Precisa Series XT, Руководство по эксплуатации

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14 Further information
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14.2.4 Automatic calibration
For an automatic calibration with the built-in calibration weight “SET
CALIBRATION MODE AUTO” must be selected in the Configuration
menu (see Chapter 5.6 “Calibration functions”).
The balance now calibrates itself automatically every 24 hours and/or
after each temperature change of 3 degrees Celsius, depending on the
definition in the Configuration menu “SET CALIBRATION AUTOCAL”.
The time of the automatic calibration is as determined in the Configu-
ration menu under “SET CALIBRATION AUTOCAL. -TIME n h”.
(e.g. 6 h for 06.00 o'clock in the morning).
14.3 Notes on density determination
With the aid of the “Density” program the density of solids and liquids
can be determined (with accessories for the density determination,
see Chapter 13 “Accessories”).
For this, different types of weighing can be selected:
NOTE
For the automatic calibration by time and by time/temp. the date
and time of the balance must first be correctly set (see Chapter 5.9
“Date and time”).
The calibration can also be effected manually any time while auto-
calibration is activated.
The automatic calibration then takes place only if no weight is pla-
ced on the pan for at least five minutes.
It is recommended, that the time for the auto-calibration be set at
a time outside the normal business hours (for example, in the early
morning).