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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
,
=
=
Summary of Contents for HC5500
Page 6: ...Table of Contents 6 ...
Page 8: ...1 CE Declaration 8 ...
Page 10: ...2 Safety notes 10 ...
Page 26: ...4 System setup 26 ...
Page 30: ...5 Menu 1 Daily settings 30 ...
Page 60: ...8 Menu 4 Toolbox 60 ...
Page 66: ...11 Maintenance 66 ...
Page 76: ...14 Technical specifications 76 ...
Page 78: ...Index 78 ...
Page 80: ...HARDI INTERNATIONAL A S Helgeshøj Allé 38 DK 2630 Taastrup DENMARK ...