China low cost Vortex air flow meter

Nominal diameter(mm)

25,40,50,65,80,100,125,150,200,250,300,(300~1000 Insert type)

Nominal pressure (MPa)

DN25-DN200 4.0(>4.0 Supply agreement),DN250-DN300 1.6(>1.6 Supply agreement)

Medium temperature(℃)

Piezoelectric type:-40~260,-40~320;Capacitance type

: -40~300, -40~400,-40~450(Supply agreement)

Body material

1Cr18Ni9Ti,(Other materials supply agreement)

Allowable vibration acceleration

Piezoelectric type:0.2g     Capacitance type:1.0~2.0g

Accuracy

±1%R,±1.5%R,±1FS;Insert type:±2.5%R,±2.5%FS

Range of

1:6~1:30

Power supply voltage

Sensor:+12V DC,+24V DC;Transmitter:+12V DC ,+24V DC;Battery type:3.6V Battery

Output signal

Square wave pulse ( not including the battery power supply type ): high level or low level5V,1V; current: 4~ 20mA

Pressure loss coefficient

In line with the JB / T9249standard Cd = 2.4

Explosion proof marks

Intrinsic safety type: Exd IA CT2-T5 flameproof type: Exd CT2-T5

Protection grade

The ordinary IP65  diving type IP68

Environmental conditions

Temperature - 20~ 55,5% ~ 90% of relative humidity, atmospheric pressure is 86 ~ 106kPa

Applicable medium

Gas, liquid, steam

Transmission distance

Three wire system pulse output type: < 300m, two line standard current output type (4 ~ 20mA ): load resistance less than 750ohm