The operation of the brightness s
etting is the same as the contrast setting
In the default main interface, pres
s the MENU key to enter the main menu, press the DOWN key
to select the sound setting, press the ENTER key to enter the sound setting, press the DOWN key
to select the key to turn on or off, press the UP key to move the cursor to select the alarm sound
on or off, press ENTER key to confirm, a 代 er hear the continuous tone press MENU to return to
the main interface.
In the default main inter
face, press the MENU key to enter the main menu, press the DOWN key to
select the delete record, press the ENTER key to enter the delete record, press the UP key to move
the cursor, press the DOWN key to select whether to delete, select and press ENTER to confirm the
delete. Press the MENU key to return to the previous menu and the main interface.
In the default main interface, press the E
NTER key to enter the main menu, press the DOWN key
to select the record query, press the ENTER key to enter the record query, press the DOWN key
or UP key to select the curve record query or fault record query, press the ENTER key to enter the
curve record query or Fault record query, press the DOWN or UP key to enter the record, a total of
10 records. Press MENU to return to the previous menu and main interface.