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Press
CFM
to save the behavior for one‑point calibration.
Press
CAL
to escape without saving.
pH RESOLUTION (HI2223 only)
Press
CAL
when “
rESo
” message is displayed on the secondary LCD.
The set resolution (“
0.01
” or ”
0.001
”) and “
CFM
” 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
Press the
CAL
key when the current time is displayed. The hour and
“
CFM
” will start blinking.
Press the
ARROW
keys to change the hour.
Press the
RANGE
key. The minutes and “
CFM
” 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
Press the
CAL
key when the current date is displayed. The year and
“
CFM
” will start blinking.
Press the
ARROW
keys to change the year.
Press the
RANGE
key. The month and “
CFM
” will start blinking.
Press the
ARROW
keys to change the month.