Hach DR 900 User Manual page 8

Figure 5 Sample cell and instrument cap installation
User interface and navigation
Keypad description
Refer to Figure 6 for the keypad description and navigation information.
8 English
Figure 6 Keypad description
1 BACKLIGHT: set the display
illumination to on or off
1
2 SETTINGS: setup options
3 LEFT selection key (contextual):
access for options, cancels or exits
the current menu screen to the
previous one
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While in an edit mode, the key does not operate.
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When an UP or DOWN key is held, it scrolls fast. When a LEFT or RIGHT key
is pushed, it scrolls by page.
Display description
The reading screen shows the selected mode, unit, date and time,
operator ID and sample ID. Refer to
4 RIGHT selection key (contextual):
read sample, selects or confirms
options, opens sub-menus
5 Navigation keys UP, DOWN,
RIGHT, LEFT: scroll through
menus, enter numbers and letters
6 HOME/Options: go to the main
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reading screen , select program,
data management
Figure 7.
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