Ball valve insertion inserted type electromagnetic flow meter flanged connection

Low-frequency square-wave exciting, exciting frequency: 1/16 power frequency, 1/20 power frequency, 1/25 power frequency; High-frequency square-wave exciting, exciting frequency: 1/2 power frequency (for grouting liquid measure); Exciting current can be selected for 125mA, 187.5mA, 250mA, 500 mA; No need to add empty pipeline measurement, and can measure continuously, alarm by fixed value; Current speed range: 0.1 --- 15m/s, current speed resolution: 0.5mm/s; AC high