Croplands WEED-IT Quadro User Manual page 63

9. Specifications
The WEED-IT Quadro system detects living plant material using fluorescence. The system
treats 250 millimeter wide lanes. A measurement is made every millimeter in the driving
direction. When chlorophyll is detected the sensor will open the corresponding magnetic
valve that trails the sensor. As this valve passes over the plant it is opened and it will spray a
chemical agent onto the plant. Depending on environmental conditions and the condition
and type of the detected plant, the minimum leaf area detected is approximately 2 cm
Supply voltage
Power consumption
Current protection
System voltage
Detection channels
Detection distance
Channel width
LED wavelength
Light intensity
Sensitivity
Sample frequency
Main supply pressure
Spray line pressure
Maximum flow
Speed
Temperature
Ingress protection
Electronic specifications
12 VDC
10 to 20 W per sensor
80 A fuse
48 VDC
Detection specifications
4
1100 mm / 43"
250 mm / 10"
475 nm
160 lm
2
2 cm minimum
28000 Hz
Fluid specifications
7 bar / 100 psi maximum
2-6 bar / 30-87 psi
06 size nozzle (= 0.6 gal/min @ 40 psi)
Operating conditions
0 to 25 km/h
-30 to 60 °C / -22 to 140 °F
IP67
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