User Manual

Table Of Contents

ZKAM20 & ZKAM20A User Manual

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 is intact.

3) Whether the input power voltage is correct.

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.