Hanna Instruments HI 2300 - Manual (Page 23)

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Press the ARROW keys to toggle between 20.0 ºC and 25.0 ºC reference
temperature value.
Press
CFM to save the modified reference temperature value.
Press CAL to escape without saving.
CURRENT TIME
Press CAL when the current time is displayed. The hour and “CFM” tag will
start blinking.
Press the ARROW keys to change the hour.
Press RANGE. The minutes and “CFM” tag will start blinking.
Press the ARROW keys to change the minutes.
Press CFM to save the modified value.
Press CAL to escape without saving.
CURRENT DATE
Press CAL when the current date is displayed. The month and “CFM” tag
will start blinking.
Press the ARROW keys to change the month.
Press RANGE. The day and “CFM” tag will start blinking.
Press the ARROW keys to change the day.
Press RANGE. The year and “CFM” tag will start blinking.
Press the ARROW keys to change the year.
Press CFM to save the modified value.
Press CAL to escape without saving.