User's Manual

User Manual
Andea Electronics http://www.gzandea.com 38/44
8 Troubleshooting
Under normal use, gates can generally work normally for a long period of time
and there are few system failures due to component failure. Most of the failures are
caused by improper use, poor contact of power sockets, excessive AC voltage
fluctuations, loose connection connectors, interference from surrounding electrical
equipment and certain radio waves, and interference from equipment such as wires,
coils, and metal frames. It needs to carefully analyze the cause of the failure then
eliminate them one by one. Until the cause of the failure is found, the system
settings and parameters cannot be changed at will, because the index of the
equipment are already debugged in a better state when the device is shipped from
the factory. In the absence of relevant instruments, the random debugging leads to
difficult judgement and elimination of the failure.
When the equipment does not work normally, such as the detection sensitivity
is reduced, no alarm or frequent false alarms, etc. Generally it should be checked
according to the following instructions:
1. Check if the power supply is working properly
When you find that the system is not working properly, you should check
whether the system power is normal or not:
 Whether the working indicator on the device is blinking;
 Whether the input power voltage is correct;
 Whether the power wiring is open or short;
 Whether the power socket is firmly connected; whether the input voltage
fluctuates too much.
2．System detection sensitivity is reduced
In general, most of the faults that cause the detection sensitivity of the system
to decrease are caused by mutual interference and suppression between the systems,