Hāʻawi ʻo Jeoro i nā ʻano mea hoʻoili wela
ʻAʻole hoʻololi wale nā mea hoʻouna i nā hōʻailona i hoʻololi ʻia mai nā thermometers resistance (RTD) a me nā thermocouple (TC), hoʻololi pū lākou i nā hōʻailona kū'ē (Ω) a me ka volta (mV).I mea e loaʻa ai ka pololei ana kiʻekiʻe loa, mālama ʻia nā hiʻohiʻona linearization no kēlā me kēia ʻano sensor i ka transmitter.Ma ke kaʻina hana automation ʻelua mau loina ana no ka mahana i hōʻoia iā lākou iho he maʻamau:
RTD - Nā mea nānā wela kū'ē
Hoʻololi ka mea ʻike RTD i ke kūpaʻa uila me ka hoʻololi ʻana i ka mahana.He kūpono lākou no ke ana ʻana o nā mahana ma waena o -200 °C a ma kahi kokoke.600 °C a kū i waho ma muli o ke ana kiʻekiʻe a me ka paʻa lōʻihi.ʻO ka mea sensor i hoʻohana pinepine ʻia he Pt100.
TC - Nā Thermocouple
ʻO ka thermocouple kahi mea i hana ʻia me ʻelua mau metala like ʻole i hoʻopili ʻia kekahi i kekahi ma kekahi ʻaoʻao.He kūpono nā Thermocouples no ke ana wela ma ka laulā o 0 °C a i +1800 °C.Kū lākou ma muli o ka manawa pane wikiwiki a me ke kūpaʻa vibration kiʻekiʻe.
