Air velocity transmitter FTM84/85

● IP65 protection degree, rugged aluminum case, fit in variety harsh environment
● Capable of temperature compensation
● Llinear adjustment air velocity by computer, analogue output or option RS-485
● High-speed, high-precision measurement, fast response
● Thermistor measurement sensor
● LCD display air velocity and temperature value
● Switch multifunction physical quantities：[m/s]、[ft/s]、[km/h]、[mph]、[kont]
● DIP SWITCH function and RS-485 function
● Calibration physical quantities, measuring range, analogue output, station, and zero-point OFF SET function
● Keyboard or RS-485adjustment zewo-point OFF SET function
● Free calibration software : data logger / record 65535 datas / charts 

Sensor Type : Thermal mass flow sensor
Air Velocity Measuring Range : 1 m/s ; 2 m/s ; 5 m/s ; 10 m/s；20 m/s；40 m/s ; 60 m/s ; 90m/s ; 120m/
Air Velocity min. Measuring Range : 0.15  m/s
Temp. Sensor / Measuring Range : PT 1000, 0 ... 80 ℃
Accuracy ( + 25 °C ) : 
Air velocity : ± 1.5 % F.S.  ( nonlinear error, hysteresis error, repeatability error  )
Temperature ( > 2 m / s ) : ± 0.3 ℃
Thermal Sensitivity Temp. Error : 0.05 % / ℃
Output : 0 ... 20 mA / 4 ... 20 mA / 0 ... 1 VDC / 0 ... 5 VDC / 0 ... 10 VDC
Signal Connection : 3-wire
Load Resistance : ≦ 500Ω(current output) / ≧ 10KΩ(voltage output)
Overvoltage Protection : DC：< 45V；AC：< 40V
Power Supply : 8 ... 35VDC / 12 ... 30VA

Protection Degree:IP 65

Monitoring for HVAC process

Environmental control and clean room

Laminar flow control