Hach DR 1900 Manuel D'utilisation De Base page 7

Install the batteries
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.
Fire hazard. Battery type substitution is not permitted.
Make sure to tighten the screws carefully for a correct seal fit. Do not over-tighten.
Use four AA alkaline or four rechargeable NiMH batteries to energize the instrument. Make sure that
the batteries are installed in the correct orientation. Refer to
Figure 3 Battery installation
Install the sample cell adapters
The instrument has one cell compartment which uses adapters for different sample cell types. Refer
to Table 1. The arrow on top of the adapter and the arrow on the cell compartment show the direction
of the cell orientation and the light beam path. Refer to
W A R N I N G
W A R N I N G
N O T I C E
Figure 3
Figure 4 for the adapter installation.
for the battery installation.
English 7