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Press the "SET" button for three seconds,and conect power supply,can clear all data.
The method of setting current time:
1 x DC 12V Digital Electronic Clock Module Real-time Relay Timing Control Board
Press the "SET" button appear F-1 flashes;press "SET" button again enter into setting minute mode,press "+""-" to adjust minutes parameters;then press "SET" button again enter into setting hour mode,press "+""-" to adjust hours parameters.When \'hours\' is blinking,press "SET" button to complete setting.
F-2 start time
Press "SET" button appear F-1 flashes,through "+""-" button can adjust function code.Then The same method as described above.
F-1 time setting
F-3 stop Time
The method of setting start and stop time: