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System Operation
90 312779E
10. Purge air from the fluid lines.
a. Shut off air to the gun by clos-
ing the air regulator or shutoff
valve for the gun atomizing air.
b. Trigger the gun (man-
ual or automatic) into
a grounded metal pail.
c. Go to Mix mode.
d. If the flow meters over-run because of air in the
system, an alarm will occur and operation stops.
Press the Alarm Reset
key to clear
alarm.
e. Go to Mix mode.
11. Adjust the flow rate.
The fluid flow rate shown on the EasyKey Status
screen is for either component A or B, depending on
which dose valve is open. The fluid supply lines on
the screen highlight to show which dose valve is
open.
Watch the fluid flow rate displayed on the Status
screen while the gun is fully open. Verify that the
flow rate of components A and B are within 10% of
each other.
If the fluid flow rate is too low: increase air pres-
sure to component A and B fluid supplies or
increase the regulated fluid pressure.
If the fluid flow rate is too high: reduce the air
pressure, close the fluid manifold dose valves fur-
ther, or adjust the fluid pressure regulator.
NOTE: Pressure adjustments of each component will
vary with fluid viscosity. Start with the same fluid pres-
sure for component A and B, then adjust as needed.
NOTE: Do not use the first 4-5 oz. (120-150 cc) of mate-
rial as it may not be thoroughly mixed due to alarms
while priming the system.
12. Turn on atomizing air to the gun. Check the spray
pattern as instructed in your spray gun manual.
NOTE: Do not allow a fluid supply tank to run empty. It
is possible for air flow in the supply line to turn gear
meters in the same manner as fluid. This can lead to the
proportioning of fluid and air that meets the ratio and tol-
erance settings of the equipment. This can further result
in spraying uncatalyzed or poorly catalyzed material.
F
IG
. 102. Status Screen Flow Rate Display
Manual
gun shown