Intshayelelo yemveliso ye-4-20mA

Iimitha ezininzi zemizi-mveliso zikhetha ukusebenzisa umbane ukuhambisa imiqondiso, kuba umbane awuvani nengxolo. Iluphu yangoku ye-4 ~ 20mA yi-4mA ukumela isignali engu-zero, i-20mA ukumela isikali esipheleleyo sesignali, kwaye isignali engaphantsi kwe-4mA nangaphezulu kwe-20mA isetyenziselwa i-alamu yeziphene ezahlukeneyo. Isiphumo se-4-20MA seemveliso zezixhobo zeLanrui siyasebenza isignali ye-4-20MA ngaphandle kwemitha yamanzi, imitha yokuhamba kancinci kunye nemitha yobushushu. Isiphumo semitha yamanzi i-4-20mA asisebenzi. Ke ngoko, xa kusetyenziswa isiphumo se-4-20mA semitha yamanzi eneengcingo ezimbini, isixhobo esisebenzisa imiqondiso yangoku kufuneka sisebenze.  Uthotho lomahluko wexesha: Iimenyu ze-M53-M58 zisetyenziselwa ukulinganisa, ukuseta kunye nokuqinisekisa isiphumo se-4-20MA.

1. Imitha yothotho lweDoppler: OUTPUT1 khetha i-4-20 mA. Iflow 4mA seta iflow ekhawulezileyo ye-4 mA. Iflow 20mA seta iflow ekhawulezileyo ye-20mA. Imeter yamanzi/Uthotho lokuhamba okuncinci: Idijithi yokuqala yemenyu ye-CFU isetelwe kwi-2 ukuvula i-output yangoku.

Imenyu ye-FF iseti ye-20mA ukuze ihambelane nokuhamba ngokukhawuleza; i-4mA ibonisa ukuba ithrafikhi ekhawulezileyo yi-0 kwaye akukho menyu yokuseta.

2. Imitha yochungechunge lwesantya sendawo: kwimenyu engaphantsi yePhumo, khetha i-4-20 ma uze usete ukuhamba okukhawulezileyo kwe-4 mA kunye ne-20mA.

3. Uhlobo lweFlume kunye nee-weirs vula uthotho lwetshaneli: phantsi kweparameter yokuhamba Useto, khetha i-4-20 mA ukuseta ukuhamba kwangoko kwe-20mA kunye ne-0 kwi-4 mA. Akukho menyu yokuseta.