Elitech FreezePoint 6000 Series, Руководство пользователя

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Section 6: Operation
Perform zero point calibration
5. Move elevator down.
Zero point calibration starts and is performed automatically.
Pay attention to the information displayed on the touchscreen.
Figure 57 Move elevator down
6. Move elevator up.
7. Remove measurement vessel from thermistor probe.
Dispose of measurement vessel and sample according to local regulations.
Take care when removing the measurement vessel to clear the sample
probe to avoid damaging it.
8. Clean thermistor probe using a soft, dry, lint free paper towel.
Figure 58 Move elevator up
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.
9. Repeat steps 3 through 8 until the number of measurements per calibration
point specified in the calibration defaults ( “Set up calibration method” on
page 46) (max. 3) is reached.
10. Following successful zero point calibration, tap 1st Standard to start
calibration using the first calibration standard.
Figure 59 Calibrate device using calibration standard
Successful calibration means that it was possible to measure the sample without errors.
This is not a plausibility check, which is not performed until the entire calibration sequence is
completed in measurement mode ( “Check repeatability of measurements” on page 98).