... Explosion-proof Current output: 4~20mA,standing for media densityVoltage output: ±0.5VDC,standing for media density.Frequency output: 1 ~10000Hz,standing ... for flow,Electrical level,0~15VDC,load of 2K,frequency output being 0Hz in ... its inception in 1997, Its stable performance, cost performance for the domestic mass flowmeter has won the reputation of, And ...