Esser IQ8 Bedienungsanleitung Seite 28

IQ8Wireless transponder for wall mounting
The installation location of the IQ8Wireless transponder should be chosen so that the shortest
transmission path (wireless path) to the wireless bases can be implemented and that no
electro-magnetic interference is to be expected. The function of the IQ8Wireless transponder
may be seriously affected and its range reduced by interference sources or an unsuitable
installation location:
Electrical interference sources

Energy/power cables

Powerful wireless transmitters in the vicinity

Switched-mode electronic circuits

Computer and IT systems
Mechanical interference sources

Metal grating and metal gates

Metal cabinets (cabinet units)

Concrete ceilings and concrete walls

Unfavourable arrangements (angles) of IQ8Wireless transponders and IQ8Wireless
detector bases
If this module causes electro-magnetic interference on radios or televisions that cannot be
rectified by switching the device on and off, the following measures can be carried out to
rectify the interference:

Change the position of the wireless components

Create a greater gap between the module which is exhibiting signs of interference and the
wireless components
The IQ8Wireless transponder operates with a range up to 16 channels within the
frequency band of 433 MHz and up to 7 channels within the frequency band of
868 MHz.
Also consider temporary interference sources such as mobile phones or
computers!
Requirements for the environment

The quality of the wireless transmission depends very much on the ambient temperature.
A reduction in temperature in the monitored rooms, for example at night may have a
negative effect on the wireless quality achieved during the day.

Sliding gates or doors which are open during the day for operational reasons as well as
overhead cranes may disrupt the wireless path when they are closed or in a different
position respectively.
To plan the wireless system the software tools 8000 contains a field strength
measurement tool. This can be used to check the quality of the wireless link (field
strength) between the IQ8Wireless transponder and the IQ8Wireless devices.
If used properly, the "IQ8Wireless transponder (Part No. 805595.10)" complies
with the basic directives and corresponding requirements in according to the
R&TTE Directive 1999/5/EC.
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FB 798941.10 / 02.11