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X20 Sprayer Reference Manual
Min PWM
To set the Min PWM put the Sprayer into Manual mode from the
Working screen, with Agitation on full, all Boom Sections ON
and a manual pressure gauge installed.
Determine the minimum pressure value for the spraying system,
which is normally the lower limit of the nozzles being used. For
this example we will use 100kpa.
From the Working screen, making sure the MANUAL button is
selected, use the Dec button to decrease the pressure until 100kpa
is reached (taking the reading from the manual pressure gauge).
Then go to the Options>Sprayer>Settings page. Starting at 5%
increase the value to 10% and select the OK button to accept the
change, then take a look at the pressure gauge.
Keep increasing the value in 5% increments (after each change,
close the window by selecting the OK button) until the pressure
just starts increasing above 100kpa on the manual pressure
gauge. Use the value before the pressure increased above 100kpa;
therefore, if 30% made the pressure increase above 100kpa, then
use 25% as the Min PWM value.
The value will normally be around 25%.
Using High Minimum PWM Range Option
If after selecting 40% PWM and there is still no increase of
pressure above 100kpa, then your system may have a Minimum
PWM value above 40%. If this is the case, select High Minimum
PWM Range from the Valve Options window. The Min PWM
window will now have a range from 42.5% PWM to 60% PWM
displayed.