1.PT100 wela welaHoʻohana maʻamau i ka hui pū ʻana me nā mea hōʻikeʻike, nā mea hoʻopaʻa leo, nā helu uila, a me nā mea ʻē aʻe. E ana pololei i ka mahana o ka wai, ka mahu a me ke kinoea a me ka ʻili paʻa i ka laulā o -200 ° C ~ 500 ° C i nā kaʻina hana like ʻole.No ka hoʻoholo inā maikaʻi a maikaʻi ʻole paha, e hoʻohana wale i ka multimeter kikohoʻe e ana.
2. ʻO ke ʻano o ka ʻike wela PT100 ʻo ia ka hoʻopili ʻana o nā pahu puka ʻelua (i kekahi manawa multi-terminal) me kahi multimeter (ʻoiai aia kekahi waiwai kūʻē).Inā ʻino ke kaapuni hāmama, ʻaʻole kānalua ka hana mua i ka hoʻokolokolo maoli.Hoʻopaʻa ʻia ka waiwai kūʻē o ka thermal resistance.No ka laʻana, ʻo ka mahana maʻamau o PT100 ma kahi o 110 ohms, a ʻo ka mahana maʻamau o CU50 ma kahi o 55 ohms.ʻO ka mea hoʻopuka o ka thermocouple ka waiwai volta.Ma kahi mahana, e hoʻopuka ʻo ia i kahi hōʻailona uila o ka maʻamau he liʻiliʻi a hiki i ka ʻumi millivolts, hiki ke ana ʻia me ka faila uila o kahi multimeter.
3. He kakaikahi wale ka mV o ka volta puka o ka thermocouple, ma muli o ka pololei o ka multimeter.Hiki ke hoʻohana ʻia ka multimeter kikohoʻe no ke ana ʻino a me ka hoʻoholo ʻana.ʻO ka puka o ka thermocouple aia ma ke kauoha o millivolts.ʻAʻole hiki ke ʻike i kāna huahana me kahi multimeter, akā hiki ke ana ʻia no kona hoʻomau.I ka hapanui o nā hihia, ʻoiai ka lōʻihi o ka ʻāpana galvanic (kahi i wili ʻia nā uea ʻelua), ʻaʻohe oxidation, ʻaʻohe pōʻino, a ʻaʻohe pilikia.No laila i ka manawa like, hiki ke lawe ʻia i waho o ka puʻu no ka nānā ʻana.No ka nānā pono ʻana, pono e hoʻohana i kahi thermocouple maʻamau e hoʻohālikelike a ana i ka waiwai millivolt i hoʻopuka ʻia.
4. ʻO ka mea i luna ke ʻano ʻike o kaPT100 ike welahe huahana maʻamau.Manaʻo wau e kōkua i nā mea a pau.Inā he mau nīnau kāu, hiki iā ʻoe ke kelepona i kā mākou limahana loea.
Ka manawa hoʻouna: Dec-06-2021