Graco ProMix 2KS Operation page 98

System Operation
Purging Sampling Valves and Tubes
Follow this procedure after meter calibration.
1. Go to Standby mode (remove Mix input).
2. See F . 106, page 94. Close both fluid shutoff
IG
valves and sampling valves.
3. Route the sampling tubes into a grounded waste
container.
4. On a single color system, attach a solvent supply
line to Flow Meter A inlet.
5. On the EasyKey, press Setup
the Advanced Setup screens.
6. Press the Right Arrow
tion screen. Press the Down Arrow
select Purge from the menu. Press the Enter
key
.
Dose A, solvent purge valve (B side), and color
change solvent valves (if used) will open.
F . 107. Calibration Screen
IG
98
key and access
key to select the Calibra-
key and
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7. To avoid splashing, slowly open the sampling
valves and dispense solvent until the valves and
tubes are clean.
NOTE: When performing a calibration purge, the
solvent valve(s) close automatically after 2 minutes
or when Abort is selected on the screen.
8. Close sampling valves.
NOTE: Select Abort on Calibration screen to cancel
current calibration and close dose or purge valves.
9. Fully open both fluid shutoff valves.
10. On a single color system, reconnect component A
fluid supply line to flow meter A.
NOTE: After calibration it is necessary to clean out con-
taminated mix material. Do a manual purge and resume
the recipe just tested, or do Recipe 0 then go on to the
next recipe.
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