162 | Chapter 3: Operation
To improve performance and possibly preserve reagent, increase the number of cycles
and reduce the volume of each cycle. Several small primes often do a better job pushing air
from the manifold than one or two large primes.
4. You can Submerge the dispense tubes in the fluid after the prime, if desired.
This requires filling the priming trough inserts, one for each syringe. Each
reservoir holds approximately 6.5 mL.
After the dispense tubes have been primed, the manifold moves down
into the priming trough inserts. When both Syringes are enabled, the
soak duration begins after both dispensers are primed.
n Important: When using the submerge option, specify a volume that fills
the priming trough inserts with sufficient fluid to cover the tubes, e.g.
6000 µL. And, be sure to use the priming trough inserts when the option
is enabled. Learn more about soaking the dispense tubes...
Set the Submerge Duration and fill the Submerge checkbox to enable this
option.
n Remove the Peri-pump cassette or its priming trough insert when
soaking the Syringe dispenser or washer manifolds.
5. Optionally, adjust the Pump Delay when dispensing highly viscous fluids, if
necessary to improve performance.
When dispensing highly viscous fluids, the tubing's check valves perform more slowly.
Delaying the syringe pump sufficiently to allow the specified amount of fluid to pass
through the check valves before being pumped into the syringe has been shown to
improve dispense accuracy.
Begin by setting the delay to 500 msec. Experiment with different settings to determine
the optimal value for your fluid.
MultiFlo™ FX Multi-Mode Dispenser
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