Graco ProMix 2KS Operation page 60

Meter Calibration
8. The volume that the ProMix measured displays on
the EasyKey.
9. Compare the amounts on the EasyKey to the
amount in the beakers.
NOTE: For maximum accuracy, use a gravimetric
(mass) method to determine the actual volumes dis-
pensed.
10. If the screen and actual volumes are different, enter
the actual dispensed volume in cc for A, B, or Sol-
vent Volume field, and press the Enter
If the value was substantially different, repeat the
calibration process.
NOTE: If the screen and actual volume is the same
or if for any reason you want to cancel the calibra-
tion procedure, scroll to Abort on the Calibration
Screen menu and press the Enter
11. After the volume for A, B, or Solvent is entered, the
ProMix 2KS controller calculates the new flow meter
K-Factor and shows it on the Calibration Screen.
NOTE: K-Factor values on the screen are viewable
only. If needed, you can manually edit the K-Factors
in Advanced Setup Screen 4 (page 34) or Recipe
Setup Screen 5 (page 38).
60
12. Always purge sampling valves after calibrating
meters. Use one of the following methods.
•
•
NOTE: If fluid hardens in sampling tubes, replace
them with 5/32 in. or 4 mm OD tubing.
key
.
13. Make sure both sampling valves are closed and
both fluid shutoff valves are fully open.
14. Before you begin production, clear the system of
solvent and prime it with material.
a. Go to Mix mode.
key
.
b. Trigger the gun into a grounded metal pail until
c. To begin operation, see Start Up, page 49.
Follow the Purging Sampling Valves and
Tubes procedure, page 58.
Place the sampling valve fluid tubes into a com-
patible cleaning fluid (TSL or solvent) or cap
them.
mixed material flows from the gun nozzle.
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