Calculating the exact forward speed
u
With a semi-filled machine, drive a distance of 100 m on the field.
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Stop the time required for this.
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The exact forward speed is indicated at the scale of the calibration test calculator.
Fig. 31: Scale for calculating the exact forward speed
The exact forward speed can also be calculated using the following formula:
Forward speed (km/h) =
360
Time over 100 m
Example: You need 45 seconds for 100 m:
360
= 8 km/h
45 s
Determining the nominal output volume per minute
To calculate the nominal output volume per minute, you will require the following:
• The exact forward speed
• The working width
• The desired application rate
Example: The nominal output volume at a particular outlet is to be determined. Your forward speed is
8 km/h, the working width is specified to be 18 m and the application rate shall amount to 300 kg/ha.
8. Calibration
64
5902916 MDS 8.2/14.2/18.2/20.2
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