Eppendorf Research plus - Manual (Page 24)

5 Maintenance
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Eppendorf Research® plus — Operating manual
5.5.2 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.
Auxiliary equipment
•
Supplied adjustment tool (order no. 3120 633.006)
•
Supplied red adjustment seal (ADJ)
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%).
1. Remove the gray adjustment seal.
2. Keep the ejector pressed.
3. Insert the adjustment tool (from the delivery package).
4. Turn the adjustment tool until the adjustment display shows the desired value.
6. Carry out weighings to verify accuracy and precision.
7. After the tests, close the opening with the red adjustment seal (from the delivery package).
If the adjustment is meant for a specific liquid, mark the pipette accordingly. Use the labeling area
on the pipette for this purpose and write down the liquid and the volume. Carry out a gravimetric
test for each adjustment change. Follow the test procedures of EN ISO 8655-2 and 8655-6. A
SOP (Standard Operation Procedure) and further information on user and factory adjustment
settings can be found on the Research plus CD and on our website www.eppendorf.com.
5. Place the Research plus on a horizontal surface
(table). When completing the adjustment, look
absolutely vertically at the window and read the set
value via the backsight in the viewing window.
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