PIPETTOR OVERVIEW
7
Operation Keys:
[On/Off]
The On/Off key turns the pipettor on or off. When the
pipettor is turned on, it emits a beep tone, flashes
"ZERO" on the display, then automatically resets the
pistons to zero position. After zeroing, the display
shows the first step of the program in the RUN mode.
Note: If the pipettor is being programmed for the first
time, the first step will be the fill operation, with the
default fill volume. See Section C.1, Program-ming
the IMPACT, for the default settings.
[Speed]
The Speed key controls the rate at which the liquid is
aspirated or dispensed. The speed setting can be
changed by repeatedly pressing the Speed key.*
For the IMPACT, three speed settings are available:
Speed Setting Display
SLOW S F
MEDIUM S F
FAST S F
For the IMPACT
2
, five speed settings are available:
Speed Setting Display
SLOW S
MEDIUM SLOW S
MEDIUM S
MEDIUM FAST S
FAST S F
The IMPACT
2
also features independent speed
adjustment. Speed settings can be changed within a
stored program or during the execution of a program
(see Section C.2.4, Pipetting Speed Adjustment).
*NOTE: IMPACT
2
speed settings are changed
through the Special Function key (see Special
Function key section on page 11) or by using the
volume key (see Section C.2.4, Pipetting Speed
Adjustment).
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