Industrial Grade High Accuracy Thermal Air Velocity Transmitter

● IP rating：IP67, rugged aluminum case, fit in variety harsh environment
● Capable of temperature compensation
● Linear calibration air velocity by computer, analog output or RS-485(Optional)
● High-speed, high-accuracy measurement, quickly respond
● Thermal mass flow sensor
● LCD, display air velocity and temperature
● Switch multifunction physical quantities：[m/s]、[ft/s]、[km/h]、[mph]、[kont]
● DIP SWITCH and RS-485 function
● Follow customer needs to plan measuring range, analog output, stations, and zero-point OFF SET or RS-485 adjustment zero-point OFF SET
● Free programmable software : Data logger / Maximum record 65535 data / Charts

Input
Sensor type : Thermal mass flow sensor
Measuring range : 1 m/s；2 m/s；5 m/s；10 m/s；20 m/s；40 m/s；60 m/s；90 m/s
Min. Measuring range : 0.15 m/s
Temp. sensor & measuring range : Pt1000, 0 … 80°C

Output
Output : 0 … 20 mA / 4 … 20 mA / 0 … 1 V / 0 … 5 V / 0 … 10 V
Default output : Out1 : Air velocity；Out2 : Temp.(Default value：0 … 80°C)
Signal connection : 3-wire
Load resistance : Current output : ≦500 Ω, Voltage output : ≧10 KΩ
Response time : t90≦3 sec
Installation angle effect : ＜3% of the measured value (When the installation angle＜10°)
Display type : LCD module with green black light
Display range : Upon request, one deimal place, double line character (Up：Air velocity；Down：Temp.)
Height of character : 5.55mm

Accuracy(+25°C)
Air velocity : ±1.5%F.S.(Nonlinear error, hysteresis error, repeatability error)
Temperature(＞2 m/s) : ±0.3°C
Thermal sensitivity Temp. error : 0.05% / °C

Environment
Measuring medium : Air
Operating Temp . : Housing：-20 … +80℃, Housing with display：-20 … +60℃, Probe：-20 … +100℃
Operating humidity : 95%RH(Non-condensing
Storage Temp. : -20 … +60℃
Proof pressure : 10 bar

Electrical
Power supply : DC 8 … 35 V & AC 12 … 30 V
Current consumption : DC 8 V：300 mA, 24 V：100 mA, AC 12 V：350 mA, 24 V：180 mA

Overvoltage protection : DC：＜45 V；AC：＜40 V
Electrical connection : M12 metal connector / Terminal

Installation
Installation : Duct / Remote
Fix : 1/2 PT outside thread

Protection
IP rating : IP67(Probe)；IP65(Body)
Clectric protection : ■ Polarity protection ■ Over-voltage ■ Short circuit

Certification
Certification : CE

Material
Housing : Aluminum alloy
Probe : SUS
Filter : POM
Cable : PTFE(Remote FTM85)
Option : Metal mounting flange
Weight : FTM84：670 g / FTM85：782 g