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Draw. 53. Statistics –display for series of measurement
1. mass on the pan
2. measurement number in measurement series
3. sum of all weighed components in measurement series
4. average mass of weighed components in the series
5. mass of the lightest component in measurement series
6. mass of the heaviest component in measurement series
7. difference between the lightest and the heaviest component in measurement
series
8. value of counted standard deviation
9. value of variation factor
10. measure unit [g]
11. work mode
17.9. Calibration of pipettes
Function of pipettes calibration refers to pipettes with stable and changeable capacity.
During the procedure precision and repeatability errors both are defined. For pipettes with
changeable capacity errors are defined for Max, Min and ½ Max.
All pipettes are checked according to precision and repeatability norm PN-EN ISO
8655:2003.
To ensure precise measurements keep following environmental conditions:
Temperature of environment, tip and liquid should be 20°C - 25°C stabilized
during weighing in range of ± 0.5.C
Moisture about 50 - 75%
Use distillated water only in a calibration process.
Содержание CX 165
Страница 1: ...Instruction number LMI 17 02 05 09 ENG C Analytical balances CX series...
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