WRS – Installation Manual
4.10 WRS system installation guidelines
[
N.B.:
For any doubts or queries regarding the WRI receiver installation procedures, please do not
hesitate to contact our Post-sales service, who will be
happy to provide you with the ideal solutions
to all your needs.
4.10.1 General installation rules
The main advantage of a radio-frequency system is its capacity to communicate without being in direct “line-
of-sight”, which means that it can be used to communicate correctly even when it is necessary to "go around"
an obstacle.
Nevertheless, when installing the system every effort should be made to guarantee a direct communications
path between the transmitter and receiver. Each time a wave is reflected by a conductive surface its power is
attenuated, therefore, the less reflections the greater the reliability of the communications between devices.
It is necessary to adopt a number of specific precautions in the case of WRS systems in order to ensure that
they function reliably. The following suggestions are designed to help users to select the best position for the
WRI receiver. However, due to the extremely variable nature of RF systems, users should always check the
final installation by testing it for a period ranging from a few hours to a few days.
The following key points
should be taken into consideration before defining the layout of the WRP+WRI system in the machine:
• All electrically conductive objects that come into contact with the system, including personnel, may
affect the power level.
• All metal containers will reflect propagated radio frequencies. The machine working area and
associated door, when closed, act as “Faraday Cage”, bearing in mind that the wavelength at 2.4
GHz is approximately 120 mm.
• Any conductive object positioned so that it is in contact with, or very close to, the window that
protects the antennas on the WRI receiver or the WRP transmitter may cause the antennas to
become detuned.
• If the WRI receiver is not positioned directly in line with the WRP transmitter, it means that the
majority of the signal it receives has been reflected off the conductive objects present in the
immediate environment (floors, ceilings, machines installed nearby etc.)
• The system should be installed within the machine working area, whenever possible; this is
especially so in the case of very large machines (long transmission distances) and/or when there are
significant metallic obstacles present.
• The immediate vicinity of the WRI receiver must be kept free from all electrically conductive objects;
this is particularly important when the system is installed externally to the machine and/or it is
practically impossible to establish line-of-sight between the transmitter and receiver.
• The WRP transmitter must not be fitted with any unauthorised accessories, especially if they contain
electrically conductive material. If it is absolutely indispensable to install any such devices, please
contact our Post-sales service for specific instructions.
• When evaluating the installation the user should always do so by performing, or simulating, a real
working cycle.
To Next Page
Loading...