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Ion selective measurement (C3230 only)
Calibration and measurement
Select the desired mode by pressing . The display will immediately show the measured value
1.
according to the previous calibration. Should you want to recalibrate, press CAL.
2.
The instrument permits to choose between the possible standards (1, 10, 100 ng/l, 1, 10, 100 µg/l, 1, 10,
100 mg/l, 1, 10, 100 g/l). Select the proper values and press OK. The unused standards should be
switched off.
3.
Select [CALIBRATE] and press OK.
4.
After rinsing the electrodes with distilled water, immerse them in the first standard solution. Select the
first calibration value and press OK when readings are stable. Go on in the same way with the next
standard solutions.
5.
Decide whether a blank correction should be carried out or not. Follow the instructions on the screen.
After rinsing the electrodes with distilled water, immerse them in a blank solution. When readings are
stable press OK.
6.
Rinse the electrodes with distilled water, immerse them in the samples, and read the concentration on
the display.
5.
Maintenance: we refer to the manual supplied with the ion specific electrodes.
Good Laboratory Practice
Select the desired range by pressing and then press CAL.
1.
2.
Select [GLP] and press OK.
Select [SHOW REPORT] and press OK. Browse with to show a complete calibration report.
3.
4.
Select [SEND REPORT] and press OK to send the report to a computer.
Calibration reminder
Select the desired range by pressing and then press CAL.
1.
2.
Select [GLP] and press OK.
3.
Select [INTERVAL] and press OK.
4.
Select the desired time interval between each automatic warning for a new calibration of the electrodes
and press OK.
6
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