Hach-Lange DR1900 User Manual - Manual (Page 12)

Figure 7 Single screen display
1 Progress bar 8 Time and date
2 Program name and number 9 Read (contextual: OK, select, start, edit)
3 Reading value and unit 10 Zero (contextual: navigation keys UP, DOWN,
RIGHT and LEFT arrows)
4 Wavelength 11 Options (contextual: cancel, back, stop, exit, store,
select, deselect)
5 Battery status 12 Operator identification
6 AC power icon 13 Sample identification
7 Control bar for LCK vials 1 14 Control number for LCK methods
1 The control bar shows the relationship of the reading result with the reading range. The bar shows the reading
result independently of any dilution factor that was entered.
Navigation
The instrument contains menus to change various options. Use the navigation keys (UP, DOWN,
RIGHT and LEFT arrows) to highlight different options. Push the RIGHT selection key to select an
option. Enter an option value with the navigation keys. Push the navigation keys (UP, DOWN, RIGHT
and LEFT arrows) to enter or change a value. Push the RIGHT arrow to advance to the next space.
Push the RIGHT selection key under Done to accept the value. Push the LEFT selection key to exit
the current menu screen to the previous one.
Startup
Set the instrument to on or off
Push the POWER key to set the instrument to on. If the instrument does not come on, make sure
that the batteries, or the power module, are correctly installed or that the AC power supply is
correctly connected to an electrical outlet. Hold the POWER key for 1 second to shut down the
instrument.
Note: The Auto-Shutoff option is also used to turn off the instrument. Refer to Set the display and sound
on page 16.
Set the language
There are two options to set the language:
• Set the display language when the instrument is set to on for the first time.
10 English