Graco XM Series Operation page 86

Appendix A
Park Mode
Users must be in this mode to park fluid rod pumps at
the bottom of the stroke. Press the button below the
park icon to enter this mode.
Ratio Mode
Displays the current ratio or the restrictor screen. To
access this screen, press
indicates whether the B restriction adjustment should be
turned clockwise or counter clockwise. See Adjust B
Machine Outlet Restriction, page 42.
The ratio displayed is the weight ratio if the machine is in
Ratio by Weight Mode. The ratio displayed is the volume
ratio if the machine is in Ratio by Ratio Mode.
If the field is enabled on the Enable Setup
screen, the Spray Mode screen will be replaced by the
bar graph screen after 10 seconds of spray time. Press
to return to the Spray Mode screen.
Restrictor Screen
Icon Function
Display Ratio: show the accuracy of the
fluid mix ratio.
Display Restrictor Adjust: Adjust the
restrictor to optimize the mix ratio.
• At the maximum fluid flow, the bar
should be in the center.
• At less than maximum flow, the bar
should be on the right side.
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The bar graph
Test Screens
Test screens enable users to run batch dispense tests,
pump tests, and down stream valve leak tests.
Icon Function
Pump Test: dispenses 750cc of each A and
B; verifies pump selection, operation, and
metering. In system weight mode, this
calibrates the system by entering 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
pressure.
Test Mode Selection: Switch between
volume and weight test mode.
Pump Test/Calibrate
This screen enables users to dispense a fixed 750 ml
volume of material from each pump. When the pump is
active it flashes in black on the screen. When the pump
completes dispensing it displays gray on the screen.
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 mode is by weight, then the
displaced materials must be measured by weight.
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.
312359R