User’s Manual
XC-RF850 Reader
42
reader should not exceed the antenna’s operating frequency range (902.75MHz
- 927.25MHz). Otherwise it will affect the performance of the reader.
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Check if the RF output power is low. The RF output power is adjustable.
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Check if the polarization direction of the tag and the antenna is compatible. If
the antenna is vertically polarized, the tag must be placed vertically.
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Check if the tag surface is covered with any other materials. If the tag surface
is covered with other material, the material may cause deviation in the
antenna’s frequency and affect the reading effect of the reader. If the material
is metallic, the reader will be unable to detect the tag, as RF signal is unable
to penetrate metal.
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Check the RF cable connecting the reader and the antenna. If the connector of
the RF cable is loosened or broken, RF signal will become very weak and the
reading distance will be affected.
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Check the properties of the tag. Metallic tag should be installed at metal
surface for the tag to function at full capacity. For other types of tag, please
avoid installation near metallic surface.
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Normal aging of tag performance. Due to long term use, the tag performance
will decline and result in the shortening of the tag reading distance. However,
this will not affect normal usage. Only in the extreme case of aging where
the reading distance becomes extremely close and a replacement should be
considered.
4 Routine maintenance and service
