Cov qauv siv hluav taws xob zoo tshaj plaws hauv kev lag luam yog siv 4-20mA DC tam sim no los xa cov analog.Yog vim li cas siv lub teeb liab tam sim no yog tias nws tsis yooj yim rau kev cuam tshuam, thiab kev tiv thaiv sab hauv ntawm qhov chaw tam sim no yog infinite, thiab kev tiv thaiv ntawm cov hlau hauv series hauv lub voj tsis cuam tshuam qhov raug, thiab nws tuaj yeem xa mus ntau pua. ntawm meters ntawm qhov zoo tib yam twisted khub hlau.Kev txwv sab saud yog 20mA vim yog qhov yuav tsum tau ua pov thawj tawg: lub txim hluav taws xob tshwm sim los ntawm kev tawm ntawm 20mA tam sim no tsis txaus rau ignite cov roj.Yog vim li cas vim li cas qhov qis qis tsis tau teem rau 0mA yog kom muaj peev xwm txheeb xyuas qhov kev sib txuas: nws yuav tsis qis dua 4mA thaum lub sijhawm ua haujlwm ib txwm muaj.Thaum cov kab sib kis tau tawg vim yog qhov ua txhaum, lub voj tam sim no poob rau 0, thiab 2mA feem ntau yog siv los ua tus nqi tswb cuam tshuam.
Post lub sij hawm: Oct-15-2021