Conrad Electronic DV928 Notice D'emploi page 72

9. Initial operation
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First commission the outdoor sensor for the temperature/air humidity and then the rain and
wind sensor. Then insert the batteries into the weather station!
This is the only way to ensure the correct function of the devices.
When performing the initial installation, you need the altitude coordinates of your region. This is used
later on to calculate the correction value for the air pressure. To obtain the altitude of your region (an
approximate value is sufficient), consult a map or refer to the website of your city/region.
Prior to installing the rain and wind sensors in a permanent location, we recommend performing a
function test with all devices.
The radio range of 30m (rain sensor and wind sensor) as well as of 100m (outdoor sensor for
temperature/air humidity) is the so-called "free field range", meaning the maximum range in case of
direct sight connection between the transmitter (sensors) and the receiver (weather station).
However, this ideal configuration may not work in practice, as furniture, walls, windows or plants may
be located between the sensors and the weather station.
Another source of interference which significantly reduces the range, is the proximity to metal parts,
electric/electronic devices or cables. Reinforced concrete ceilings, vacuum metallised insulated glass
windows or other devices operating on the same transmission frequency.
Do not place the devices directly next to each other when performing the function test. Keep a distance
of at least 50 cm, otherwise the transmitters may interfere with each other.
a) Temperature/air humidity sensor
• Open the battery compartment on the back by unscrewing the four screws (26) of the battery compartment cover
(25) beforehand. If the rubber seal gets stuck on the battery compartment cover, replace it in the provided slot.
• With the slide switch (29), you can set the transmission channel if your want to operate more than one temperature/
air humidity sensor.
If only one single temperature/air humidity sensor is operated (one is included in the delivery), you must
select channel 1 (required for the recording function)!
• Insert two batteries of type AA/mignon with correct polarity into the battery compartment (30, observe positive/+
and negative/-). All display segments appear briefly on the display, afterwards the first measuring value for the
temperature and the air humidity.
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If there is no display, check whether the batteries are charged and were inserted correctly. If required,
briefly press the countersunk reset button with an open paper clip (do not exert any force when
pressing!) or remove both batteries and insert them again.
• Replace the cover of the battery compartment (25) again and screw it down firmly.
• When selecting the installation site for the temperature/air humidity sensor, make sure that it is protected from
precipitation (e.g. beneath an eave). Otherwise, the sensor would no longer measure the air temperature.
The sensor may also not be exposed to direct sunlight, as this would falsify the measuring values.
The opening for wall mounting (28) serves to hang the temperature/air humidity sensor on a screw or similar.
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