JUMO Logoscreen Operating Instructions Manual page 46

3 Operation and visualization
Fine calibration
H
Date and
time
H
46
Using fine calibration, the analog measurements can be calibrated (adjusted).
The adjustment is carried out using a linear equation. After selecting the
channel, first set the parameter Fine calibration
then enter the parameters for fine calibration.
Actual start value
Target start value
Actual end value
Target end value
Systematic errors, such as those caused by an unsuitable probe mounting, for
example, can be compensated through fine calibration.
Example:
A probe provides measurements that cover a temperature range from
200 to 300 °C. It has been installed in a tunnel oven so unfavorably as to
always indicate 10°C less than the temperature of the charge. The incorrect
measurement can be corrected through fine calibration.
Actual start value
Target start value
Actual end value
Target end value
Performing a fine calibration is handled in the same way as altering
the configuration. After fine calibration, the recorder can be reset.
Here you can set the internal clock of the recorder.
Setting the date and time is treated in the same way as altering the
configuration. After setting the date or the time, the recorder is
reset.
Start value of the actual line
Start value of the target line
End value of actual line
End value of target line
: 200°C
: 210°C
: 300°C
: 310°C
Calibration status = ON,