La Crosse Technology WS 550 US - Manual (Page 23)

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3.3.5. "TIMEZONE" menu, Set time zone
The time zone details are required for calculating the sunrise and sunset times. Enter
the current difference to UTC (Coordinated Universal Time).
The Appendix C countains a table with the time zone difference from UTC for the
US.
- Select the "TIMEZONE" menu:
NEXT TIMEZONE ENTER
- Touch the "ENTER" field, the display is:
TIMEZONE + - 05 -
- Touch the "+" or "-" areas to set the longitude.
- Wait a few seconds; you will then see the corrected day for sunrise and sunset
in the display.
3.3.6. "LIGHTING" menu, time setting for the background lighting and
regulating the brightness of the lightening
In this menu you can set the switching time for the background lighting that auto-
matically switches on when you touch the screen and switches off after a set pe-
riod. This can range from "OFF" (lighting never switches on), to periods between 5
seconds and 10 minutes till permanent lighting (ON). Further, you can also set the
times when the lighting should permanently be on.
You can also activate/deactivate an automatic adjustment to the surrounding bright-
ness so that the display is optimally legible under all surrounding conditions.
The background lighting can only be used if you are connected to the AC adapter!
- Select the "LIGHTING" menu:
NEXT LIGHTING ENTER
- Touch the "ENTER" field, the display is:
LIGHTING + 10 SEC -
- Touch the "+" or "-" areas to set the switch-on time.
- Touch the "LIGHTING" field, the display is: