1.PT100 masensa kutenthaNthawi zambiri amagwiritsidwa ntchito limodzi ndi zida zowonetsera, zida zojambulira, mawerengedwe apakompyuta, ndi zina zambiri. Yesani mwachindunji kutentha kwamadzi, nthunzi ndi mpweya wapakati komanso olimba pamwamba pa -200 ° C ~ 500 ° C munjira zosiyanasiyana zopanga.Kuti muwone ngati ili yabwino kapena yoyipa, ingogwiritsani ntchito digito multimeter kuti muyese.
2. Chikhalidwe cha PT100 kutentha kwa kutentha ndi chakuti mawotchi awiri otulutsa (nthawi zina multiterminal) amagwirizanitsidwa ndi multimeter (ngakhale pali mtengo wotsutsa).Ngati dera lotseguka lidzakhala loipa, mosakayikira ndilo gawo loyamba pa chiweruzo chenichenicho.Mtengo wotsutsa wa kukana kwa kutentha umakhazikika.Mwachitsanzo, kutentha kwabwino kwa PT100 kuli pafupi ndi 110 ohms, ndipo kutentha kwabwino kwa CU50 kuli pafupi ndi 55 ohms.Kutulutsa kwa thermocouple ndi mtengo wamagetsi.Pa kutentha kwina, imatulutsa chizindikiro chamagetsi cha ma millivolts ochepa mpaka makumi, omwe amatha kuyezedwa ndi fayilo yamagetsi ya multimeter.
3. Mphamvu yamagetsi ya thermocouple ndi yochepa chabe ya mV, malingana ndi kulondola kwa multimeter.Multimeter ya digito ingagwiritsidwe ntchito poyesa movutikira komanso kuweruza.Kutulutsa kwa thermocouple kuli mu dongosolo la millivolts.Sizingatheke kuzindikira zotsatira zake ndi multimeter, koma zikhoza kuyesedwa chifukwa cha kupitiriza kwake.Nthawi zambiri, malinga ngati gawo la galvanic (kumene mawaya awiri amawotcherera) amalumikizidwa, palibe okosijeni, palibe kuwonongeka, ndipo kawirikawiri palibe vuto.Kotero nthawi yomweyo, ikhoza kuchotsedwa mu sheath kuti iwonetsedwe.Kuti muwone kwenikweni, ndikofunikira kugwiritsa ntchito thermocouple yokhazikika kuti mufananize ndikuyesa millivolt mtengo womwe umatulutsa.
4. Pamwambapa ndi kudziwika njira ngatiPT100 sensor kutenthandi mankhwala abwinobwino.Ndikuyembekeza kuthandiza aliyense.Ngati muli ndi mafunso, mutha kulumikizana ndi akatswiri athu.
Nthawi yotumiza: Dec-06-2021