11. Adjustment
After a long period of usage an adjustment of the instrument might
be necessary.
-
Calibrate for example at nominal volume (see page 41).
-
Calculate mean volume (result of weighing) (see page 41).
-
Adjust the instrument (to the calculated mean volume).
-
After the adjustment, further calibration is necessary to confirm
appropiate adjustment.
Example:
The gravimetric check gives an actual value of 9.90 ml for a 10 ml
instrument set for a nominal volume of 10.00 ml.
1. Insert the pin of the mounting tool into the cover plate, and break
it off with a rotating motion (Fig. 2). Discard the adjustment cover.
2. Insert the pin of the mounting tool into the adjustment screw
(Fig. 3) and rotate to the left in order to increase the dispensing
volume, or rotate to the right to decrease the dispensing volume
(e.g. for an actual value of 9.97 ml, rotate approx. 1/2 turn to the
left).
3. The change in the adjustment is indicated by a red disk (Fig. 4).
Adjustment range
Nominal volume
2 ml
5 ml
10 ml
25 ml
50 ml
100 ml
42
Variable/Fix
One rotation
max. +/-
corresponds to
12 µl
30 µl
60 µl
150 µl
300 µl
600 µl
~ 16 µl
~ 40 µl
~ 80 µl
~ 130 µl
~ 265 µl
~ 400 µl
1
2
3
4