Q nM3/h1.6Q maxM3/h2.5Q minM3/h0.016Working pressure rnaxkpa20Total pressure lossespa≤200Basic errorQ min≤Q<0.1 Qmax%±30.1Qmax≤Q≤Qmax%±1.5Connector’s threadM 30×2connector’central diastancemm130Aeeumulative reading maxM399999