Installation and mounting
34
RFM - HF RFID Series
Leuze electronic
5.4
Device arrangement
5.4.1
Selecting a mounting location
In order to select the right mounting location, several factors must be considered:
• Size, alignment (parallel to the read/write system) and position tolerance of the
transponder with respect to the object to be detected.
• The minimum and maximum reading distances determined from the read field of the
devices (see read field curves from page 11) are also transponder dependent.
• The reading location should be as free of metal as possible or at a defined distance
to metal.
• The transponder temperature at the reading location must be within the operating
temperature range.
• The distance between two adjacent devices should be twice as large as the maximum
operating range in order to avoid interference.
• The distance between the RFM / MA and the host system with respect to the permis-
sible cable length of the interface.
The best read results are achieved if
• the transponder is moved over the middle of the antenna (device middle) with an
angular deviation less than ± 10 … 15° to parallelity
• at the reading location, the temperature of the transponder is less than 60°C and the
transponder is not wet
• the reading distance is in the middle part of the read field
• the transponders pass by the device individually
