Graco ProMix PD2K, Operation

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Setup Mode Screens
Air/Solvent Air/Solvent
Air/Solvent Chop
Chop
Chop
Air/Solvent Chop replaces the standard Gun Purge
Time parameter on the Flush screen. Instead the
purge is split into three phases: First Purge, Chop,
and Final Purge. The Chop Phase will always start
with Air and each phase has multiple configuration
parameters.
Figure 52 Flush Screen with Air/Solvent Chop
First First First Purge Purge Purge
Select the material to be either Air or Solvent and
the length of time for the first purge phase, which
dispenses only the material selected.
Air Air Air Chop Chop Chop
Set the air chop duty cycle for the chop phase.
Solvent Solvent Solvent Chop Chop Chop
Set the solvent chop duty cycle for the chop phase.
Total Total
Total Chop
Chop
Chop
Set the length of time for the chop phase. The
system will switch between air and solvent pulses
according to the duty cycles set for the length of the
Total Chop time.
Final Final
Final Purge
Purge
Purge
Select the material to be either Air or Solvent and
the length of time for the final purge phase, which
dispenses only the material selected.
Figure 53 Air/Solvent Chop Timing Diagram
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