Keypad; Display; C.1.2 Keypad - TESTO 340 Instruction Manual

C.1.2 Keypad

Key Functions
Switch measuring instrument on/off
Function key (orange, 3x), relevant function is shown on the display
Scroll up, increase value
Scroll down, reduce value
Back, cancel function
Open Main menu: press briefly (changed settigs are stored, measurement values are carried over into the menu
Flue gas); open Measurements menu: press and hold down for 2s (changed settigs are stored, measurement
values are carried over into the menu Flue gas)
Open Inst' diagnosis menu
Change display light: display light stays on permanently or display light is switched on for 10s every time the key
is pressed.
C.1.3 Display
Depending on the menu that is active, the display shows a variety of elements.
Header (active in all views)
Symbol Characteristic
Mains operation
Rech. battery operation, capacity: 76-100%
Rech. battery operation, capacity: 51-75%
Function select view
Warning symbol (only if there is a device error;
device errors are displayed in the
Active folder and location.
Power supply symbol:
Symbol
Active menu, activated fuel
Function selection field:
The selected function has a grey background.
Unavailable functions are written in grey type
Scroll bar
Function keys for entering commands
C. Product description 11
Inst' diagnosis
Characteristic
Rech. battery operation, capacity: 26-50%
Rech. battery operation, capacity: 6-25%
Rech. battery operation, capacity: 0-5%
menu).