PIPETTOR OVERVIEW
8
The current speed setting is always shown at the
bottom of the display. These settings can be selected
and changed at any time before a program step is
performed.
[Prog]
IMPACT
2
only
The Program key on the IMPACT
2
enables you to
store up to five separate programs in memory for
future recall. Each program can hold up to 40 steps.
Programs are stored in reserved program location
numbers 1 – 5. Program “0” is used as a “scratch
pad” where temporary programs can be written, run,
and overwritten easily. Program “0” is considered to
be an “open” program (see Section C.2, Program-
ming the IMPACT
2
).
[Purge]
The Purge key enters a purge prompt anytime during
a pipetting operation to abort the program. By
pressing the Purge key, then pressing the trigger,
you can dispense any remaining liquid from the pipet
tips and return to the beginning of the program.
The Purge key is also used to enter the purge step
into a program.
Note: If there is insufficient liquid for a final dispense
step, the pipettor emits a beep tone and auto-
matically displays the purge prompt.
RUN The RUN mode performs the operation that is
displayed, such as fill, dispense, mix, or purge.
When "Run" appears in the display, you can activate
the RUN mode by pressing the trigger. At the end of a
pipetting sequence, the pipettor emits a triple beep
tone and returns to the beginning of the program. The
pipettor remains in RUN mode until you program a
new pipetting sequence.
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