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3
Button, Display, Menu structure, Password protection
3.1 Operation elements
The instrument features easy operation by means of 5 buttons only and a plain text menu structure.
Button
Open a menu
Information
Configuration
Data logger
Calibration
On / Off
navigation in the
menu
Cursor left
Cursor up
Cursor down
Cursor right
selection /
ENTER
input / change
values
Cursor left
position value
+1
position value -1
Cursor right
confirm / save
value
By pressing the button
„ON/OFF“ the meter switches on. The meter switches off either automatically
after a preset time-out or by long (approximately 3 seconds) pressing the
„ON/OFF“ button.
Only for AM 40:
Also when the AM 40 is switched off, the connected O
2
-Sensor is supplied with the necessary polari-
sation voltage and so the system is directly after switching on always ready to measure.
Display
nLF
Configuration
Navigation <up>
Calibration
Navigation <right>
Data logger
Navigation <down>
Graphic display
On / Off
Enter
Information
Navigation <left>
Battery bar display
Main measurement value
Second measurement value
Date / Time
Fix temperature active
Temperature
Min / Max main measurement
value
Temperature compensation
(only LF 40)
