Install the batteries, Install the sample cell adapters – Hach-Lange DR1900 Basic User Manual User Manual

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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.

Note: Rechargeable batteries will only be recharged with the USB/power module. Refer to the module
documentation for further information.

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