Hach DR 2800, User Manual, Page: 88 / 96

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Pour-Thru Cell
A.3 Assembling the Pour-Thru Module
Installing the Pour-Thru Cell
1. Open the cell compartment.
2. Insert the Pour-Thru Cell Adapter B in Cell Compartment #2 so
that the light path arrow on the adapter points left (see
Figure 5
on page 14 ).
Note: Do not use Adapter C. It places the cell too low and does not
prevent rotation of the Pour-Thru Cell.
3. Clean the Pour-Thru Cell with a lint-free cloth and insert it fully
in the cell holder so that the cell is oriented for the necessary
pathlength and cannot rotate in the adapter.
Note: For the 1-inch orientation, the inlet and outlet fittings are parallel to
the light path. For the 1-cm orientation, the inlet and outlet fittings are
perpendicular to the light path.
4. Connect the cell inflow and outflow tubes to the Pour-Thru Cell.
Note: Make sure there are no kinks in tubes to impair functionality and
prevent proper bubble removal.
A.3.1 Installing the Sample Inflow and Outflow
Refer to following instructions to install the sample inflow and
outflow.
1. Connect the Inflow Tube to the fitting at the bottom of the glass
funnel and clamp the glass funnel to the stand.
2. Connect the Outflow Tube to the top fitting of the stand pipe.
3. Connect the Drain Tube (black rubber tube) to the bottom fitting
of the stand tube and clamp the stand pipe to the stand.
4. Connect the free end of the rubber tube to an appropriate
waste vessel.
Note: The drain tube must flow freely to the drain or waste vessel. Shorten
tubes to minimize flow restrictions.
The funnel height and orientation may be adjusted. The funnel
height determines the speed of sample flow through the cell. The
higher the funnel, the faster the flow. To minimize air bubbles,
adjust the funnel so that it drains completely with the final level of
liquid in the tube about 5 cm (2 inches) below the tip of the funnel.
Take instrument readings after the solution has stopped flowing
through the cell. Always rinse the cell thoroughly with deionized
water after each series of tests, or as often as specified in
the procedure.
Refer to the instruction sheet included with the Pour-Thru Cell for
more information.