Meter Calibration - Graco ProMix 2KS Operation

Meter Calibration

To avoid splashing fluid in the eyes, wear eye protec-
tion. The fluid shutoff valves and ratio check valves are
retained by mechanical stops that prevent accidental
removal of the valve stem while the manifold is pres-
surized. If you cannot turn the valve stems manually,
relieve the system pressure, then disassemble and
clean the valve to remove the resistance.
Calibrate the meter:
• The first time the system is operated.
• Whenever new materials are used in the system,
especially if the materials have viscosities that differ
significantly.
• At least once per month as part of regular mainte-
nance.
• Whenever a flow meter is serviced or replaced.
NOTE:
• K-Factors on the Calibration Screen are
updated automatically after the calibration pro-
cedure is completed.
• 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).
• All values on this screen are in cc, independent
of the units set in Configure Screen 1.
• The controller will use the active recipe
K-factors for meter calibration. The active recipe
must be recipe 1 to recipe 60. Recipes 0 and 61
do not have K-factor values.
1. Before calibrating meter A or B, prime the system
with material. For a color/catalyst change system,
make sure the color/catalyst valve is open.
2. Shut off all spray or dispense devices connected to
the ProMix.
3. Close both fluid shutoff valves and sampling valves.
312776B
4. Place the beakers (minimum size - 250 cc) in hold-
ers. Put the sampling tubes into the beakers.
NOTE: If tubes need replacing, use 5/32 in. or 4 mm
OD tubing.
5. On the EasyKey, press the Setup
setup screens.
6. Press the Right Arrow
tion Screen. Press the Enter
either Dose Valve A, B, or Solvent. Press the Down
Arrow key and select Start from the menu. Start
only one at a time.
7. Dispense component A, B, or Solvent into beaker.
a. To avoid splashing, slowly open sampling
valves.
b. For more accurate calibration, adjust the valve
to dispense at a flow rate similar to your produc-
tion spray flow rate.
c. Dispense a minimum of 250 cc; make sure
enough material is dispensed to accurately read
the volume with your beaker. The A and B vol-
umes do not have to be equal or at any particu-
lar ratio.
d. Close sampling valve tightly.
Meter Calibration
key to access
key to select the Calibra-
key to select
59