N. V. Nederlandsche Apparatenfabriek NEDAP ADRRFRFID Manual Do Utilizador

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Manual iSense Lumen series

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If these things don't solve the problem, please contact support.

Active interferer

The first step is to try to locate the source of the active interferer. You can do this by unplugging electronic

devices around the gate (or move them away), and see if the parameters in the 'RF gate performance' section

improve, or when the average height of the spectrum is reduced. If this is the case, you have identified the

active interferer.

When the active interferer is known, the following solutions are possible:

Try to move the active interferer away from the gate as far as possible.

Try to apply filters around the cabling of the active interferer.

Shield the active interferer with aluminium foil of at least 0.05 mm (2 mil.).

If the above solutions don't solve the problem, you can decrease the sensitivity of the system. This can be

done by ticking the 'reduced sensitivity' button in the RF Advanced Config.

The problem could also be solved with additional hardware:

A shielding. This will work in a lot of cases. However, the detection distance will be reduced

with about 20 cm (0.7ft.). The field will also slightly creep around the shield. This is called

'back detection'.

There are also round ferrites 

available that can be used to reduce active interference sources, find

ferrites with optimal impedance at around 8.2MHz

If these things don't solve the problem, please contact support.