... 1.0%,0.5% 3.no zero point deviation 4.rapid response,high sensitivity SpecificationsLiquid flow meter 1>Hi-accuracy ... carbonized shaft and bearing,be the same with medium of sully.3.Erode-resistant Be the same with sea ... water,ammonia,acetometer,etc4.Bi-direction Pulse,4~20mADC,total and rate display in the field.5. ... .6.Explode-proof Ex d11 BT4/Ex ib 17.spectrum 2,4,6,10,15,25,40,50,80,100,150 ...