User Guide

6
non-use. However, HI931300 will continue to
log, if in the logging mode, pH and tempera-
ture.
To revive the display, press
the ON/OFF key.
Before proceeding with pH measurements fol-
low the calibration procedure (see page 14).
SETTING DATE/TIME/LOGGING INTERVAL
Press the ALT and the TIME keys simulta-
neously. The display will show the date set-
ting. The year will be blinking.
Use the UP or the DOWN arrow keys to
select the year.
When the correct year is selected, press the
TIME key once. The month will start blinking.
Select the month by using the UP or the
DOWN arrow keys.
ON/OFF
ALT
RANGE
CAL
TIME
DATE
CAL CFM
or
TIME
DATE
CAL CFM
or