wtw inoLab Multi 9620 IDS Operating Manual page 41

®
inoLab Multi 9620 IDS
Carrying out a QSC
initial calibration
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To meet the high requirements of a QSC initial calibration, the QSC initial cali-
bration should optimally be carried out with the initial commissioning of the
sensor.
Carry out the normal calibrations for your special measuring range with your
usual standard solutions as previously done.
As soon as the QSC function was enabled for an IDS sensor, it is
not possible to return to the sensor evaluation with the sensor
symbol for this sensor.
1. Open the menu for measurement settings with <ENTER>.
2. In the QSC menu, select First calibration with <><>.
The calibration display appears. AutoCal QSC-Kit is displayed as the
buffer.
Exclusively use the QSC-Kit for the QSC calibration. If you use other
buffers, you will have no valid QSC calibration.
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3. Calibration with the buffers of the QSC-Kit is done like a normal three-
point calibration.
Follow the user guide.
Carry out the QSC initial calibration very carefully. It determines the
reference value for the sensor. This reference value cannot be
overwritten or reset.
As soon as the QSC function was enabled, it is not possible to
return to the sensor evaluation with the sensor symbol.
4. As soon as the three-point calibration has been successfully carried out
you can decide whether to accept or discard the calibration as the QSC
initial calibration.
The QSC initial calibration is completed. The sensor is calibrated. If you want
to calibrate with special buffers for your measurements, you can subsequently
carry out a normal calibration with your buffers. The reference values deter-
mined with the QSC calibration are also used for the evaluation of normal cali-
pH value
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