Technical parameters, said the caliber (mm) 50 65 80 100 125 150 200 250 300 Maximum flow qs (m3 / h) 30 50 80 120 200 300 500 800 1200 common flow qp (m3 / h) 15 25 40 60 100 150 250 400 600 cut-off flow the QC (m3 / h) 1.5 2.5 4 6 10 15 25 40 60 minimum flow of qi (m3 / h) 0.6 1 1.6 2.4 4 6 10 16 24 weight kg 9 11 12 15 17 22 32 50 80 Dimensions L (mm) 200 200 220 250 350 350 350 400 450 D (mm) 165 185 200 220 250 285 340 405 460 H (mm) 190 190 230 250 500 530 580 650 700 K (mm) 125 145 160 180 210 240 205 355 410 connecting bolts N -MA 4-M16 4-M16 8-M16 8-M16 8-M16 8-M20 12-M20 12-M24 12-M24 flow readings: M 999999 heat maximum reading 999999.99 Accuracy Class 2 pressure loss <0.025mpa nominal pressure 1.6MPa temperature sensor PT1000 platinum resistance-line temperature calculation range 1-99 ° C temperature measuring range 1-105 ° C Temperature range 3-75 ° C temperature resolution of 0.01 ° C environment Level A protection class ip67 power form 3.6 lithium battery life of six years communication infrared RS485 M-BUS installation location for / backwater installation level or vertical installation (cold) heat carrier water measuring accessories measuring temperature