Overview 
 WD41 series of wind speed sensors, is designed for measuring wind speed and wind pipe research and development, and completely solved the problem of the wind pipe air turbulence at low wind speeds can still guarantee high precision measurements, and strong anti-pollution, low maintenance, cost-effective, for the hot-film NTC thermal sensors and wind speed sensors ideal alternative. 
 For HVAC, ventilation, air conditioning, clean room, laboratory room, clean room for wind speed measurements 
 Features 
 * Integrated design 
 * Can accurately measure low wind speeds 

 Installation 
 * The length of the sensor probe through holes or openings, plastic flange fixed installation. Adjust the angle to the wind direction and wind direction sensors. 
 * The total air volume control, after installed in the plenum chamber 
 * Control valve, the valve to send pre-installed in the branch duct or valve after the distance of not less than 1.5m 
 * Measure the room air supply to be adjusted according to actual measurement conditions 

 Technical parameters 

 Model WD4110 WD4120 WD4130 
 Measuring range 0-15m / s 0-30m / s custom m / s 
 Accuracy 0.20% 0.20% 0.20% 
 Resolution of 0.05m / s 0.05m / s 0.05m / s 
 Power supply AC15 ... 26V DC13 ... 24V AC15 ... 26V DC13 ... 24V AC15 ... 26V DC13 ... 24V 
 Frequency 50/60HZ 50/60HZ 50/60HZ 
 Output signal 0 ... 10V 4-20mA 0 ... 10V 4-20mA 0 ... 10V 4-20mA 
 Power 10W 10W 10W 
 Allow cable length 0.5mm2BVVR cable 70m 0.5mm2BVVR cable 70m 0.5mm2BVVR cable 70m 
 1.0mm2BVVR cable 200m 1.0mm2BVVR cable cable 200m 200m 1.0mm2BVVR 
 1.5mm2BVVR cable 350m 1.5mm2BVVR cable cable 350m 350m 1.5mm2BVVR 
 Other non-shielded cable to be cut short cable lengths other non-shielded cable to be cut short cable lengths other non-shielded cable cable length to be shortened 
 Connect the screw terminal connector screw terminal connection terminal 3X1.5mm2 screw connection terminal 3X1.5mm2 3X1.5mm2 
 Working conditions, the probe temperature -5 ... +65 ℃ -40 ... 105 ℃ temperature -5 ... +70 ℃ -40 ... 105 ℃ temperature -5 ... +70 ℃ -40 ... 105 ℃ 
 Humidity 5% -95% humidity 5% -95% humidity 5% -95% 
 Standard probe length: 350mm 

 (Can be ordered in any length 1.5m) 
 Standard: 350mm 
 (Can be ordered in any length 1.5m) 
 Standard: 350mm 

 (Can be ordered in any length 1.5m) 

 Color lime \ gray ash \ gray ash \ ash 


 For more detailed installation instructions and technical documentation see the products were