Operating
Tips
Suggested Tips
•The faster you dispense the more backoff you will need. That’s because the speed at which the piston is traveling exceeds the flow rate of the material out of the dispense tip. Therefore, creating internal pressure. More reverse motion is required to get the internal reservoir pressure back to zero. We recommend you start with a slow rate and progress from there.
•The LDS9000 positively displaces fluids. That means if you program
.02cc’s of fluid, you will get .02cc’s out of a very small tip or a large tip. The only difference is trying to force the fluid through a very small tip will take twice as long. We recommend you increase the fluid flow by using our FreeFlowTM tapered tip.
•A change in the dispense rate will change your deposit size. When the piston moves forward it often exceeds the flow rate of the fluid, thus creating pressure buildup. The best way to rapidly relieve that pressure is to apply reverse motion. When the dispense rate is doubled the fluid has half the time to flow before reverse motion, therefore the deposit size becomes smaller. Conversely, when the dispense rate is cut in half the fluid has twice the time to flow before reverse motion, therefore the deposit size becomes larger. The only way to maintain the same deposit size at all speeds is to adjust all parameters.
First Shot Set Up
•Follow the steps listed in the LDS9000 Rapid Setup Guide. We recommend you work with the Fishman test fluid provided in your dispenser to establish the first deposit.
•When priming your dispense tip watch how long the fluid flows out of the tip. Little to no ooze, start with a minimum amount of backoff
•Start with a slow dispense rate and adjust your dispense volume and backoff until you achieve the right size deposit. Once your deposit is stabilized try adjusting the speed to your liking, watch the effect on your deposit. Return to volume and backoff to tweak the deposit size. Always allow the deposit to stabilize via 5 or 6 dispenses before making the next adjustment.
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