Temperature correction
Altimeter calculated height assuming the temperature, that was measured by the altimeter.
However, in many cases, the temperature may differ significantly from the actual value. It is
enough that before installation, altimeter is exposed to sunlight or a competitor will keep it in his
hand. The measured temperature may then vary up to several degrees C. The difference in
calculating the amount of approximately 0.3% per degree C. For example, height of 355.5 meters
at 24 C, after correction for 20 C temperature is 350.7 (the difference of 4,8 meters).
In the handling software of the altimeter (from version 5.2010), temperature correction is possible.
After typing in the "Temperature" field of the new value and pressing "Enter" key, measurements
will be re-converted and displayed. It is recommended that the start cards had additional line,
which keeps the ambient temperature.
Filter
If the altimeter was not properly mounted and subjected to a direct effect of air flow, it also
works on its dynamic pressure, which distorts the measurements. Also wind gusts interfere. The
graph can be seen as a clear "pin", which differ substantially from the correct chart. You can then
use a filter that removes these erroneous measurements. The measurements are filtered multi-
stages. First, discard the "pins". He then calculated the average and again rejected the
measurements are wrong, but taking into account this average. The result is as smooth graph.
The data read from the altimeter, or read from the disk can be filtered in using
Filter
button on
the left side of the screen.
Data for comparison, can be filtered using the button at the
Filter
, which is under the
"Compare" button.
After filtration, two graphs are drawn - before and after filtration. By clicking the left mouse
button on the chart, you can delete it. When you change the parameter settings of the filter can
filter out the data again, no need in re-load measurements.
Filter parameter can be set settings tab in the Filter
The "altimeter" has its own instructions. Is displayed when you press "Help"
9. USB Adapter
As described earlier, to connect the altimeter
to a computer you need a special adapter. There
are offered two types of adapters: with charger
and without t charger. You can also try to make
cable for connecting the altimeter yourself. To do
this in a typical USB cables cut off one plug
(leave the plug connected to a computer) and
isolate the wire length of approximately 1.5 cm.
Then color-coded wires as in the photo should be
soldered (or tightened) to the appropriate connector pins. Please note that the pin spacing is 2mm.
Below are listed the addresses of shops and types of connectors needed for the implementation of
the cable. Free contact must be filled so that one could not connect the altimeter in the opposite
way.
http://www.tme.eu/pl/katalog/?art=ZL265-5SG#id_category%3D100035%26
zl265-5sg
connector for soldering
http://www.maritex.com.pl/pl/shop/products/ggid/9326
PBMS05S-LF
connector for soldering
BLMS05
Crimp Terminal Housing, 5-pins, single row – clamped connectors
BLMT
Metal terminal, for BLMS and BLMD type housings
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