NRI G-13.6 Series, Техническая документация инструкция

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National Rejectors, Inc. GmbH, Buxtehude
G-13.6 Characteristic features of the system
2 Characteristic features of the system
Measuring system
The features of the inserted coins are recognized by six measuring
probes that are installed in successive order. Among others the
measuring parameters are the diameter, the thickness, the alloy and
for certain coins also the embossing features.
The obtaines measurement values are compares with the acceptance
bands stored within the 12 channels. If they correspond completely
with a channel the validator values the inserted coin corresponding to
the programmed denomination or output information respectively,
unless the channel is inhibited by the appropriate DIL switch or the
appropriate input line.
After successful measurement a light barrier in the area of the
acceptance gate checks whether the inserted coins fall unhindered
into the cash channel. Within validators containing a sorting the
'accepted coin sensor' is completed by a 'sorting control'. Only after
passing this additional sensor is the appropriate coin signal given.
Thus the whole acceptance area including the falling direction is
supervised, thus preventing manipulations.
Adjustment of the channels
12 channels are provided in the coin validators to programme all
required types of coins. Apart from the normal bandwidth for many
types of coins a narrow bandwidth can be adjusted. For types of
coins that are likely to be forged a super narrow channel can be
adjusted to provide the greatest possible protection against misuse.
Several channels can have the same coin value. The corresponding
settings are given on the label (upper row: channels 1–6, lower row:
channels 7–12).