Hach 5500sc Installation Manual page 10

Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Do not connect the drain lines to other lines because backpressure or damage to the analyzer can occur. Make
sure that the drain lines are open to air.
To prevent backpressure and damage to the analyzer, make sure that the analyzer is higher than the facility
drain(s) used and that the drain line has a constant downward slope.
Use the supplied tubing (6 mm), shut-off valve, Y-strainer with filter and pressure regulator to plumb
the drain and the sample to the analyzer. Refer to
goes into the plumbing access ports must be 6 mm. Tubing of 1/4 in. can be used for the sample line
up to the valve or to the y-strainer, but not into the plumbing access ports of the analyzer. For correct
drainage, install the drain lines at least with a 1-inch decrease in height per 1 foot of tubing length.
Figure 5 Plumb the sample
1 Sample in (single-stream)
2 Rear side of the analyzer
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Figure 5
3 Shut-off valve
4 Y-strainer with filter
and Figure 6. The sample line tubing that
5 Adjustable pressure regulator