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3.2 Keyboard
The keys on the keyboard activate the following functions (cf. fig. 2):
POS Description
UP ARROW button used to adjust temperature values
(value increases) and to select menu options.
DOWN ARROW button used to adjust temperature values
(value decreases) and to select menu options.
ENTER button used to accept chosen options.
ESC/MENU button used to escape or to activate the menu
system (hold button down for min. 2 seconds).
AUTO STEP button used to activate AUTO STEP.
The function is used to switch between a series of set-
temperatures automatically.
SWITCH TEST button used to activate SWITCH TEST.
The function automatically detects the opening/closing
temperatures for thermostats.
3.3 Display
The various segments of the display are used to indicate the following
(cf. fig. 2):
POS Description
Used to display Read-temperature and parameters in the
menu system.
Celsius temperature unit for top display.
Fahrenheit temperature unit for top display.
Celsius temperature unit for bottom display.
Fahrenheit temperature unit for bottom display.
Minute time unit for bottom display.
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