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BD / BF / ED / FD / FED (E3.1) 03/2019 page 22/106
6. Overview and general settings on the R4 controller
6.1 Controller overview
Buttons on the controller
The arrow buttons serve to navigate and to enter the values
The OK button serves to select the parameters and to confirm the entered values
The Back button serves to reach the preceding level
If the Standby button is pressed down for approx. 3 seconds, the display changes to
standby mode. To activate the display, press down the standby button again for approx.
3 seconds
Display in standby mode with standby symbol
Status symbols on the controller display
Heating
active
Timer
operation
Overtemperature
alarm of the safety
controller
Standby
mode
6.2 Normal display
Normal display with chambers without fan (BD, ED)
or with fixed fan speed (FD)
Normal display with chambers with adjustable fan speed (BF, FED)
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