Bosch LECTUS secure ARD-SIGR20-SEO Installation Manual page 8

8 en | Short information
Table 2.1: Maximum reading distances of the different credentials for the LECTUS secure readers
Notice!
The reading distances listed above are distance ranges measured on the basis of a selection
of transponder media. These measured reading distances are to be regarded as typical
i
guide values.
If other transponder media are used (chip type, design, size, production process), the
distance ranges may differ and it is recommended to carry out a suitability and functional
test of the respective medium before using or planning to use the reader.
Influencing (reducing) the reading distance
The reading distance can be influenced due to different reasons. On the one hand this is
influenced by the medium (i.e. the data carrier) and on the other hand by the ambient
conditions of the antenna and the data carrier.
The following is a list of points that can reduce the reading distance:
–
–
–
–
2024-04 | V01 |
ARD-SIGR20K-ICL
ARD-SIGR20-SEO
ARD-SIGR40-ICL
ARD-SIGR40K-ICL
"Shade" or shield the data carrier with metal, such as EC card in your wallet, key fob on
your key ring, etc.
No optimal coupling, i.e., the antenna surface of the data carrier is perpendicular (90 °)
to the antenna surface of the reader
Data carrier itself
– key fob (small active antenna surface)
– "bad" response from the data carrier (ID card / key fob)
– combination ID card (e.g. LEGIC® / inductive, MIFARE / inductive etc.)
Metal in the "active" effective area of the HF field. The transmission energy is
attenuated. This point is particularly relevant when installing the reader components in
metal front panels (including metal columns, etc.).
9.5 cm 5 cm
- -
15 cm 9 cm
13 cm 7 cm
Installation manual
LECTUS secure
2.5 cm 1.5 cm
3 cm 4 cm
4 cm 5.5 cm
4 cm 2 cm
Bosch Security Systems B.V.