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.
Products Specification
Input type：Pt20 / Pt300(Air velocity)，Pt1000(Temp.)
Measuring range：0 … 120 Nm/s，N：Working condition(Definition：20°C at 1013 hPa)；Units can be converted Nm/s(Flow rate) or Nm3/h(Flow)(Option)
Installation angle effect：＜3% of the measured value(When the installation angle＜10°)
Output signal：4 … 20 mA / 0 … 10 V / RS-485 / Impulse
Preset output：Out1：Air velocity；Out2：Impulse
Signal connection：3-wire
Linear accuracy：±1.5%
Warm-up time：＜60 sec
Reaction time：t90＜5 sec
Load resistance：Current output：≦500 Ω；Voltage output：≧10 KΩ
Probe pressure：10 bar
Power supply：DC 24 V±10%
Electrical connections：M12 metal connector / terminal IP67
Fixed seat：1/2″ PT outside thread metal connector
Installation：Duct type / remote type
IP rating：IP67 (Probe)；IP65 (Housing)
Certification：CE
Material：Housing：Aluminum alloy；Probe：SUS304 or SUS316
Products Applications
Industrial process gas supply / Flow monitoring for consumption and drying / Compressed air consumption measurement / Building / Plant / Clean room / Hospital / Semiconductor / Electronics industry / Paper / Printing / Textile / Steel industry / Food / Chemical / Pharmaceutical / Biotechnology industry
