A
LTIMETER MODE
-Setting measuring unit and current altitude : M/Ft
-In Altimeter mode hold button A until M/Ft starting to flicker.
-Press button B to select. Press button A to confirm and digit
start to flicker, repeat procedure to enter altitude.
-Reset Altimeter to sea level 0 Go to altimeter meter setting
mode.
-Repeat procedure to altitude setting, hold button B, the
current altitude will reset to 0
-Max/Min Altitude
-In altimeter mode, press button B to show max/min altitude.
Max/Min display sequentially.
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BAROMETER M
ODE
1.Press button A to enter the Barometer Mode.
2.Press button B to enter the Memory mode.
3.The memory of maximum and minimum barometer will be scrolled on the display
automatically.
4.To reset the memory, press and hold button B. At the same time, the memory for the
hygrometer and the thermometer will be reset also.
5.Left it return automatically to Normal Mode after 50 seconds.
The Atmospheric Pressure Bar Chart
1.Press button B to enter the Bar Chat mode.
2.The atmospheric pressure chart records the atmospheric changes for the past 12 hours
and it will be scrolled on the display automatically.
The history hours are:
-0 H =
Current
-1 H =
Past 1 hour
-2 H =
Past 2 hours
-3 H =
Past 3 hours
-6 H =
Past 6 hours
-12 H =
Past 12 hours
3.To reset the records, press and hold button B.
4.Press button B to quit or left it return automatically to Normal Mode after 50 seconds.
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HYGROMETER MODE
1.
A build-in sensor measure humidity and shows on the
display.
2.
To call the Maximum and Minimum Memory, press
button B to the mode.
3.
To reset the memory, press and hold button B. At the
same time, the memory for the barometer will be reset
also.
THERMOMETER
MODE
1.A build-in sensor measure temperature and shows on the display.
2.To call the Maximum and Minimum Memory, press button B to the mode.
3.To reset the memory, press and hold button B. At the same time, the memory for
the barometer will be reset also.
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Compass Calibration and Environmental Interference
-
It is important to know all digital compasses works with Earth’s magnetic field
and is very sensitive to different environments where the earth magnetic fields
is distorted, such as interference by closing to heavy metal, home appliance,
computer and high power cable…etc.
-
To keep a high accurate heading information, you must calibrate the compass
(1)when the magnetic distort message “Err” is continuously displayed
.
(2)the
numeric heading information with an error more than 10 degree.
(3)when the
unit is used for the first time in a vehicle so as to separate the earth’s field from
the interference.
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