9
OPERA
TIONAL GUIDE
INITIAL PREPARATION
The instrument is supplied complete with 1.5V AA (4 pcs.) batteries. For placing the batteries inside
the meter, see page 42.
Make sure that the protective micro USB cover is used when not connected to a computer to ensure
waterproof protection.
For
HI98165
connect the pH/temperature electrode to the DIN connector.
Turn the instrument ON by pressing
ON/OFF
key.
At start‑up the display will show the Hanna Instruments logo for a few seconds followed by the
percentage indication of the remaining battery life, then enters the measurement mode.
After measurement switch the instrument off, clean the electrode and store it with a few drops of
HI70300
storage solution in the protective cap (see page 45).
The Auto Power Off feature turns the instrument off after a set period (default 30 min) with no button
pressed to save battery life. To set another period or to disable this feature, see
SETUP
menu on
page 23.
The Auto Light Off backlight feature turns the backlight off after a set period (default 1 min) with
no buttons pressed. To set another period or to disable this feature, see
SETUP
menu on page 23.
pH MEASUREMENTS
To take a pH measurement remove the electrode protective cap and simply submerge the tip of the
electrode (4 cm/1½") into the sample to be tested.
Press
RANGE
key to choose between pH and mV ranges.
Use
MODE
key to select the pH resolution.
Allow time for the electrode to adjust and reading to stabilize (hourglass symbol turns off).
