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Air flow switch

 AV air velocity transmitters are ideal for accu rate ventilation control applications. They are operating on an innovative hot film anemometer principle. The E+E thin film sensor guarantees very good accuracy at low air velocity, which is not possible for conventional anemometers with commercial temperature sensors or NTC bead thermistors. Moreover, the E+E sensor is much more in sensitive to dust and dirt than all other ane mometer principles. This means high reliability and low maintenance costs. AV series are available with current or voltage output, the measuring range and the response time can be selected with jumpers by the user. Low angular dependence enables easy, cost-effective installation. An integrated LC display and a version with remote sensing probe are available.



Low angular dependence

Easy installation
Adjustable to application requirements
Range:0-10m/s 0-15m/s   0-20m/s
Accuracy air velocity(at20℃,45%rh,1013hpa):   ±0.2m/s+3% of mv
Response time : typ.4 sec. to typ.0.2 sec.
working temperature electronics : -10°C to +50°C
Storage temperature : -30°C to +60°C
Working temperature probe : -25°C to +50°C
Output : 0-10Vdc or 4-20mA
Load resistance : R<450Ω
Supply :  24Vdc/ac±20%
Max current when used in Voltage output :    -1 mA < IL < 1mA
Media Humidity: 0-80%RH
Consumption for DC supply : max 90mA
                            AC supply :  max 150mA
 Housing/protecting class :  PC/IP65,Nema4,with display IP40
Allow 15s for the unit to stabilise when it is first switched on
Order Code
Order code Description
AV1 Air Flow Switch


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