Test Screens - Graco XM 24W626 Operation Manual

Test Screens

Use this screen to run batch dispense tests, pump tests,
and down stream valve leak tests.
Icon Function
Pump Test: (calibrate) dispenses 750cc of
each A and B; verifies pump selection,
operation, and metering. In System Weight
Mode, this calibrates the system by enter-
ing weights.
Batch Dispense: dispenses proportioned
amounts of A and B with a selectable total.
Down Stream Valve Leak Test: test if
valves after the dosing valves hold pres-
sure.
Test Mode Selection: switch between vol-
ume and weight test mode.
Pump Test/Calibrate
Use this screen to dispense a fixed 750 ml volume of
material from each metering pump. When the metering
pump is active it flashes in black on the screen. When
the metering pump completes dispensing it displays
gray on the screen. This test will stall the A and B meter-
ing pumps on each stroke to verify they hold pressure.
See Pump and Metering Test and Calibration for
Ratio by Weight Mode procedure on page 48.
If the system ratio mode is by volume, pressing
will allow the test to be run either by measuring volumes
or weights. If system ratio is by weight (standard on XM
PFP systems), then the dispensed materials must be
measured by weight.
3A2776H
Appendix A - User Interface Display
Confirm Pump and Metering Test
This screen displays when the pump test completes
without error. 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 net weights of each dispensed material in the
respective input boxes on this screen. If they are within
the ratio tolerance set on the Setup Mode 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 72.
System Ratio Mode by Volume - Test by Weight
79