Ransburg Evolver SE Robotic Atomizer A12455-XXXXXXXX - Manual (Page 21)

AA-09-01.1 : Evolver SE
EVOLVER SE GUN CONTROLS (Fluid Valve / Trigger)
Trigger and Dump: The fluid valves in the Evolver SE are actuated by an air signal. The air pressure must exceed 70
psi (4.8 bar) to assure proper actuation of the valve. Applying air to the valve actuator turns on the fluid flow for the
valve.
The paint trigger valve controls the paint flow to the applicator. When actuated, paint flows through the valve to the fluid
tube and into the spray head.
The dump valve controls the paint flow through the dump line. When actuated, paint flow is directed to the dump return
line. This provides a method of rapidly removing paint from the incoming line for cleaning and/or color change. Normally
the dump valve is not actuated at the same time as the paint valve since the paint valve is intended to cause the fluid to
flow to the applicator head at the set input pressure.
EVOLVER SE GUN CONTROLS (Air)
Atomization (A) / Fan Air (F): The atomization and fan air are turned on by the trigger line and are controlled by an
internal air valve located in the applicator head. During normal operation with the applicator triggered off, there is a slight
bleed of air through the atomization port. This helps keep the passage clean.
Atomizing Air: Adjustments are made through the robot PLC or a manually adjustable air regulator. The lowest air
pressure required to break up the paint should be used. Lower atomizing air pressures result in less overspray and in-
creased transfer efficiency.
Fan Air: Adjusting the fan air increases or decreases the size of the spray pattern. Increasing pressure increases pat-
tern size. Pattern adjustment should be made to suit the size and shape of the object being painted. This adjustment is
made through the robot PLC or a manually adjustable air regulator.
HVLP Spray: The Evolver SE HVLP models, when properly set-up, are designed to provide maximum transfer efficien-
cy by limiting air cap pressures to 10 psi (0.7 bar). In the U.S., this complies with rules issued by SCAQMD and other air
quality authorities.
NOTE - For HVLP operation (max. 10psi, 0.7 bar cap pressure), DO NOT exceed the air inlet pressure, which was
read at the gun base before tubing manifolds, given as follows:
PSI (Bar) CAP #
42 (2.9) 48-1
42 (2.9) 481-1
Air cap pressures (Atomization & Fan) should be set using an air cap test kit. This provides a consistent meas-
urement, so initial settings may be duplicated at any time.