Hach Polymetron 9610sc SiO2 Installation Manual page 44

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electrocution exists.
This symbol indicates that the marked item can be hot and should not
be touched without care.
This symbol indicates that a risk of fire is present.
This symbol identifies the presence of a strong corrosive or other
hazardous substance and a risk of chemical harm. Only individuals
qualified and trained to work with chemicals should handle chemicals
or perform maintenance on chemical delivery systems associated
with the equipment.
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for instructions on how to return end-of-life equipment, producer-supplied
electrical accessories, and all auxiliary items for proper disposal.
Electrical equipment marked with this symbol may not be disposed of
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Maintenance
C A U T I O N
Multiple hazards. Only qualified personnel must conduct the tasks
described in this section of the document.
4 English
Maintenance schedule
Table 1 shows the recommended schedule of maintenance tasks.
Facility requirements and operating conditions may increase the
frequency of some tasks.
Table 1 Maintenance schedule
Task 30 days 60 days
Clean external surfaces
(Clean the instrument
on page 5).
Clean the sample cell (Clean
the sample cell
on page 6).
Replace the reagents
(Replace the reagent(s) or
standard(s) on page 7).
Replace the standards
(Replace the reagent(s) or
standard(s) on page 7).
Clean or replace the sample
(y-strainer) filter
Replace the fan filter
Replace the reagent air filter
Replace the tubing
Replace the stir bar
Replace the sample cell
1
With 10 minute cycles
2
With 15 minute cycles
3
With one calibration per week
90 days 365 days
X
X or as
needed
1 2
X X
3
X
X or as
needed
X or as
needed
X
X
X
X