Install The Batteries; Install The Sample Cell And Cell Adapter - Hach DR 900 Manual Del Usuario

3.1 Install the batteries

W A R N I N G
Explosion hazard. Incorrect battery installation can cause
the release of explosive gases. Be sure that the batteries
are of the same approved chemical type and are inserted in
the correct orientation. Do not mix new and used batteries.
W A R N I N G
Fire hazard. Battery substitution is not permitted. Use only
alkaline batteries.
N O T I C E
Make sure to tighten the screws to 1–1.4 N·m (9–12 in.·lb) for a correct
seal fit and to maintain the enclosure environmental rating.
The instrument is powered with four AA alkaline batteries. Make sure
that the batteries are installed in the correct orientation. Refer to
for the battery installation.
Figure 3 Battery installation
Figure 3

3.2 Install the sample cell and cell adapter

The instrument has one cell compartment which can use one adapter for
different sample cell types. Make sure to install the sample cell in the
correct orientation and in a consistent orientation so that the results are
more repeatable and precise. Refer to
cap before the instrument zero is set or a measurement is made to
prevent light interferences. Refer to
Figure 4. Close the instrument
Figure 5.
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