24
HARDI CONTROLLER 5500
3.2
CALIBRATION
Flow calibration
3.2.1
FLOW CONSTANT
XXX.XX PPU
Menu 3.2 Flow calibration
Menu [3.2 Flow calibration]Menu [3.2 Flow calibration]
Menu [3.2 Flow calibration]Menu [3.2 Flow calibration]
Menu [3.2 Flow calibration]
The flow transducer can be calibrated theoretically or with two practical
methods. The practical methods are preferred. Calibration is done with
clean water. The Flow Tank method is time consuming, but is more accu-
rate than the Flow Nozzle method.
When changing to nozzles with more than a 100% increase or decrease in
output, it is recommended to re-calibrate the flow transducer.
Calibration is recommended to be done at least once during the spraying
season. Use the chart at the back of the book to record the values.
Menu [3.2.1 Flow constant]Menu [3.2.1 Flow constant]
Menu [3.2.1 Flow constant]Menu [3.2.1 Flow constant]
Menu [3.2.1 Flow constant]
Use the navigation keys to change the flow constant theoretically.
NOTE: PPU indicates the number of
pulses which theoretically come from
the flow transducer whilst 1 litre of liquid
passes through. Approximate PPU
values for different flow housings are as
follows:
Housing Housing Flow range Orifice PPU
identification l/min mm value
S/67 One outside groove 5 - 150 13.5 120.00
S/67 No groove 10 - 300 20.0 60.00
S/67 Two outside grooves 35 - 600 36.0 125.00
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