Hach DR 3900, Basic User Manual

Page: 11 / 145

English 11
Power connections
1. Connect the power cable to the benchtop power supply.
2. Plug the benchtop power supply cable into the back of the
instrument ( Figure 2, page 9 ).
3. Insert the power cable plug into a mains socket (100–240 V~/
50–60 Hz).
Turn on the power button next to the display to turn on the power supply
(
Figure 1, page 8 ).
Startup
Switch on the instrument, startup process
1. Connect the power cable to the mains outlet.
2. Switch on the instrument by using the power button next to the
display.
3. The instrument starts automatically with a startup process lasting
approximately 45 seconds. The display shows the logo of the
manufacturer. At the end of the startup process, a startup melody is
heard.
Note: Wait approximately 20 seconds before switching on again so as
not to damage the electronics and mechanics of the instrument.
Language selection
The DR 3900 software includes several language options. The first time
the instrument is switched on, the language selection screen will be
shown automatically after the startup process.
1. Select the required language.
2. Press OK to confirm the language selection. The self-check will
then start automatically.
Change the language setting
The instrument functions in the selected language until the option is
changed.
1. Turn the instrument on.
2. During the startup process, touch any point on the screen and
maintain contact until the option for selecting a language is shown
(approximately 45 seconds).
3. Select the required language.
4. Press OK to confirm the language selection. The self-check will
then start automatically.
WA R N I N G
Electrical and fire hazards.
Only use the supplied benchtop power supply LZV844.