Hach-Lange Filter probe sc - Manual (Page 30)

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Maintenance and cleaning
6.1.2 Cleaning / replacing filter modules
Note:
The filter modules are very delicate.
Only clean the filter modules very carefully using the damp sponge
supplied.
Clean the filter modules
• Regularly (min. every 3 months) or
• When the pressure values drop below 0.45 bar.
DANGER
Potential danger in the event of contact with
chemical/biological materials. Handling chemical samples,
standards and reagents can be dangerous. Familiarize
yourself with the necessary safety procedures and the correct
handling of the chemicals before the work and read and follow
all relevant safety data sheets.
Normal operation of this instrument may involve the use of
hazardous chemicals or biologically harmful samples.
• Observe all cautionary information printed on the original
solution containers and safety data sheet prior to their use.
• Dispose of all consumed solutions in accordance with national
regulations and laws.
• Select the type of protective equipment suitable to the
concentration and quantity of the dangerous material at the
respective work place.
NEVER use chlorine bleach together with hydrochloric acid
(Risk of the formation of chlorine gas).
For cleaning use chlorine bleach (5 %–10 %) OR hydrochloric
acid (5 %).
Avoid the contact of cleaning agents and soaps with filter
modules as these may render the filter modules unusable.
1. On the SENSOR SETUP menu on the analysis instrument,
choose the TEST/MAINT, SERVICE MODE command and
accept.
2. Take the filtration probe sc out of the tank.
3. Clean the filter modules carefully using the damp sponge
supplied.
4. Carefully lever the filter modules out of the holder using a
screwdriver.
5. Clean or replace the filter modules.
6. Fit the new or cleaned filter modules in the bottom.