Ion selective measurement
Calibration and measurement (C3x3x/C304x/C306x only)
1. Select the desired mode by pressing
é
ê
. The display will immediately show
the measured value 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.
• Maintenance: we refer to the manual supplied with the ion specific electrodes.
Good Laboratory Practice
1. Select the desired range by pressing
é
ê
and then press CAL.
2. Select [GLP] and press OK.
3. Select [SHOW REPORT] and press OK. Browse with
é
ê
to show a complete
calibration report.
4. Select [SEND REPORT] and press OK to send the report to a computer.
Calibration reminder
1. Select the desired range by pressing
é
ê
and then press CAL.
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.
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