Topcon A2677 manual Pressure Boost

X20 Sprayer Reference Manual

100kpa.

The idea is to maintain a spray pattern, even if the application rate is above the desired rate. If a value is set in this option, and the Sprayer speed falls below the set value, the spray system switches to Manual mode and locks the Regulator Valve. When the Sprayer is in this mode it is most likely that the Sprayer will be over applying the chemical.

When the Sprayer speed goes above the set value the spray switches to Auto mode and the Regulator Valve will start controlling.

Select the calculator icon in the Low Pressure Hold window (Figure 8-16 on page 8-46) to enter the value (in kph). Select Enter to save the value you entered and close the window.

Pressure Boost

Leave the Pressure Boost value at ‘0’ when using a 6 second Regulator Valve or faster and especially when using ASC.

Pressure Boost is a function mainly used for viticulture applications and if using a 20 second Regulator Valve (slow).

The idea is to close the regulator to increase the pressure in the Sprayer after the boom spray has switched OFF under Low Speed Shutoff, so the correct application occurs when the Sprayer turns ON again, when entering the next row.

The Pressure Boost compensates for the pressure loss the Sprayer experiences as it travels slower, coming out of the row or when entering the row.

Select the calculator icon in the Pressure Boost window (Figure 8-16 on page 8-46) and enter the value (normally 2-3 seconds).

A2677 Rev 1.5 8-51