... DN250, DN300, DN350, DN400, DN450, DN500; Applicability: gas (air, oxygen, nitrogen, coal gas, natural gas, chemical gas and so ... 5 grade, gas, steam 1.0 grade;Range of flow rate: liquid: 0.6-6 m/s, gas: 5 ... % full-scale value, load resistance 24V-500Ω, field LCD display: instantaneous delivery 5 bit display (m3/h, kg ... : +12VDC; when 4-20mA output: +24VDC;Field LCD display: 3.6V No.1 1 lithium cell power ...