Displaying Relative/Absolute Inhg/Hpa - La Crosse Technology WS-7059U4 Instruction Manual

for areas with significant air pressure
changes.
5. Press the MODE/SET button to confirm and
advance to set the Relative or Absolute
display setting.
X. DISPLAYING RELATIVE hPa/inHg OR
ABSOLUTE hPa/inHg
Note: Air pressure can be displayed in four different
measures: Relative hPa, Absolute hPa, Relative inHg, and
Absolute inHg. The Absolute setting gives a true and
real-time air pressure reading (at the users location) that
cannot be manually calibrated. However, the Relative air
pressure setting must be manually programmed to suit the
users needs. Relative air pressure is measured in relation
to sea level and is the standard meteorological form of
measure. You can retrieve the Relative air pressure from
your local weather service. Absolute air pressure
decreases by about .01 inHg for every 10 feet in altitude.
In higher altitudes (above 6,500 feet), this effect is less
noticeable. The WS-7059U will measure absolute
pressure reliably up to 7,500 feet. There is no limit for
relative air pressure since it is set by the user.
1. Press and hold the MODE/SET button for 5
seconds, or until "Lcd 5" flashes in the
TIME LCD.
2. Press the MODE/SET button 11 additional
times to reach the various Relative and
Absolute display options.
3. The default setting is "rel hPa" will flash in
the PRESSURE LCD.
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