Eppendorf Pipette Reference 2 - Manual (Page 30)

Maintenance
Eppendorf Reference
® 2
English (EN)
30
6.5.2 Changing the user adjustment
If the adjustment is changed, the volume changes by a certain value. Strictly speaking, the change only
applies to the testing volume.
Example:
You readjust a 10 – 100 μL pipette with a volume setting of 100 μL by 1 μL (1 μL ≙ 1 %). If the volume
setting is 10 μL, the pipette is also adjusted by 1 μL (≙ 10 %).
Auxiliary aids from the delivery package
• Pin
• Red plastic adjustment seal (ADJ)
1. Insert the pin in the middle of the gray adjustment seal (ADJ).
2. Remove the adjustment seal.
3. Insert the adjustment tool.
4. Turn the adjustment tool until the adjustment display shows the desired value.
6. Carry out weighings to check the accuracy and precision.
7. Attach the red adjustment seal after the inspections.
If the adjustment is meant for a specific liquid, mark the pipette accordingly. Use the labeling area on the
pipette for this, and write down the liquid and the volume. Carry out a gravimetric test for each adjustment
change. Follow the EN ISO 8655-2 and EN ISO 8655-6 test procedures. A Standard Operating Procedure
(SOP) and further information on user and factory adjustment settings can be found on the Reference 2 CD
and on our website www.eppendorf.com.
5. Read the set value distortion-free using the aligning aid in
the viewing window.
1 1
ADJ
+ -
1000 µL