Hardi 5500

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HARDI CONTROLLER 5500
Fine tuning the flow constant - PPUFine tuning the flow constant - PPU
Fine tuning the flow constant - PPUFine tuning the flow constant - PPU
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.
New PPU =
Original PPU x Displayed Volume
Sprayed Volume
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)
New PPU =
120.0 (Original PPU) x 2300 (Displayed Volume)
= 115.0
2400 (Sprayed Volume)
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 connectionPin & Wire connection
Pin & Wire connectionPin & Wire connection
Pin & Wire connection
AMP Super Seal Box
GB D F DK E
2 + Brown Braun Marron Brun Marrón
3 Sig Blue Blau Bleu Blå Azul
1 - Black Schwarz Noir Sort Negro
Testing and fine tuning