Graco PRECISION MIX 949-999 Manual page 15

Proportioning controller
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Setup Screens (continued)
Purge Component A
PURGE A
TIME IS XX.X SEC
NEW VALUE? XX.X
NO
QUIT
or
PURGE A
VOLUME IS XXX cc
NEW VALUE? XXX
NO
QUIT
Press NO
Purge Component B on Time or Volume
PURGE B ON TIME
CHANGE TO VOLUME?
NO
YES
QUIT
Press NO to keep on TIME
Press YES to change to VOLUME
Last Dispense of the Purge Sequence
LAST PURGE
TIME IS XX.X SEC
NEW VALUE? XX.X
NO
QUIT
or
LAST PURGE
VOL IS XXX cc
NEW VALUE? XXX
NO
QUIT
Press NO
Purge Component B
PURGE B
TIME IS XX.X SEC
NEW VALUE? XX.X
NO
QUIT
or
PURGE B
VOLUME IS XXX cc
NEW VALUE? XXX
NO
QUIT
Press NO
684-015
Pendant Screens
The purge sequence consists of two purge valves, one for
Component A and one for Component B, alternating on and
off. The value you enter for PURGE A determines how long
the Component A purge valve is open for each dispense
cycle during the purge sequence, with the exception of the
first and last dispense, which have their own values.
enter a new value, key in the number and press ENTER.
The value can be set from 0 to 99.9 seconds or 0 to 999
cubic centimeters. It will display on line two.
With this screen, you select how the Component B portion of
the urge sequence will count down, by time or by volume, To
purge by volume, you must have a flow meter in line with the
Precision Mix™ Component B purge valve.
functions the same as the Purge Component A selection
screen.
The last dispense of the purge sequence is always
Component B. The last dispense of the purge sequence is a
settable time/volume. You can set the time/volume for the
LAST PURGE to be more or less than the setting of the rest
of the purge cycle. To enter a new value, key in the number
and press ENTER. The value can be set from 0 to 99.9
seconds or 0 to 999 cubic centimeters. It will display on line
two.
The value you enter for PURGE B determines how long the
Component B purge vale is open for each dispense cycle
during the purge sequence. To enter a new value, key in the
number and press ENTER. The new value will display on
line two. The value can be set from 0 to 99.9 seconds or 0
to 999 cubic centimeters. It will display on line two.
To
This screen
15

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