User guide

Maintenance and cleaning SenTix

ba75843e01 08/2009

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)

Proteins Immerse in pepsin cleaning solution PEP/pH

for approx. 1 hour.

Note:

Make sure the level of the reference

electrolyte is above that of the cleaning solu-

tion.