BRAND Transferpette S-8 Instrucciones De Manejo página 53

5 Checking the volume
We recommend testing the instrument every 3 to 12 months depending
on the level of use. However, the testing cycle can be adapted to meet in-
dividual requirements. The complete testing procedure (SOP) can be
downloaded at www.brand.de.
You can download the detailed test instructions (SOP) at www.brand.de.
For GLP- and ISO-compliant evaluations and documentation, we recom-
mend the EASYCAL™ calibration software from BRAND. A demo version
can be downloaded from https://shop.brand.de/.
Gravimetric volume testing of the pipette is carried out according to the
following steps and complies with DIN EN ISO 8655:2022.
1. Setting the nominal volume
a. Set the maximum specified instrument volume (for procedure, see
Pipetting, p. 49 ).
2. Conditioning the pipette
a. Condition the pipette before testing by aspirating and dispensing the
test liquid (distilled water) with a pipette tip five times.
3. Performing the test
In accordance with DIN EN ISO 8655-2, a tip change is recommended af-
ter each individual measurement. An exception to this rule can be made,
according to DAkkS guideline DKD-R8-1.
a. Aspirate the test liquid and pipette into the weighing vessel.
Each individual channel must be inspected separately.
Transferpette® S-8/-12 997208
NOTICE
NOTICE
Operating manual
53