Color Change; Color Change Procedures; Color Change Sequences - Graco ProMix 2KS Operation Manuals

Color Change

Color Change Procedures

Multiple Color Systems
1. Shut off air to the gun.
2. Place the gun in the gun flush box if used, and close
the lid.
3. Switch to Standby
4. Use the scroll keys,
color. Press Enter
sequence.
5. If a gun flush box is not used, trigger
the gun into a grounded metal pail
until the color change sequence is
complete.
6. When the color change indicator light stops flashing
on the Booth Control, the color change sequence is
complete.
NOTE: The color change timer does not start until
the gun is triggered and fluid flow is detected. If no
flow is detected within 2 minutes, the color change
operation aborts. The Booth Control enters Standby
mode at the previous color.
7. When you are ready to spray, remove the gun from
the gun flush box if used, and close its door.
NOTE: The gun flush box door must be closed for
the atomizing air valve to open.
8. Press the Mix
Single Color Systems
1. Follow procedure for Purging Fluid Supply Sys-
tem, page 62.
2. Load the new color. See Start Up, page 55.
3. Press the Mix
312776K
mode at the Booth Control.
to select the new
or ,
to begin the color change
key to start spraying.
key to start spraying.

Color Change Sequences

F . 71 through F . 80 illustrate various color change
IG IG
sequences. See Table 9 to determine which figure to
reference, based on the recipe change and system con-
figuration. The time sequences are detailed in the fol-
lowing paragraphs.
NOTE: For software version 2.04.xxx and older, the sys-
tem uses the color/catalyst purge and fill times from the
new recipe.
NOTE: See Setup Mode on page 27 to select purge
sources and set desired purge, chop, and fill times.
NOTES:
• The system uses old recipe data for the purge cycle.
However, it opens the new color/catalyst valve
based on the new recipe data.
• The system uses the new recipe data for the fill
cycle.
• For the one gun flush box (GFB) option, the spray
gun must be inserted in the GFB during the entire
color change cycle (purge and fill). The GFB trigger
output will be on during the recipe change cycle.
• For the two gun flush box (GFB) option, both spray
guns must be inserted in the GFBs during the entire
color change cycle (purge and fill). The system will
turn each GFB trigger output on and off based on
the preset time for each gun.
• For Special Outputs options, the system will turn
each output on and off based on the preset times.
Each Special Output has two different start times
and durations.
• For systems without dump valves, the First Purge
begins after the Color/Catalyst Change steps are
completed.
• Dump Valve B is required for a Catalyst Change
system.
• When going from Recipe X to Recipe 0, only the
purge cycle data from Recipe 0 is used.
• When going from Recipe 0 to Recipe Y, only the fill
cycle data from Recipe Y is used.
Color Change
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