Graco XM PFP Setup & Operation page 79

Ratio by Weight Mode
This screen displays two boxes where the A and B
sample 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 69. The tolerance is set
on the Setup Ratio Test screen on page 71.
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
material 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
dispensing 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
volumes or weights. If system ratio mode is by weight,
then the dispensed materials must be measured by
weight.
3A2776K
Appendix A - User Interface Display
Confirm Batch Dispense Test
This screen displays when the batch dispense test
completes 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 69. The tolerance is set
on the Setup Ratio Test screen on page 71.
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 69.
System Ratio Mode by Volume - Test by Weight
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