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96
Product Calibration
Calibration by sampling – for product calibration, the uncompensated
conductivity (μS/cm, mS/cm, S/m) is used.
During product calibration the sensor remains in the process.
The measurement process is only interrupted briefly.
Procedure:
1) The sample is measured in the lab or directly on the site using a por-
table meter. To ensure an exact calibration, the sample temperature
should correspond to the measured process temperature.
During sampling the device saves the currently measured value
and then returns to measuring mode. Then, the “calibration“ mode
indicator blinks.
2) In the second step you enter the measured sample value in the
device. From the difference between the stored measured value and
entered sample value, the device calculates the new cell constant.
If the sample is invalid, you can take over the value stored during
sampling. In that case the old calibration values are stored.
Afterwards, you can start a new product calibration.
Display
Action
Remark
Select Calibration.
Press
enter
to proceed.
Select P_CAL
calibration method.
Press
enter
to proceed.
Ready for calibration.
Hourglass blinks.
Display (3 sec)
Now the device is in
HOLD mode.
Take sample and save
value.
Press
enter
to proceed.
Now the sample can
be measured in the
lab.
Summary of Contents for Stratos Pro A201COND
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Page 143: ...143 Index ...