Variable area flow meter Feature: 1.Low pressure loss 2.Hi-accutacy popularly:±1.0%,Special calibrated:±0.5%. 3.Low velocity min.velocity of flow:less than1.5m/s 4.Compensation with temperature and pressure compensation(option) 5.Lubricate with lubricated system(option) 6.LCD display 7.Multi output Pulse,4 20mADC 8.Spectum 15,25,40,50,80,100,150mm. Specifition: Model Upper flow (m3/h) Span Error (%) Pressure (mPa) Water Air LZZ-15 LZD-15 0.025 0.7 10 1.5 2.5 1.6 *greater than1.6 0.04 1.1 0.06 1.8 0.1 2.8 0.16 4 0.25 7 0.4 10 LZZ-25 LZD-25 0.6 16 1 30 1.6 45 2.5 70 LZZ-40 LZD-40 4 110 6 160 LZZ-50 LZD-50 10 250 16 400 LZZ-80 LZD-80 25 750 40 750 LZZ-100 LZD-100 60 1800 60 2500 LZZ-150 LZD-150 160 4000 NOTE: The model LZD with 4 20mA Output Mark "*" means specital order