Isignali kagesi ye-analog evamile esetshenziswa kakhulu embonini ukudlulisa ubuningi be-analog nge-4~20mA DC yamanje.Isizathu sokusebenzisa isignali yamanje ukuthi akulula ukuphazanyiswa, futhi ukumelana kwangaphakathi komthombo wamanje akupheli.Uchungechunge lokumelana nocingo kuluphu akuthinti ukunemba, futhi lungadluliselwa ngamakhulu amamitha kubhangqa elisontekile elivamile.Umkhawulo ophezulu ongu-20mA kungenxa yezidingo zokuvikela ukuqhuma: amandla enhlansi abangelwa ikhefu lamanje lama-20mA awanele ukuthungela igesi.Isizathu sokuthi kungani umkhawulo ophansi ungasethiwe njengo-0mA ukuthola umugqa ophukile: ngeke ube ngaphansi kuka-4mA ekusebenzeni okuvamile.Uma ulayini wokudlulisela uphukile ngenxa yephutha futhi iluphu yamanje yehla iye ku-0, i-2mA ivamise ukusethwa njengevelu ye-alamu yomugqa ophukile.
Isikhathi sokuthumela: Aug-29-2022