Graco XM 24W626 Operation Manual page 80

Appendix A - User Interface Display
Ratio by Weight Mode
This screen displays two boxes where the A and B sam-
ple weights are entered to calibrate the machine to run
in Ratio by Weight Mode. The weights must be entered
in grams.
The target ratio by weight for this test is set on the
Setup Home screen on page 70. The tolerance is set
on the Setup Ratio Test screen on page 72.
Once entered, a check will appear in the box. There will
still be an X through the scale in the upper right corner
until a Ratio Test is performed successfully.
System Ratio Mode by Weight
Batch Dispense or Ratio Test
Use this screen to dispense a selected total volume of
material on ratio. For example, 1000 ml at 4:1 = 800 ml
of A + 200 ml of B. The total batch volume can be
selected from the drop down menu. The dispense mate-
rial can be used to check the ratio or to mix together and
use in production. See Batch Dispense or Ratio Test
procedure on page 50.
When the metering pump is active it flashes in black on
the screen. When the metering pump completes dis-
pensing it displays in gray on the screen.
If the system ratio mode is by volume, pressing
will allow the ratio test to be run either by measuring vol-
umes or weights. If system ratio mode is by weight, then
the dispensed materials must be measured by weight.
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Confirm Batch Dispense Test
This screen displays when the batch dispense test com-
pletes without error. This screen displays the selected
ratio between the metering pumps and the desired
weight of material dispensed from each metering pump.
The gray at the bottom of the beaker represents the
material dispensed by metering pump A. The black at
the top of the beaker represents the material dispensed
by metering pump B.
There are three variations that affect how the screen is
used:
Ratio by Volume Mode - Test by Volume
Enter the volumes of each dispensed material in the
respective input boxes on this screen. If the calculated
ratio is within the ratio tolerance set on the Setup Ratio
Test screen, a check will appear in the box. The results
are entered into the USB logs.
The target ratio by volume for this test is set on the
Setup Home screen on page 70. The tolerance is set
on the Setup Ratio Test screen on page 72.
System Ratio Mode by Volume - Test by Volume
Ratio by Volume Mode - Test by Weight
Enter the weights of each dispensed material in the
respective input boxes on this screen. If calculated ratio
is within the ratio tolerance set on the Setup Ratio Test
screen, a check will appear in the box. The results are
entered into the USB logs.
The target ratio by weight for this test and tolerance is
set on the Setup Ratio Test screen on page 70.
System Ratio Mode by Volume - Test by Weight
3A2776H