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The rainfall unit can be set to read in inch or mm. The default unit is inch.
1. Press the ▲/DATE button or ▼/RAIN button to toggle between the unit “inch” or “mm”
2. Press the SET button to confirm and to enter the RELATIVE AIR PRESSURE UNIT.
RELATIVE AIR PRESSURE UNIT
The relative air pressure can be set to read in inHg (inches of mercury) or hPa
(hectopascal). The default unit is inHg.
1. Press the ▲/DATE button or ▼/RAIN button to toggle between the unit
“inHg" or “hPa”
2. Press the SET button to confirm and to enter the RELATIVE
PRESSURE REFERENCE VALUE SET.
RELATIVE PRESSURE REFERENCE VALUE
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, 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 ▲/DATE button or ▼/RAIN button to increase or decrease the value. Continually
holding the button will allow the value to increase faster.
3. Press the SET button to confirm and enter the WEATHER TENDENCY SENSITIVITY.
WEATHER TENDENCY SENSITIVITY
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 ▲/DATE or ▼/RAIN to select the value.
3. Press the SET button to confirm and to enter the STORM WARNING
SENSITIVITY.
STORM WARNING SENSITIVITY
A storm warning is displayed by flashing of the down weather tendency arrow
when the air pressure decreases a specified amount over six hours. The
sensitivity value for the storm warning display can be set between .09 inHg to
.27 inHg (3hPa to 9hPa). The default value is 0.15 inHg.
1. The sensitivity value will flash.
2. Press the ▲/DATE button or ▼/RAIN button to select the value.
3. Press the SET button to confirm and to enter the STORM ALARM ON/OFF SET.
STORM ALARM ON/ OFF SET