StorMonitor - Installation & commisionning - V2009.01 GB.doc – V2009.01 4
II - Installation and commissioning:
II-1 Installing the StorMonitor main unit:
The antenna is supplied with a 25 meters long cable. If necessary the cable can be extended
(follow the instructions in appendix 2 ; please pay an extreme attention to the electrical
continuity of the cable screening).
The StorMonitor main unit must not be installed close to a source of electrical interference
which may prevent it operating properly.
Connect the power supply unit to the mains, then connect its male Jack to the female socket
6on the back of the StorMonitor main unit : check that the green "POWER" LED 2c on the
processing unit is on.
II-2 Installing the antenna:
The environmental conditions existing during installation have a strong influence on the
choice of geographical location of the antenna; any later changes to them may affect the
system's behaviour, demonstrated by excessive, or a decrease in detection sensitivity; the
nature of the ambient air at the time of installation (according to its degree of ionization) may
make the system more or less sensitive; it is in this way that in certain circumstances, very dry
air can increase sensitivity. It is essential therefore to check sensitivity and the environment
regularly.
Electrical environment:
Ideally the antenna should be in a location without any source of electrical interference like an
electric motor, neon or discharge tube, telephone, loud speaker, in a radius of at least ten
metres around it. It may happen that certain electrical phenomena that cause interference do
not occur during installation, but after a time, randomly or periodically, every 24 hours and at
a set time for example; in this case, the origin must be identified so that the cause can be
eliminated or, if this is impossible, the location of the antenna changed.
External environment:
The antenna should be fixed to an elevated point of the area to be monitored. Generally
speaking, it is recommended :
- not to install it behind a metal surface (corrugated iron for example), close to a metal
beam or framework or metal points that could act as a screen.
- to make sure that the cable connecting it to the main box does not pass close to a
power cable or any cable likely to emit radiation, a loud speaker cable, intermittent
power supply or dimmer, etc.
- to never install it inside a building that could create a Faraday cage and thus inhibit the
electromagnetic waves caused by storm activity and normally sensed by the antenna.
