Graco PrecisionMix ii, Instructions And Parts List

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Overview 2–9
How the PrecisionMix II 3K Works
Functional Diagram – Component C Dispense
Fig. 2.4
M
R
L
N
Q
P
A
J
A
K
A
C
B
F
A
E
A
D
A
G
A
H
A
K
C
H
C
G
C
D
C
E
C
F
C
J
C
K
B
H
B
G
B
D
B
E
B
F
B
J
B
Component A Component B Component C
TI0086B
6. The component C dispense valve (G
C
) opens and
Component C flows into the first integrator cham-
ber. The fluid is lined up proportionately with
Components A and B. The component C dispense
valve closes when the target volume for Compo-
nent C is reached. See Fig. 2.4.
7. Components A and C flow into a static mixer (M),
where they are mixed. The mixture then flows into
the second integrator chamber (N). See Fig. 2.4.
8. The three components are given a homogeneous
blending as they pass through a second static
mixer tube (P).
9. The three components continue to be alternately
fed into the integrators as long as the gun is trig-
gered. Output from the mixer tube to the spray gun
may be controlled by a fluid pressure regulator (Q).
After the trigger is released, if the gun is not trig-
gered again within four minutes, the system will go
to an idle mode, which closes off the mix manifold.
When the gun is triggered again, the system will
continue the process where it left off. Operation
can be stopped at any time by energizing the
standby input or shutting off the main power
switch.