Kaiwhakatika Rōrahi

2.1Te mana mahi：

1. Te mana o waho: + 12 - 24VDC ± 15%, ripple <5%, e tika ana mo te putanga 4 - 20mA, te whakaputanga pupuhi, te whakaputa whakaoho, te whakaputa korero RS-485 me etahi atu.
2. Te hiko o roto: He huinga o te pākahiko lithium 3.6V, ka iti ake te ngaohiko i te 3.0V, ka puta he tohu whakaheke.

2.2Te whakapau hiko o te mita katoa：

A. Te mana o waho:<2W;

B. Te mana o roto: te kaha toharite: ≤1mW, ka taea te whakamahi i te huinga o te pākahiko lithium mo te neke atu i te 3 tau, i te wa o te mita i roto i te ahua o te moe, te kai mana: ≤0.3mW.

2.3Te aratau whakaputa puhoi：

A. Te ahua o te mahi tohu pupuhi (FOUT): ka kitea tika e te pukoro rere i roto i te wehenga optocoupler ka whakanui me te whakaputa, taumata teitei: ≥20V, taumata iti: ≤1V

B. He tohu pupuhi rite (H/L): kua whakanuia te whakaputanga na roto i te hangarau wehe o te optocoupler, te awhe taumata teitei: ≥20V，te awhe taumata iti: ≤1V.Ko te putere waeine e tohu ana i te awhe rōrahi paerewa ka taea te whakarite: 0.01 m³/0.1 m3m³/1m3m³/10m³；Ngā tohu whakaoho tepe o runga me raro (H/L): te wehe i te whakaahua hiko, te whakaoho teitei me te iti, te ngaohiko mahi :+ 12V - + 24V, kawenga mōrahi 50mA nāianei.

2.4 RS－485whakawhitiwhiti korero (whwehenga hotoelectric)：

Ma te atanga RS-485, ka taea te hono atu ki te rorohiko o runga, ki te taputapu ranei.Ka taea e ia te tuku i te pāmahana, te pehanga, te rere tere, te rahinga paerewa katoa me etahi atu taputapu e pa ana ki te reo ine, te waehere hapa, te mana whakahaere, te kaha o te pākahiko me etahi atu raraunga tuuturu.

2.5 4-20mAtohu o naianei (whwehenga hotoelectric)：

He rite ki te rere o te rōrahi paerewa, 4mA e rite ana ki te 0m³ / h, 20 mA e rite ana ki te nui o te rere o te rōrahi paerewa (ka taea te whakarite i te uara ki te tahua taumata tuatahi), te punaha: te punaha rua-waea, te punaha waea-toru ranei, ka taea e te mita rere te tautuhi me te whakaputa tika i runga i te waahanga o naianei kua whakauruhia.

2.6Putanga tohu whakahaere：

A. IC kāri tohu rōrahi paerewa (IC_out): I roto i te ahua o te whakaputanga aho tohu pulse, ko te whanui o te pupuhi he 50ms, 100ms, 500ms, ko te kaha o te pupuhi e pa ana ki te 3V, ka taea te whakarite i te taumata noa, te tawhiti tuku:≤50m , e tohu ana ia pulse: 0.01m³, 0.1m³, 1m³, 10m³, He pai mo te whakamahi me nga punaha kaari IC;

B. Putanga ngaohiko pūhiko (BC kāpeka, pūhiko tuatahi iti ngaohiko whakaoho): tuwhera kaikohi putanga, amplitude: ≥2.8V, kawenga ātete : ≥100kΩ;

C. Pūhiko undervoltage whakaoho whakaoho (BL terminal, tuarua pākahiko iti ngaohiko whakaoho): tuwhera kaikohi putanga, amplitude : ≥2.8V, kawenga ātete: ≥100kΩ