Chen Hsong Ai-02, Operation Manual

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5.48 Password modification
Page layout of password modification (60)
Press ＋ key for over three seconds ， to call the change password
screen (This password is used system operator and supervisor).
Press to select the item to be set, input the corresponding value, and press
key to complete the setting.
To facilitate the operation and management of the machine, every controller has an
initial password when delivery. In this screen, it is suggested to change the class 1
and 2 passwords immediately for better use.
Of which:
"A1": The old password to be modified
"A2": The new password to be inputted
"A3": New password input confirmation