Product does not display or display anomalies
answer:
1. The lack of phase of the external power supply will cause the product not to be displayed;
2. If the power supply voltage is low (85% of the rated voltage of the low voltage) or the communication line is seriously interfered, the product display will be abnormal (for example, the interface is not flashing normally);
3, power circuit open circuit (breaker phase failure, power line loose, internal power jumper loose, etc.)
E-mail: 
Tel: 400-8262-889
Fax: 0577-85600699
Contact: Mr. Ji
