StarLab ErgoOne E Instrucciones De Manejo página 21

6. Checking the volume
We recommend testing the device every 3 to 12 months, depending on the level of use. However,
the testing cycle can be adapted to meet individual requirements. Gravimetric volume testing of
the pipette is carried out according to the following steps and complies with DIN EN ISO 8655,
Part 6.
1. Setting the nominal volume
a. Set the maximum specified instrument volume (for procedure, see Pipetting).
2. Conditioning the pipette
b. Condition the pipette before testing by aspirating and dispensing the test liquid (distilled
water) with a pipette tip five times.
3. Performing the test
NOTICE!
In accordance with DIN EN ISO 8655-2, a tip change is recommended after 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.
NOTICE!
Each individual channel must be inspected separately.
b. Weigh the pipetted amount with an analysis scale. (refer to the operating manual of the
balance manufacturer.)
c. Calculate the pipetted volume. In doing so, take into account the temperature of the test
liquid.
d. A t least 10 pipetting series and weighings in 3 volume ranges (100 %, 50 %, 10 %) are
recommended.
k. Trigger blow-out: After the last dispensing step,
1x
press 'Enter' key.
 The display now once again shows 'blo' for
blow-out.
l. End dispensing: By pressing the pipetting key once,
the blow-out is triggered, and the residual liquid is
dispensed.
m. After dispensing the residual liquid (blow-out), the
display jumps back to the set mode (start position).
ErgoOne E Multi-Channel Pipettes · User Manual · 21
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