Hach LDO10101, User Manual, Page: 10 / 16

1. Remove the shroud. Refer to Remove or install the shroud on page 9.
2. If water is seen between the LDO sensor cap and lens:
a. Remove the LDO sensor cap.
b. Blot dry the LDO sensor cap and lens with a soft dry cloth. Refer to Figure 2 .
If the probe lens is dirty, rinse the lens with dilute isopropyl alcohol (10% or less) or deionized
water. Blot dry with a non-abrasive cloth. Do not rub the lens or use abrasive cleaners.
c. Install the LDO sensor cap and tighten by hand. Do not tighten more than is necessary for a
good seal.
3. Put the probe in a neutral cleaning solution and stir the solution. Do not rub or remove the black
layer on the LDO sensor cap.
Note: If disinfection is necessary, put the probe in a dilute alcohol solution for a maximum of 2 minutes and
rinse immediately with deionized water. Do not use an alcohol solution more than two times a day.
4. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
5. Install the shroud. Refer to Remove or install the shroud on page 9.
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