oneConcept 10029960 Mode D'emploi page 22

The display console displays two different pressures: absolute (measured) and relative (cor-
rected to sea-level).
To compare pressure conditions from one location to another, meteorologists correct pressure
to sea-level conditions. Because the air pressure decreases as you rise in altitude, the sea-level
corrected pressure (the pressure your location would be at if located at sea-level) is generally
higher than your measured pressure.
Thus, your absolute pressure may read 28.62 inHg (969 mb) at an altitude of 1000 feet (305
m), but the relative pressure is 30.00 inHg (1016 mb).
The standard sea-level pressure is 29.92 in Hg (1013 mb). This is the average sea-level pres-
sure around the world. Relative pressure measurements greater than 29.92 inHg (1013 mb)
are considered high pressure and relative pressure measurements less than 29.92 inHg are
considered low pressure.
To determine the relative pressure for your location, locate an official reporting station near
you (the internet is the best source for real time barometer conditions, such as Weather.com
or Wunderground.com), and set your weather station to match the official reporting station.
To change the relative pressure is flashing, press the + key or MIN/MAX key to increase or
decrease the relative pressure setting to match the official reporting station.
• While in Normal Mode press the ALARM key to enter the High Alarm Mode
• Press the ALARM key again to enter Low Alarm mode
Remark: after the initial pressing of ALARM key, the display will be refreshed to show
current high, low alarm value. Normal alarm value will be displayed only for those already
activated, all other not activated values will be displayed with "---"or"--"instead.
• Press the ALARM key again to return the Normal Mode
• In the High Alarm Mode press the SET key to select the following alarm modes:
• Time alarm (hour/minute)
• Indoor humidity high alarm
• Indoor temperature high alarm
• Outdoor humidity high alarm
• Outdoor temperature and dew point high alarm
• Pressure high alarm
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Setting Barometric Pressure
Alarm Modes