4. To remove inorganic mineral deposits, soak the probe sensor and platinum disc in a solution of
0.1 M hydrochloric acid or 0.1 M nitric acid for a maximum of 15 minutes.
5. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
6. If the platinum disc is dirty, polish the platinum disc with a soft cloth or cotton swab and detergent
solution.
7. Condition the probe in a representative sample before use.
8.2 Remove or install the shroud
Remove the shroud on the rugged probe during calibration and maintenance. Refer to Figure 3.
Keep the shroud installed on the rugged probe during sample measurements to prevent damage to
the sensor. Refer to Figure 4.
Figure 3 Remove the shroud
Figure 4 Install the shroud
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