Gilson PIPETMAN F Series, Manual

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6
PIPETMAN
®
F
the push-button until notches fit into
the grooves in the calibration sleeve
(Figure ), then turn the key:
• clockwise to decrease the volume;
• counterclockwise to increase the
volume; go above the desired
value, then decrease the volume
to reach the required setting.
Example: When using a Pipetman F100 to aspirate a
particularly viscous solution, you may determine gravi-
metrically that the volume delivered is 98.8 µL, and the
display reads ‘E 0.2’. Therefore, you wish to increase the
volume dispensed by 1.2 µL. As the interval between
each letter on the calibration display represents 0.4 µL
for the F100 (1/10 of 4 µL), the calibration tool must be
turned 3 units until the display reads ‘B 0.2’.
It is possible to alter the volume by more than
one full turn in the counterclockwise direction.
In this case, remember to readjust the same
number of turns when it is necessary to return to
the original setting.
Check the new volume gravimetrically. If the vol-
umes delivered are still not sufficiently close to
the desired value, make another slight adjustment
in the relevant direction.
Be sure to change tips
between volume setting adjustments and to
pre-rinse each new tip.
When the Pipetman F is readjusted
to compensate for a particular solu-
tion, the original setting (ex. 0.) can
be noted on the self-adhesive labels
supplied (Figure 4).
Liquids of high density, vapor pressure, or viscosity
are best pipetted by the Gilson Microman
®
positive
displacement pipette.
Figure 3
Figure 4