Hanna Instruments HI 2221 - Manual (Page 25)

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Press CFM to save the behavior for one-point calibration.
Press CAL to escape without saving.
pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only) pH RESOLUTION (HI 2223 only)
Press CAL when “rESo” message is displayed on the secondary LCD. The
set resolution (“0.01” or ”0.001”) will start blinking.
Press the ARROW keys to toggle between 0.01 and 0.001 options.
Press CFM to save the modified value.
Press CAL to escape without saving.
CURRENT TIME
CURRENT TIME CURRENT TIME CURRENT TIME CURRENT TIME
Press the CAL key when the current time is displayed. The hour will start
blinking.
Press the ARROW keys to change the hour.
Press the RANGE key. The minutes will start blinking.
Press the ARROW keys to change the displayed value.
Press the CFM key to save the modified value or press the CAL key to
escape without saving.
CURRENT DATE
CURRENT DATE CURRENT DATE CURRENT DATE CURRENT DATE
Press the CAL key when the current date is displayed. The year will start
blinking.
Press the ARROW keys to change the year.
Press the RANGE key. The month will start blinking.
Press the ARROW keys to change the month.