Yara N-Sensor V3.10
Operation Manual
6
Using raster maps (prescription maps)
The N-Sensor software can handle so-called raster maps (prescription maps) to pro-
vide spatially variable application information. While for standard N-Sensor based ap-
plications these maps are not required, they can be used optionally to “overlay” N-
Sensor recommendations with map information or to control the application rate solely
from the map.
Raster maps are mandatory for the
Base application
operation mode and are optional
for all other modes. They have to be prepared by third-party software in Surfer ASCII
grid file format (*.grd) or WTK ADIS format (*.rst). The total number of grid cells should
not exceed 65000. For more detailed information on how to create raster maps contact
your local service partner.
6.1
Select the application mode
To make use of raster maps, you first need to determine how the N-Sensor should in-
terpret the maps. This can be done through the
Application mode
setting the
Setup/Diagnosis – N-Sensor
menu:
The
Application mode
determines how the N-Sensor handles prescription maps. De-
pending on the selected operation mode, up to 4 different settings are available:
1.
Sensor (standard):
Prescription maps are not used at all. The application rate is
solely based on the N-Sensor reading. This is the default setting for standard N-
Sensor operation.
2.
Sensor with offset map:
The final application rate is calculated as the sum of the
N-Sensor recommendation and the rate from the offset map. The offset map
may contain positive as well as negative rates. If the map is not available or the
vehicle is outside the map area, the application rate will be based on the N-
Sensor only. In this case, there is no difference to the Sensor (standard) set-
ting.
3.
Sensor with overlay map:
The final application rate is the rate from the prescrip-
tion map, if the map is available and the vehicle is inside the map area. Other-
Last revised: 28.01.2009 14:39
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