ZKRF10M&ZKRF20M
User Manual
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Copyright©2022 ZKTECO CO., LTD. All rights reserved.
5
Maintenance and Cleaning
Simple Troubleshooting
Under normal use conditions, radio frequency detectors generally can work stably for a long period of time,
and system failures caused by component failures are less. Most of the faults are due to:
Improper use.
Poor electrical outlet contact.
Excessive AC voltage fluctuations.
Loose connection cable connections.
Interference from surrounding electrical equipment and certain radio waves.
Interference caused by wires, coils.
Metal frames to equipment.
Carefully analyze the cause of the failure and then eliminate it one by one. Before the cause of the fault is
not found, the settings and parameters of the system cannot be arbitrarily changed. Since all the indicators
of the equipment are adjusted at the factory, they are in a better state.
System is not Working Properly
When each system is not working properly, such as the detection of reduced sensitivity, no alarm or
frequent false alarms, etc., generally the following steps should be checked:
1.
Check power
When it is found that the system is not working properly, first check whether the system power is
normal:
1)
Whether the power indicator on the board is on;
2)
Whether the printed board fuse (f1) is intact;
3)
Whether the input power voltage is correct (24vac);
4)
Whether the power wiring is open or short circuited.
5)
Whether the external power adapter is working properly;
6)
Whether the power socket contacts are reliable;
7)
Whether the input ac voltage fluctuates too much, etc.
2.
After troubleshooting the power supply, you can continue to check other system faults.
System Detection Sensitivity is Reduced
Under normal circumstances, due to the failure of components and components, the detection sensitivity
of the system is reduced. Most of these types of failures are caused by interference between systems and
interference, and the detection of interference caused by metal objects or electrical equipment near the
antenna. For the detection of metal objects, electrical equipment, etc. near the antenna should take
measures to remove, and try to keep it away from the detection antenna system.
