YSI MultiLab IDS 4120 User Manual
Page 8
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Maintenance and cleaning
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Cleaning
Remove water-soluble contamination by rinsing with deionized water. Re-
move other contamination as follows:
Note
Hydrofluoric acid, hot phosphoric acid and strong alkaline solutions destroy
the glass membrane.
After cleaning
Rinse the electrode with deionized water and condition it in reference
electrolyte solution for at least 1 hour. Then recalibrate the electrode.
Contamination
Cleaning procedure
Fat and oil
Rinse with water containing household wash-
ing-up liquid
Lime and hydroxide deposits Rinse with citric acid (10 % by weight)
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