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Setup
312759R 43
Adjust Open Dispense
Valve (ODV) Timing
When a shot is performed, the dispense valve needs to
open at a precise time for material to be dispensed
properly. If the dispense valve opens too early, material
may drain from the static mixer before the shot starts. If
the dispense valve opens too late, pressure may build in
the machine before the dispense valve opens causing
material to forcefully spray out of the mixer.
The Open Dispense Valve Timing should also be
adjusted for material viscosity. Thicker materials should
have the dispense valve open earlier and thinner materi-
als should have the dispense valve open later.
A positive value for Open Dispense Valve Timing indi-
cates the dispense valve will open after the piston is
engaged in the cylinder. A negative value indicates the
dispense valve will open before the piston is engaged in
the cylinder.
If a high positive number is entered for ODV timing, such
as 6.0 mm, the dispense valve may not open resulting in
the fluid stalling against the dispense valve. The fluid in
the hose lines will remain under pressure until the piston
is manually retracted using the Manual screen, see
Manual Screen on page 36.
1. Navigate to the Calibration screen. See Screen
Navigation Diagram, page 16.
2. Press the Adjust Open Dispense Valve Timing
button (FF).
3. Use the numeric keypad to enter a value for the
ODV Timing. Use the +/- key to switch from positive
to negative and negative to positive.
4. Press the Enter button ( ) to accept the new
value or press the Abort/Cancel button ( ) to
keep the previous value.
F
IG. 27
Key:
FF Adjust Open Dispense Valve Timing
FF