- 68 -
For the purpose of increasing the speed of statistical calculations it is possible to enable
the option of automatic erasing statistics. The option is set in parameter: P5 (RS 232) 12
<Erase statistics>.
0
- no (the statistics are not erased. Erasing is carried out by entering mode settings and
selecting option <ERASE>
1
– on header (the statistics is erased directly on pressing
key which precedes
printout of a header)
2
– on footer (the statistics is erased directly on pressing
key after printing a footer).
16.9. Calibration of pipettes
The mode enables calibrating pipettes of fixed and adjustable volume. On calibration
process, the software determines accuracy error and repeatability error.
In case of pipettes with adjustable volume the errors are determined for Max, Min and ½
Max volume.
All pipettes are checked for their conformity with accuracy and dosing repeatability
specified in the standard EN ISO 8655:2003.
For the purpose of ensuring the highest accuracy it is recommended to maintain the
following ambient conditions:
Ambient temperature for a pipette, tips and liquid should be stabilized within
20°C ÷ 25°C and the change ratio during calibration process should not exceed ±
0.5.°C
Relative humidity 50 ÷ 75%
Use distilled water during pipette calibration procedure.