elv WS 3001 Mode D'emploi page 86

monitors and large metal surfaces.
To facilitate commissioning you can initially locate the sensors in the vicinity of the
base device (at least 2 m distance). In this way you can check the correct transmis-
sion of data by the transmitter.
8. Range
The free field range, i.e. the range of the line of sight contact between the transmitter
and the receiver is 100 m under normal conditions. Walls and even reinforced
concrete can be traversed, which does, however, reduce the range. A reduced
range can have the following consequences:
● High frequency interference of all types
● Buildings of all types or vegetation
● The range of the wind sensor in particular can be affected by metal roofs or roof
insulation made from aluminium laminated glass wool.
● The distance of the transmitter or receiver from conductive surfaces or objects
(even to the human body or the ground) has an effect on the transmission
characteristics and therefore the range.
● Wide band interference in built up areas can reach levels that reduce the signal-
noise ratio throughout the frequency band which reduces the range.
● Devices with adjacent working frequencies can also affect the receiver.
● Badly shielded PCs can beam into the receiver and reduce the range.
9. Repeater for range increase
Ranges that are reduced by building parameters can be compensated for by a
special repeater developed for weather stations.
The battery-driven repeater equipped with transmitter and receiver receives the
data of all sensors and re-transmits it with a slight time delay. Housed within a
watertight housing the repeater is suitable for both indoor and outdoor mounting.
10. Maintenance and servicing information
Protect the device against dust and moisture. Never clean it with chemical cleaning
materials, use only a soft, dry cloth.
All manuals and user guides at all-guides.com
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