Graco VRM 24F872 Instructions Manual page 36

Operation
7. Place waste containers below the ratio check noz-
zles and start a ratio check dispense. Adjust the
ratio check opening screws until the pressures dis-
played are near the values previously recorded
when dispensing through the mixer (step 4).
8. Press to enter the Setup screens then press
left or right to navigate to Advanced #3 screen.
Turn on the "Enable Ratio Check Weight Mode
Entry" option.
9. Press to exit the setup screen and verify the
ratio check option is selected.
10. With new waste containers below the ratio check
nozzles, start the dispense by pressing the
footswitch or . At the end of the dispense, enter
the A (Red) and B (Blue) material weights into the
prompt boxes. Enter the weight of each bucket for
both materials.
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NOTE: After entering the net weight of B (Blue) material,
the ADM will inform the user how close the respective
flow of the pump was to the desire rate.
11. Press to accept the information.
NOTE: The ADM will respond by generating a "System
Learning Setpoint" advisory and the corresponding advi-
sory light will be illuminated on the machine light tower
(if installed).
12. Press to accept the advisory. Repeat steps 10
through 11 until the percentages approach zero and
the advisory is removed.
NOTE: The machine will be calibrated for the flow and
ratio selected once the advisory is removed.
13. If the user needs to operate at a second flow or
ratio, repeat the calibration process for the second
desired flow or ratio.
NOTE: The machine will store the necessary control
data for both calibration points.
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