Hanna Instruments HI 98150N - Manual (Page 8)

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OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE
INITIAL PREPARATION
The instrument is supplied complete with batteries. For placing the
batteries inside the meter, see page 33.
To prepare the instrument for use, connect the pH electrode to the input
socket on the top of the instrument. For
HI 98160 connect the temperature
probe to the temperature socket too. The temperature probe is used in
conjunction with the pH electrode for pH temperature compensation, but
it can also be used independently to take temperature measurements. If
the probe is disconnected, temperature can be set manually with the
ARROW keys (see page 9 for details).
Turn the instrument ON by pressing
On/Off.
At start-up the display will show all
the available segments for a few seconds
(or while the button is held), followed
by the percentage indication of the
remaining battery life. The meter is
now ready to operate.
After measurement switch the instrument off, remove the electrodes,
clean the electrode and store it with a few drops of
HI 70300 storage
solution in the protection cap.
Note: In order to avoid error conditions when working with SMART
electrodes, be sure the electrode is connected before the instrument
is turned ON and is disconnected only after the instrument is
turned OFF.
The auto-off feature turns the instrument off after a set period (default
20 min) to save battery life. To set another period or to disable this
feature, see SETUP menu on page 21.
The auto-off backlight feature turns the backlight off after a set period
(default 1 min). To set another period or to disable this feature, see
SETUP menu on page 21.
pH MEASUREMENTS
To take a pH measurement remove the electrode
protective cap and simply submerse the tip of the
electrode (3cm/1¼”) and the temperature probe
(
HI 98160 only) into the sample to be tested. If
necessary, press Range until the display changes to
the pH mode. Allow the electrode to equilibrate and
reading to stabilize (hourglass symbol will turn off).
3cm
(1¼”)