Hanna Instruments HI 98160 User Manual

Page 8

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”)