Recording
- 93 -
This can be used as a rough indication to understand the
trend of weather change during mountain climbing or
camping, etc. With the most current atmospheric pressure as
a reference, it is displayed on the graph within the range of
j
10 hPa
¢
to
_
10 hPa
¢
. (Atmospheric pressure out of range
cannot be displayed in details)
A
Current atmospheric pressure information
B
Atmospheric pressure information in 90 minute intervals
C
Atmospheric pressure information 24 hours ago
¢
hPa (hectopascal) is a unit used to represent atmospheric
pressure.
•
Atmospheric pressure changes in accordance with the
movement of the atmosphere.
–
When the atmospheric pressure rises: Weather tends to
recover
–
When the atmospheric pressure drops: Weather tends to worsen
•
If you leave the [GPS Setting] set to [ON], the atmospheric pressure will be measured even
when the power is off.
∫
About the measured altitude and atmospheric pressure
•
Altitude value may show errors depending on the change in atmospheric pressure compared to
areas such as locations with altimeter reference signs. Adjust frequently with [Altimeter Adjust].
•
Altitude announced onboard an airplane is measured using the atmospheric pressure
surrounding the airplane. It does not match the altitude actually measured inside the airplane.
•
Even if the unit is fixed at a constant altitude, the measured altitude may fluctuate due to the
effects of change in atmospheric pressure.
•
Altitude and atmospheric pressure may not be measured
accurately in the following cases:
–
When there is a significant change in weather conditions
–
When there is a movement with a rapid change in altitude
–
When this unit is wet (after using underwater, etc.)
¢
2
–
When pressure is applied to the front or rear of this unit
¢
1
–
When closing the side door
¢
2
¢
1 Hold this unit as shown in the figure when measuring.
¢
2 It will adapt to the ambient atmospheric pressure within a few minutes, and display correct
measurement values.
Barometer
1013hPa
1013hPa
1013hPa
＋
10 hPa
−
10 hPa