Universal explain
Note:you don’t need to print the below 2 items
14
In compass mode, keep pressing B for 2s to enter CAL, press B again to enter DEC
(press E to increase 1,C decease 1)
The maximum correction angle range is ±90°（“W” “E”±90°）
Press B for 2s to confirm the corrected value, and return to normal measurement
mode.
1、The curve display in atmospheric pressure mode, is not the actual one. It detects the
altitude every 15 min, if the altitude change is not more than 8 meters, then it will own
to the sea level change, not actual altitude. In this case, it will work out the pressure
value according to the former 15 min altitude. If it is more than 8 meter,it will figure
out you are climbing,the pressure will be kept the same.
2、At the first 5 minute after entering altitude or pressure measurement mode or exiting
the setting mode, it will measure every 2 second; after 5 min later, every 2 min
measred, and other mode will be 15 min.
3、When set the magnetic declination,if + is set, the actual declination plus adjusted one
displayed,if it is -,then the actual declination minus adjusted one displayed.
4、Estimate the weather every hour (estimate the weather according to the air pressure
diversification in the former 4 hours). If air pressure value goes up gradually, it
indicates that the weather will turn into better. If the air pressure value goes down
gradually, it indicates that the weather will turn into bad. There are 4 kinds of weather
status (from good to bad): Sunshine, Cloudy, Overcast sky, Rainy.
Method:
a) Detect the pressure every 59min 59s
b) The pressure from former 1 hour minus later 1 hour’s, totally 4 value(if the absolute
value more than 2.5mbar,then it is useless),only use the valid value for their average.
The weather is judge from the average value.
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