1. He aha te putanga 4-20 mA?
Ko te 4-20 mA he tohu iahiko anarau paerewa e whakamahia whānuitia ana i roto i ngā taputapu ahumahi, pērā i ngā mita taumata, ngā mita rere, ngā tuku pehanga, me ētahi atu.
Ko te 4 mA e tohu ana i te uara awhe 0% iti iho
Ko te 20 mA te tohu mō te uara o runga 100%
2. Ngā Painga o te 4-20 mA
Kaha te kaha ārai-pokanoa, e tika ana mō te tuku tawhiti
Kāore i te tino pāngia e te ātete taura me te hekenga ngaohiko
He māmā te kite i te whati o te waea (ko te tohu < 4 mA te tikanga he hapa)
Hototahi ki te nuinga o ngā PLC, DCS, ngā kaiwhakamahara me ngā pūnaha whakahaere
Pūmau, pono hoki i roto i ngā taiao ahumahi kino
3. Ngā tono noa
Tukuna ngā uara ine (taumata, rere, pēhanga, pāmahana)
Hono atu ki ngā pūnaha whakahaere mō te aroturuki me te whakahaere
Whakamahia i roto i ngā taputapu ahumahi maha
He pai mō te hinu, te maimoatanga wai, te matū, te hiko me ētahi atu ahumahi
Wā tuku: Maehe-17-2026