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13 - Testing and fine tuning
Testing and fine tuning
Fine tuning the flow constant - PPU
Calibration of the flow transducer is carried out with clean water but small changes may occur when adding pesticides or
fertiliser. This will effect the final readings. This is typically noted when the volume displayed on the display does not equal
the actual known volume that was sprayed out. The below formula can be used to “fine tune” the flow transducer PPU.
For example, the spray tank is filled with 2400 litres of spray liquid.
When sprayed out, the display showed a total of 2300 litres. (Original PPU = 120.0)
Note the relation is inverse
•
To raise the displayed volume, the PPU is lowered.
•
To lower the displayed volume, the PPU is raised.
Pin & Wire connection
AMP Super Seal
Box
Color coding
2
Positive Brown
3
Sig.
Blue
1
Negative Black
NewPPU
Original PPU
Displayed
Volume
×
Sprayed Volume
----------------------------------------------------------------------------------
=
NewPPU
120PPU
2300Litres
×
2400Litres
----------------------------------------------------
115 0
PPU
,
=
=
Содержание HC5500
Страница 6: ...Table of Contents 6 ...
Страница 8: ...1 CE Declaration 8 ...
Страница 10: ...2 Safety notes 10 ...
Страница 26: ...4 System setup 26 ...
Страница 30: ...5 Menu 1 Daily settings 30 ...
Страница 60: ...8 Menu 4 Toolbox 60 ...
Страница 66: ...11 Maintenance 66 ...
Страница 76: ...14 Technical specifications 76 ...
Страница 78: ...Index 78 ...
Страница 80: ...HARDI INTERNATIONAL A S Helgeshøj Allé 38 DK 2630 Taastrup DENMARK ...