La Crosse Technology WS-2811U-IT - Manual (Page 14)

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1. Press the ▲UP ARROW key or ▼DOWN ARROW key to toggle
between the unit “inch” or “mm”
2. Press the SET key to confirm and to enter the RELATIVE AIR
PRESSURE UNIT SETTING
RELATIVE AIR PRESSURE UNIT SETTING
The relative air pressure can be set as inHg (inches of mercury) or hPa
(hectopascal). The default unit is inHg.
1. Press the ▲UP ARROW key or ▼DOWN ARROW key to toggle
between the unit “inHg" or “hPa”
2. Press the SET key to confirm and to enter the RELATIVE
PRESSURE REFERENCE VALUE SETTING.
RELATIVE PRESSURE REFERENCE VALUE SETTING
Note: For an exact measurement, it is necessary to adjust the
barometer to the local relative air pressure (related to elevation above
sea level). Ask for the current air pressure of the home area (local
weather service, the world wide web, optician, calibrated instruments in
public buildings, airport). The default reference pressure value is 29.91
inHg.
The relative air pressure can be manually set to another value within
the range of 27.17 to 31.90 inHg (920 to 1080 hPa) for a better reference.
1. The current relative pressure value will flash.
2. Press the ▲UP ARROW key or ▼DOWN ARROW key to increase or decrease the value.
Continually holding the key will allow the value to increase faster.
3. Press the SET key to confirm and enter the WEATHER TENDENCY SENSITIVITY SETTING.
WEATHER TENDENCY SENSITIVITY SETTING
The sensitivity of the weather forecast icons to changes in air pressure can be set manually.
Smaller values result in a more sensitive forecast. The switching sensitivity value can be set to
.06, .09, or .12 inHg (2, 3 or 4 hPa). Select lower values (.06) for high humidity areas like the
coastline. Select high numbers (.12) for dry areas like the desert. The default value is 0.09 inHg.
1. The sensitivity value will flash.
2. Press the ▲UP ARROW key or ▼DOWN ARROW key to select
the value.
3. Press the SET key to confirm and to enter the STORM WARNING
SENSITIVITY SETTING.