ELPRO LIBERO Tx, Руководство по эксплуатации

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74 - EN liberoCONFIG
LI6002Eg
CALIBRATION
6
6.3 Methods for Temperature Calibration
• 0°C Ice-water
Calibration, which uses the triple point of ice-water (0°C) as reference temperature. You
can expect an accuracy of approx. 0°C ±0.1K.
• Calibration bath
If a calibration bath is used (-35°C .. 70°C), the reference sensor should be fastened to
the data logger under calibration. This ensures, there is no temperature difference
between the data logger and reference sensor. The watertight packed data logger
should be immersed completely and the bath should be stable. Also make sure that the
data loggers do reach the reference temperature. Repeated measuring and averaging
can improve the measured values.
6.3.1 Ice Water Calibration Procedure
1. Fill up an insulated container, e.g. a camping coolbox with ice cubes. Use ice from an
ice machine (-1°C) and not from the freezer (-20°C). Fill the coolbox with cold water up
to the filling height of the ice. In order to mix it well, stir the contents.
2. The "Logging Interval" is factory set to 1 minute, the "Start Delay" to 50 minutes and the
"Measuring Time" to 10 minutes.
3. Wrap up the data logger in watertight packaging material, e.g. latex glove.
4. Submerge the data logger completely in the ice water.
5. Carry out the calibration.
6. Evaluate the calibration.

6.1 View/Print Calibration
The calibration process lasts as long as the total time required for "Start Delay" +
"Measuring Time" for each calibration point.