RHOTHETA User Manual RT-800
Page 157 of 192
o
The hotkey “Off” (s. Fig. 168, position 2) is only available if “Legends” is selected.
Pressing this hotkey deactivates the illumination of the legends.
o
Use the hotkey “Min.” (s. Fig. 168, position 3), “Medium” (s. Fig. 168, position 4) and
“Max.” (s. Fig. 168, position 5) in order to set the appropriate luminosity quickly.
o
Use “Left” and “Right” arrow buttons of the DCU keypad to increase or decrease
brightness of the selected items in one-percent steps.
o
Use the hotkey “Auto/Manual” (s. Fig. 168, position 6) in order to set the automatic or
manual brightness adjustment mode. The currently selected adjustment mode is
indicated abov this hotkey.
In the “Auto” mode the luminosity of items will be adjusted automatically based on the
light-sensor value.
Note
It is possible to change the brightness settings also in the “Auto” mode. Please, pay
attention that this will not simply change the current brightness!
If you change the brightness settings in the “Auto” mode, the new values will be
coupled to the light-sensor’s middle position and taken as the starting point for
automatic brightness adjustment. Since the brightness is regulated from light-sensor’s
zero-point (“Middle”) and has maximum 50 percent-points in both directions, the
regulation will not behave equably, when the zero-point was displaced from the
“Middle” position.
This means that if e.g., the “Display” brightness was set to “+70%” in the “Auto” mode,
it will never reach the “0%” at the “Minimum” point of the light sensor (because the
“Middle” of the light sensor is now coupled to the 70% brightness value). The darkest
value will then be “20%” (and the brightest will still be 100% as the level 120% does not
exist).
o
Confirm the changed value with “OK” or press “ESC” to leave the dialog without saving
the changes.
Note
Always finish the dimming (day/night mode) adjustment with pressing the “OK” button.
Otherwise, the changes will not be saved.