Lub multimeter rau thermocouples tsuas yog ntsuas rau thiab tawm ntawm chav tsev kub
Tso lus
Lub multimeter rau thermocouples tsuas yog ntsuas rau thiab tawm ntawm chav tsev kub
Vim tias ib qho ntawm qhov ntsuas kub ntawm cov thermocouple yog qhov ntsuas kub ntawm ob qhov kawg ntawm lub thermocouple sib txawv, xaiv qhov tsis kam ntawm multimeter.
Yuav ua li cas txheeb xyuas qhov zoo ntawm thermocouple nrog multimeter:
1, ua ntej soj ntsuam nrog lub qhov muag liab qab seb lub raj tiv thaiv puas yog corroded thiab nkag mus, seb nws puas, thiab lwm yam.
2, yog siv ib tug multimeter los ntsuas lub on-off. Qhov kev tiv thaiv ntawm cov thermocouple sib sau ua ke feem ntau tsis ntau tshaj 2 ohms, thiab qhov tsis kam ntawm lub network cable feem ntau tsis ntau tshaj 50 ohms. Feem ntau ntau dua 1K tuaj yeem txiav txim siab tawg.
3. Siv txoj kev ntsuas multimeter ohm los ntsuas cov thermocouple, kho tus nqi tiv thaiv, txuas ob kawg, thiab me ntsis hlawv nws nrog lub teeb. Yog hais tias tus pointer ntawm lub multimeter ua loj los yog me me, qhov no qhia tau hais tias nws yog zoo, thiab tus pointer tsis txav los qhia tias nws twb puas lawm. . Nws tuaj yeem ntsuas qhov voltage ntawm ob qhov kawg nrog millivolt meter nrog multimeter. Yog tias tsis muaj qhov hluav taws xob, nws yuav tawg.
Tib neeg malfunction tshwm sim los ntawm kev ua haujlwm tsis tu ncua
Piv txwv li, tus naj npawb ntawm cov thermocouple indexing tsis phim lub 'meter', lub thermocouple them nyiaj xaim tsis haum rau hom thermocouple, cov thermocouple them nyiaj xaim txuas nrog lub thermocouple hauv qhov rov qab polarity, thermocouple insertion ntev yog tsis tsim nyog, thiab lwm yam. qhia tau hais tias qhov tso zis thermocouple loj dua tus nqi tiag tiag. Los yog nws yog me me, uas ua rau qhov siab lossis qis tso saib tus nqi ntawm lub 'meter'. Txoj kev tuav ntawm hom kev ua tsis tiav no yog qhov yooj yim, tsuav yog tias koj ntxiv dag zog rau kev nkag siab ntawm lub luag haujlwm ntawm lub ntsuas hluav taws xob, nyeem thiab nkag siab cov ntsiab lus ntawm phau ntawv kom ntxaws, thiab ua raws li cov txheej txheem kev teeb tsa thermocouple thiab cov ntsuas ntsuas kom raug.
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