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When changing between ORGA Setups the error % will be large, but a
second attempt will reduce this.
10. Press ENTER again to confirm and store the new calibration factor, or press
ESC to return to the SETUP menu screen.
11. This entire procedure should be repeated as many times as necessary until
there is an acceptable error. (2 – 3 times is normally sufficient)
It is recommended to reset the PART TOTAL to zero before commencing
drilling. This will enable you after drilling an area, to quantify any error in the
calibration factor by logging the theoretical amount of product used against a
known amount used (a whole bag for example).
5.2.9 Orga Metering System
Sumo’s versatile metering unit. The metering unit is designed so that it can
meter any granular products at any reasonable rate and drilling speeds with
only simple setting changes. The Sumo ORGA Metering Unit does not use
traditional rollers. There are two metering units, one for each hopper. When the
hopper is setup as a single large capacity, only one metering unit is necessary.
The second redundant metering unit can be shut off using the hopper slide
inserted above the metering unit. 6m DTS’s and over also have the half width
shut-off (HWSO) facility. This adds a further Orga metering unit to each product
hopper, depending on drill specification, and therefore there can be up to four
metering units in total per drill.
Set Up
Before any calibration test is performed the Orga Metering Unit must be set up
for the seed required. Larger harder seeds like peas and beans do not require
the nylon insert in the Orga housing. This is simply removed by two bolts. The
setup should be based on the required seed rate, working width of the drill as
well as driving speed. To ensure successful drilling, be sure to take into account
the specific weight of the type of seed. It may also be beneficial to change the
coulter outlets from the standard twin row tip to a single outlet type.
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