SenTix
®
HW-T 900(-P)
Technical data
9
ba77090e03
06/2021
Cleaning
Remove water-soluble contamination by rinsing with deionized water.
Remove other contamination as follows:
If you want to clean and rinse the ground junction, you can open it as follows:
completely unscrew the ground stopper (see figure on page 5).
After cleaning
Rinse the electrode with deionized water and condition it in reference
electrolyte solution for at least 1 hour. Then recalibrate the electrode.
6
Technical data
Contamination
Cleaning procedure
Fat and oil
Rinse with water containing household
washing-up liquid
Lime and hydroxide depos-
its
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.
Hydrofluoric acid, hot phosphoric acid and strong alkaline
solutions destroy the glass membrane.
Measurement
pH measuring range
0.000 ... 14.000
Allowed temperature range
0 ... 60 °C
