User`s guide

Filling
the Syringe
Barrel
14
www.nordsonefd.com [e-mail] USA & Canada 800-556-3484 Europe [phone] India+ 91 80 4021 3600 Asia +China: [phone]
Sales and service of Nordson EFD dispensing systems are available worldwide.
Filling procedure for watery fluids and vacuum control
The Ultimus vacuum regulator allows low viscosity fluids, even water, to be consistently dispensed
without dripping between cycles. A vacuum is exerted above the fluid in the barrel to prevent
dripping. For medium to high viscosity fluids, the recommended vacuum setting is 0.0.
If you are dispensing watery solvents, cyanoacrylates or anaerobics, request the blue LV Barrier
piston and follow these steps to fill the syringe barrel and set the vacuum control.
1. Twist a blue tip cap onto an empty syringe barrel and
pour your fluid in. Insert the blue LV Barrier piston. Allow
an air gap between piston and fluid as shown. (If you
are using the SmoothFlow piston, push the white piston
down until it comes in contact with the fluid.)
2. Attach the syringe to the EFD adapter assembly.
3. Snap the safety clip tightly closed to prevent any
dripping.
4. Remove the tip cap and attach a precision dispense tip.
5. Set air pressure at 2 psi (0.1 bar).
6. From TIMED mode, press STEADY.
7. With the syringe barrel pointing down over a container, unsnap the safety clip. Press and hold
the foot pedal or finger switch to fill the tip.
8. As a drop begins to form at the end of the tip, slowly turn the vacuum regulator knob clockwise
to stop the drip. Wipe the tip and adjust vacuum as necessary.
9. Return to TIMED mode.
10. Rest the tip on the Dot Standards sheet. Press the foot pedal and release. Check the dot size.
Increase or decrease by adjusting pressure or time as needed.
Caution: Use EFD filter/muffler #7016875 or wear adequate ear protection when operating the
vacuum in close proximity for a prolonged period of time.
Note: For best results when dispensing watery-thin fluids, Nordson EFD recommends the use of
the Vacuum Suck-Back Filter Trap #7017115. This is guaranteed to prevent fluid from being
sucked back into the dispenser. See page 26 for a sample drawing, or call EFD or email
[e-mail] for details.
LV Barrier
Air gap
Vacuum
Control