The remarks of the definition and reference
ETAGTRON
Alarm speed
（
RATE
）：
the alarm rate can be set to fast or slow. The system default setting is fast. If you would have a alarm is set to slow, then
unpin the jump cap on the jump wire rate.
Automatic threshold control
（
ATC)
：
When the goods stick with RF label, and close to the system, or the external environment has the interference that in
the detection range, the system will mis-alarming. It is easy to move the RF label, and the external interference is
intermittent and random, which is hard to eliminate. ARC circuit can decrease external interference factors. ARC
function’s default is off, to activate it, only needs to unpin the jumper cap on the jumper. ARC function will decrease the
sensitivity to a certain degree, which will make the external interference not lead to mis-alarming. According to the
external interference’ s strength, this process may take 20 seconds to 1.5 minutes. Light interference can be completed
in a small amount of time, and the strength interference will take more time. When ARC function is activated, the
system will alarm only when the label signal is bigger than external signal interferences. This is also mean the detecting
sensitivity will decrease. Keep this in mind that strength interference will influence the detection rang. After eliminating
the external interference, the system will be in a normal sensitivity. Restore and activate time are the same. The
occasional interference or label to system’s sensitivity is rarely influenced, or no influence at all. Of course, because the
ARC function is controlled by external environment, when the ARC function is off, the system will have the best
sensitivity.
Frequency selection
（
FS)
：
The other one way of reducing the false alarming is activating frequency selection character. FS function reduces the
band width of the receiving circuit to exclude the signal that lower or higher than the band width. This function is not
like ARC function, FS function dose not lower the sensitivity when the signal is within the band width, it lowers the
sensitivity when the signal is lower or higher than the band width. Activating the FS function will not affect the normal
tag detection. If you want to use this function, please pull up the jumper cap of the FS jumper. This function may tend
you to pull up the FS jumper, but please notice that the tag frequency will vary near the 8.2MHZ, so do not pull up it in
the normal condition. If the tag frequency varies much, the detection sensitivity will be lower much. The normal tag
frequency ranges small, when the FS function is closed, the tag can trig the system to alarm even if the tag frequency
has big deviation from 8.2MHz; but when the FS jumper is pull up, the detection range will be shorter for those tags
which frequency has deviation from 8.2MHz.
Alarm length control
（
LENGTH
）
：
This function can set the alarm length, connect: long alarm length; unconnected: short alarm length.
