8
│ 3 Operation
detailed information on how to select or switch applications in
section 3.1.4.
Exiting menus/menu items
There are generally two ways to exit open menus/menu items
and return to the next level up:
●
Press
Esc
●
Select
Exit
from the menu
3.1.3
Switching the device on
Note:
Always switch the device on with fresh air.
Each switch-on process is linked to activation of the buzzer, sig-
nal light and display. This allows the user to check the following
device functions:
Buzzer:
Is the audible signal working?
Signal light: Is the visual signal working?
Display:
Can incorrect pixels be seen in the inverse display?
●
Press the ON/OFF key. The device switches on.
The start screen appears on the display.
Display:
– Device type: Multitec 540
– User:
Frank Smith
City Council
Leakage Delivery
– Firmware version: V1.400
– Date and time
– Battery capacity
Fig. 3: Start screen
