Hanna Instruments HI 84431 - Manual (Page 15)

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Press / to highlight the value to be modified
(year, month, day, hour, minute or second). Use
the ARROW keys to change the value.
Press Accept to confirm the new value or ESC to
return to the setup.
This option is used to set the instrument’s date
and time.
Press Modify to change the date/time.
Use the ARROW keys or / in order to
increase/decrease the value.
Press Accept to confirm the value or ESC to return
to the setup menu.
Option: 0 to 20.
This option is used to set the display’s contrast.
Press Modify to change the display’s contrast.
Use the ARROW keys or / in order to
increase/decrease the displayed constrast.
Press Accept to confirm or ESC to return to the
setup menu.
Contrast
Date / Time