Sunroad FR900 - Barometer Functionality; Compass Mode Operations; Ensuring Compass Accuracy

B
7.5 Barometer
Under time mode, press [B] to barometer mode.
LCD display,
- Upper: Sea level air pressure
- Middle: 24 hours air pressure trend chart
- Below: Press [B] to switch among current air
pressure, time and temperature.
Air pressure record
Unit will record air pressure every half hour
and display as an air pressure trend chart.
Under barometer
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Under time mode, press [C] to enter compass mode.
A. When should we calibrate compass?
Using first time or after replacing battery, press to enter
compass mode. It requests calibrate compass first.
To let compass working more accuracy, we should calibrate
compass regularly. When compass decline degree too much, we
should calibrate compass
mode, press [C] to check
air pressure record. Press [A] or [B] to browse
air pressure record in turn.
. Compass
8.1 Getting accuracy data
Under compass mode, please ensure to keep horizontal to get
accuracy data. If there is no operation in 30 seconds, LCD will show
“start compass” to save battery. Press [C] restart compass.
8.1.1 Compass calibration
[C]
C
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