Ko te pūoko pāmahana PT100 he huānga ine pāmahana, ka hurihia ngā tawhā pāmahana o te mea ine hei tawhā hiko taurangi. Ina tukuna te putanga ki te taputapu whakaatu matihiko motuhake, ka whakaatuhia te pāmahana o te mea i inehia i te wā-tūturu; ka uru atu ki te pūnaha whakahaere me te tiaki pāmahana e rite ana, ka whakahohehia e te pāmahana rerekē te pūnaha tiaki, ka whakaoho i te mahi pakaru hiko, ka tapahia te hiko hiko o te motuka, kia kore ai e puta he hapa ā-rohe nā te aituā kino o te motuka. Ko te PT100 te huarahi ki te huri i ngā tawhā pāmahana ki ngā tawhā hiko? Ki te kore koe e mārama, tera pea he mea ngaro, i muri i te whakamārama e whai ake nei, kāore pea koe e tino pōhēhē: Ko te PT100 RTD he mea hanga nui mai i te konganuku konukawata. He tino teitei te pumau wera o te konganuku konukawata, ko tōna uara ātete me te pāmahana he tino ōritetanga kotahi-ki-te-kotahi i waenganui.
E whakamahia whānuitia ana ngā pūoko pāmahana PT100 i roto i ngā taputapu ahumahi hei ine me te whakahaere i ngā tawhā pāmahana tukanga. Ko ngā tuku me ngā pūoko he wāhanga e rua: te pūoko me te kaitahuri tohu. Ko ngā pūoko he thermocouples, he RTD rānei; ka taea te whakamahi i te kaitahuri tohu mā te ine i ngā tawhā, te tukatuka tohu me te waeine tahuri, kia rite ki te hiahia o te kiritaki, ka whakanui ake ētahi tuku i te waeine whakaatu pāmahana wā-tūturu, he kaha hoki te mahi fieldbus, ka tukuna ake ki te pokapū whakahaere.
Mōta i runga i te tono o te PT100 i runga i te takai motuka me te aroturuki pāmahana peera me te tiaki i te tikanga motuhake: kia whakarite kia aroturukihia te huringa ora katoa o te motuka, ko te tikanga i roto i ia wahanga o te takai ka tanumia ki roto i nga huinga e rua o nga waahanga ine pāmahana, arā, he huinga whakarite mo te huinga o; ka taea te whakakapi i tetahi waahanga peera o nga waahanga ine pāmahana i te waahi ina puta he kino, kia kotahi noa te huinga peera. No reira, ko te ine pāmahana o nga motuka nui e toru-waahanga ka whirihorahia kia rite ki te ine pāmahana 8-ira: e toru nga tohu o te takai, e rua nga tohu o te peera (e rua nga tohu porowhita, ia tohu kotahi) kei runga, katahi ka tatari kia toru nga tohu o te ine pāmahana peera.
Wā tuku: Hakihea-27-2023