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2015-11-06
4.2 Usage conditions
WARNING
Incorrect planning of usage
Faults occur and are displayed on the control panel.
● Measure the field strength in advance.
● Note the usage conditions and the 'Defining the place of mounting' and
'Transmission field' chapters.
The following usage conditions apply to the radio gateway FDCW221 and the radio
detectors:
● The radio gateway and the radio detectors must be easily accessible for the
service staff at all times:
– Accessing operating elements (plug connection for MC link, button, Reed
contact for the radio gateway)
– Replacing battery
● All devices, even the radio gateway, must always be operated with a battery
● The distance between the radio gateway and radio detector must be noted
(max. 40 m, depending on field strength measurement)
● The building construction will have a major impact on the radio range
– Steel
– Concrete
– Thick or damp walls
● Transmission field damping and reflection
– Doors must be closed when measuring the field strength
– Mirrors in the room will have a negative impact on damping
Limitations
The following application may be unsuitable:
● Rooms with a high level of transmission field damping, for example those with
a framework of metal bars used as a partition or metallic storage racks.
See also
2 Defining the place of mounting [➙ 47]
2 Transmission field [➙ 45]
4.2.1 Environmental influences
If the devices are used in industrial applications, consultation with the project
manager is required, since plastics do not withstand certain environmental
conditions.
The following factors must be taken into consideration:
● Chemicals
● Temperature
● Moisture
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