P092D.ABD.CAIRNETGPRS-V2-UserGuide.121018-EN
ENVEA - 111, Bd Robespierre
– CS 80004 – 78304 Poissy Cedex 4 – France
Tel.: +33 (0)1 39 22 38 00
– Fax: +33 (0)1 39 65 38 08
To optimize the ability to recharge the battery, it is strongly recommended to orient the solar panel due SOUTH for
countries in the North of the equator and due NORTH for countries in the South of the equator.
Indicatively the recommended elevation angle is:
From April to October: 25°
From October to April: 45 °
Picture 5: Elevation angle setting.
Minimum requirements of sun exposure on solar panel allowing an optimal charging of the battery:
Solar power on the solar panel surface has to average 340 W / m2 (Irradiance G).
Minimum daily period of sunshine: 5 hours.
More information are available on the website
http://re.jrc.ec.europa.eu/pvgis/apps4/pvest.php
If this conditions are not met, the operation of the system can be degraded and losses of data can occur.
5.4
Some precautions to take care
The following check must be done before any use of the Cairnet:
The free air around the Cairnet when mounted on its support.
The antenna must be oriented towards the sky and barrier-free nearby.
The connector and the inlet sample of the Cairsens must be pointing downwards.
The sensor is positioned in its socket so both its air outputs on the sides aren’t obstructed.
The solar panel or main power supply must be connected to the.
