables los yog probes
Lwm qhov teeb meem uas koj yuav ntsib thaum siv lub tshuab hluav taws xob ohmmeter yog muaj cov kab hluav taws xob puas lossis kev sojntsuam. Thaum koj cov cables lossis kev sojntsuam puas lawm, lawv tuaj yeem ua rau kev nyeem ntawv tsis raug lossis tsis muaj kev nyeem ntawv txhua. Txhawm rau zam qhov no, ua qhov kev kuaj xyuas tsis tu ncua ntawm koj cov cables thiab kev sojntsuam, thiab hloov lawv thaum tsim nyog.
Transformer ohmmeters yog ib qho yuav tsum muaj cuab yeej rau txhua tus neeg ua haujlwm nrog transformers. Txawm li cas los xij, zoo li txhua yam khoom siv, lawv muaj feem xyuam rau qee yam teeb meem. Yog tias koj tuaj yeem daws cov teeb meem no, koj yuav ua kom koj lub ohmmeter ua haujlwm zoo thiab xyuas kom meej tias koj lub tshuab hloov pauv tau ua haujlwm zoo.