Hach DR 1900, Basic User Manual

Page: 7 / 112

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 type substitution is not permitted.
N O T I C E
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 for the battery installation.
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 Figure 4 for the adapter installation.
Table 1 Adapter descriptions
Adapter Description
No adapter 1 inch square and flow-thru cell
Adapter A 13 mm round and 10 mm square
Adapter B 1 inch round double path
Adapter C 1 inch round and 1cm/10 mL cell
Adapter D 16 mm round
English 7