Flow / Air Velocity / Flow Transmitter / Air Volume

FTM94/95

Industrial Grade High Accuracy Thermal Mass Flow Transmitter

IP67 Rugged stainless steel case, fit in variety harsh environment
Easy to install, imported sensing element, high accuracy, long-term stability
Switch multifunction physical quantities:[m/s]、[ft/s]、[Nm3/h]、[Nm/s]、[L/min](Air velocity and volume)
LCD Display of air velocity and temperature

FTM94/95 Hot wire thermal air velocity transmitter working at a constant Temp. using King’s law heat balance equation for:

e2=a’+b’vn e Sensor voltage output(V)
a’: Zero output of constant temperature hot wire anemometer, can be eliminated by circuit
b’: Sensitivity of the sensor, related to the operating temperature
v: Fluid flow rate
n: 0.45 … 0.5(Standard)

 

Can be calculated from the formula characteristic curve of constant Temp. hot wire anemometer, special double PT probe and full metal housing design, high accuracy, suitable for a variety of pipe diameters, widely used in industrial fields.