Testing And Fine Tuning - Hardi 5500 Instruction Book

HARDI CONTROLLER 5500

Testing and fine tuning

Fine tuning the flow constant - PPU Fine tuning the flow constant - PPU Fine tuning the flow constant - PPU
Fine 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.
Original PPU x Displayed Volume
New 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)
120.0 (Original PPU) x 2300 (Displayed Volume)
New PPU =
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 Pin & Wire connection Pin & Wire connection Pin & Wire connection Pin & Wire connection
AMP Super Seal Box
2
3
1
40
Sprayed Volume
2400 (Sprayed Volume)
GB
+ Brown Braun
Sig Blue Blau
- Black Schwarz
= 115.0
D F DK
Marron Brun Marrón
Bleu Blå
Noir Sort Negro
E
Azul