16 Calibration by the user
65
11. Please enter the measured values of the samples determined
using the reference device in column target values of the
table. The device must show these values upon calibration.
12. Use the STS sensor to consecutively measure the samples
and enter the actual values displayed by the sensor in the
table. Avoid erroneous measurements caused by diversion by
flushing and thoroughly drying the sensor between the
respective measurements.
13. Transfer the values from the table into the sensor as follows
(see chapter 6.1):
- define the number of calibration points c def
- enter the known target values of the calibration solutions cj1-cj4
- enter the determined actual values of the calibration solutions cal1-
cal4
14. Confirm your entries by selecting SAVE = Yes (chapter 6.1).
You can check the calibration by re-submerging the sensor into
the samples. If the sensor shows the target values, the calibration
was successful.
Please make sure that the used samples cover your required
measuring range as far as possible.
16.4 Resetting to the factory calibration
Incorrect settings in the parameters may result in the output of
incorrect measured values and switching points. This may result in
accidental process influence.
Please make sure that only authorised and trained personnel
perform changes to the calibration.
The sensor is parameterised using the function keys on
the display. The operating steps can be found in chapter
6.1.
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