StorMonitor - Installation & commisionning - V2009.01 GB.doc – V2009.01
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II-3 Finding a position to site the antenna:
The choice of location for the antenna should be made during good weather and without any
threat of storm activity, even far away.
Once the area of location has been determined in the light of the preceding criteria, the precise
choice in this area should be determined actively, that is to say, with the antenna connected to
the box itself with the power switched on.
In these conditions, with the antenna held manually, find the optimal location by watching the
bar graph on the processing unit: this should always remain inactive; if the first LED located
at the bottom left of the bar graph comes on and there is no storm activity on the horizon, this
means that there is a source of electrical interference close to the antenna; eliminate this
interference or find another location for the antenna.
Once the choice of location has been finally determined, fix the antenna in its final position in
accordance with the instructions in appendix 3.
Then check that the bar graph remains inactive.
III - Limitations to use:
The StorMonitor sensitivity is optimal for negative lightning surges which are a succession of
discharges. Its operation is linked to the degree of dynamic activity of the storm manifestation
present in the geographical area close to the antenna.
Note:
1- Lightning activity in the sky may not be detected by the StorMonitor; in fact, everything
depends on the distance separating it from the antenna. As an indication, lightning can be seen
with the naked eye up to a distance of 90 km, therefore well beyond the antenna's sensing
range.
2- The sound of thunder is always associated with a flash of lightning, even if you do not see
it. Thus it is possible that even when there is a clap of thunder, the device does not detect it: in
fact, the noise of thunder can extend for up to 30 km, therefore well beyond the antenna's
detection distance.
