Kestrel 4000 Instruction Manual page 11

Starting with the known barometric pressure for your location: You can obtain your
current barometric pressure by checking an internet weather site for a nearby location,
or contacting a local airport. Set this value as your reference pressure on the ALTITUDE
screen to determine your correct altitude: Press the
setting mode. Press the
decrease the reference pressure. You will notice that the altitude will change with changes in the reference
pressure. Press the
allow the altitude reading to stabilize. (Note: very small changes in pressure generate noticeable changes
in altitude. In order to provide meaningful readings for activities where altitude changes quickly, the Kestrel
Meter features rapid altitude response. This is why the altitude readings tend to fluctuate by a few feet.)
After obtaining a current altitude from the ALTITUDE screen, move to the BARO screen and enter this value
as your reference altitude by following the same procedure. Both readings will now be accurate.
Starting with a known altitude for your location: You can obtain your altitude from a
topographical map or local landmark. Google Earth is an excellent free program that
provides the exact altitude for any given address: www.earth.google.com/. Set this
value as your reference altitude on the BARO screen to determine your barometric
pressure. Press the
to increase the reference altitude or the
the barometric pressure will change with changes in the reference altitude. Press the
adjustment mode. Again, allow the Kestrel Meter to stabilize, then enter the value from the BARO screen
as your reference pressure on the ALTITUDE screen by following the same procedure. Both readings are
now accurate.
When reviewing stored data, remember that changes in pressure AND changes in location/altitude will
affect the stored values. When tracking pressure changes relative to weather, set the reference altitude on
the BARO screen and keep the Kestrel Meter in one location. Your graph history will now show trends in
button to exit the adjustment mode. Set your Kestrel Meter down on a table and
button to enter the reference setting mode. Press the
button to increase the reference pressure or the
button to decrease the reference altitude. You will notice that
button to enter the reference
button to exit the
11
button to
button