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5
Dispensing Recommendations
1. Following a period of nonuse dispense several times into a trial plate to avoid
evaporative losses from the outlet needles.
2. If the inlet Cannula is removed from the reservoir it is recommended the system be
re-primed to prevent a possible dispensing error caused by an introduced air bubble.
USING THE SYSTEM
Important: This dispensing is supplied with an inlet filter assembly. Failure to
use this filter can allow harmful debris to enter and possibly damage the
precision valves. Not using the filter may void the warranty coverage of the
valves. Periodic system cleaning is strongly recommended as described in the
cleaning and maintenance section.
The following instructions assume that:
1. The initial setup is complete.
2. The dispense head holder has its edge aligned with the positioning arrow and the
dispense head needles are centered in the plate wells.
3. The reservoir is in place and filled with the selected reagent.
4. The dispense program has been set.
5. The COLUMN FORMAT SWITCH is in the proper position.
Priming the System
1. Loosen the dispense head holder cross piece by loosening its thumb screw and
raise the dispense head until an appropriate catch vessel will fit underneath, or
remove the dispense head and hold over a catch vessel.
2. Press the [MODE] key once to select PRIME.
3. Press the [+ / START] key. This will initiate a prime cycle. [– / STOP] will stop
the priming.
4. While fluid is flowing tap lines to encourage small bubble removal.
5. Repeat the cycle until bubble free reagent is observed. Reinstall dispense head
and adjust height of holder to approximately 1/4” above top of microplate.
6. Place a trial plate on the conveyor and press the conveyor front mounted START
/ STOP button. Dispense into 3 or 4 columns then press the START / STOP
button again.
7. Press the [MODE] key 3 times to select HOME.
8. Press the [+ / START] key. This process is used to encourage the removal of
any residual bubbles that may not have been purged by priming.
9. Again press the conveyor START / STOP button and dispense material into the
balance of trial plate.