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OBID
®
classic-pro
Installation
ID CPR.M02
FEIG ELECTRONIC GmbH
Page 38 of 42
M21001-3de-ID-B.doc
E N G L I S H
Use caution when the maximum value of the signal amplitude is reached at the minimum or maxi-
mum position of the trim capacitor (Fig. 3.4.3-3). This usually means the antenna is too severely
detuned by the surroundings and can no longer be fully compensated by the trim capacitor.
Beschriftung
Minimale
Kapazität
Maximale
Kapazität
Fig. 3.4.3-3: Minimum and maximum position of the trim capacitor C315
After the antenna has bee tuned, check it again for maximum range and any communication gaps.
NOTE:
•
Notwithstanding the possibility of retuning the antenna as described here, the distance
between the reader and the surrounding metal surfaces must be at least 3 cm. Note that
even other circuit boards may act like metal objects depending on how much copper
they contain.
Labeling
Minimum
capacitance
Maximum
capacitance
Summary of Contents for OBID Classic-Pro ID CPR.M02 Series
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