Elitech FreezePoint 6000 Series, Руководство пользователя

Страница: 62 / 138

62
Section 6: Operation
15. Move elevator down.
Calibration starts automatically.
Calibration using the calibration standard is performed automatically. Pay
attention to the information displayed on the touchscreen.
Figure 63 Move elevator down
16. Move elevator up
17. Remove measurement vessel from thermistor probe.
18. Dispose of measurement vessel and sample according to local regulations.
19. Clean thermistor probe using a soft, dry, lint-free paper towel.
NOTE!
Risk of carryover!
• Failure to clean the thermistor probe immediately following measurement
can result in carryover and incorrect measurement results.
• Cleaning the probe with a lint free cloth wetted with DI water then wiping
and drying the probe, or the use of water blank, may help alleviate this
issue. This procedure is recommended to avoid risk of contamination with
salt at the thermistor.
Figure 64 Move elevator up
20. Repeat steps 13 through 18 until the number of measurements per
calibration point specified in the calibration defaults ( “5.3 Set calibration
defaults” on page 45) (max. 3) is reached.
For a 3-point calibration, repeat steps 10 through 19 using another
calibration standard.
Figure 65 Second calibration standard
Calibration can be completed after performing the number of runs specified in the
calibration defaults for the very last calibration point.
The system now shows the calibration results. The resulting osmolalities are
calculated as the mean across the individual measurements.
This is the result of a 3-point calibration.
Figure 66 Complete calibration