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Page
13
Problem Solution
direction. reading.
2.
Make sure the compass calibration procedure
has been followed each time a battery is
installed.
3.
Make sure the magnetic declination has been
entered properly.
4.
Move away from any electronic magnetic
interference sources, such as TVs or computers.
The forecast icon is not accurately
displaying the current weather or the
forecasted weather conditions.
1.
The weather station must run for several days to
trend barometric pressure.
2.
The weather forecast is an estimation or
generalization of weather changes in the next 24
to 48 hours, and varies from location to location.
The tendency is simply a tool for projecting
weather conditions and is never to be relied
upon as an accurate method to predict the
weather.
3.
If you change altitude, the forecast icon must be
reset to the current weather conditions. Altitude
affects have a significant impact on the
measured barometric pressure.
The temperature is not accurate.
The RTD is inside the unit and subject to a thermal time
constant (or the time it takes for the entire display to
reach a given temperature due to the mass of the
display). Thus, rapid changes in temperature take several
minutes to be measured by the digital thermometer. If the
display is close to your body, it will not accurately
measure the ambient temperature, and may take several
minutes when away from your body warmth.
Thus, it is best to hang the display from the carbineer in
the open air to accurately measure the ambient
temperature.
The altimeter changes at a fixed altitude.
Altimeters are often misunderstood because they do not
measure your actual position on the earth (true altitude)
such as a GPS, but measure the air pressure and predict
the altitude based on this measurement. This is referred
to as Pressure Altitude.
Pressure Altitude is adversely affected by the altitude and
to a lesser extent, changes in the weather, often referred
to as barometric pressure changes.
Thus, your Pressure Altitude can change without
changing your position. These changes can be as great as
a thousand feet (the changes due to weather are more
pronounced at higher altitude).
The altimeter is inaccurate at a known
altitude.
See solution above. Make sure you calibrate the altimeter
at a known altitude.
The display reverts back to the date and
time.
This is by design to save battery life. Other modes of
operation consume additional power, especially the
