Siemens ULTRAMAT 23, Manual, Page: 122 / 244

Functions
8.2 Calibration
ULTRAMAT 23
122
Manual, 3/2016, A5E37100388-003
8.2.7 Calibration: AUTOCAL/drift values
It is possible to change the following parameters in this dialog:
•
Thermo-AUTOCAL
– OFF: An automatic AUTOCAL only takes place when
the cycle time has expired (see there).
– ON: An automatic AUTOCAL only takes place when the
cycle time has expired. In addition, an automatic
AUTOCAL is triggered if the operating temperature has
changed by more than 8 °C compared to that measured
during the last AUTOCAL. This AUTOCAL it started with
a delay of 280 minutes.
•
Drift values
•
Cycle time
•
Purge time
These three parameters are described sepa-
rately.
8.2.7.1 Calibration: AUTOCAL/drift values: Drift values
This function is used to display the drift values of the zero point and sensitivity, and to
change them if necessary. The drift values are the total of the deviations in measured values
for the zero and sensitivity calibrations. This parameter is specific to the component.
This menu display appears following selection of the drift val-
ues and allows selection of the desired component.
You can switch between the individual components by press-
ing an arrow key. You can select the displayed component
using the <ENTER> key.
You can now view the drift values and reset them if necessary.
To do this, position the cursor on the 4th line (reset) of the
display and press the <ENTER> key.