17
16
KEYPAD
OPERATION
1. Remove the probe storage bottle from
meter to expose the electrode out.
It is normal if you find white crystals are
present on the cap or electrode assembly.
WARNING:
For pH meters, please always
make the bottle is filled with storage buffer to
keep the electrode wet and in a good storage
condition.
Electrode
Rotate the
storage bottle in
counter-clockwise
direction and then pull out
the bottle completely to
expose the electrode.
2. Dip the electrode into the test solution.
Press „ „ to power on the meter and tir it
to get a stable reading.
3. A small dot „ . „ is flashing while the meter
is in measurement mode. The LCD not
only shows the measured pH value but
also displays the temperature.
4. Press „
„ to freeze current readings.
The „
„ icon will appear on the LCD and
the small dot will not flash. Press „
„
again to release the hold mode.
5. Turn off the meter by pressing „
„ button.
6. Once finishing the measurement, clean the
electrode, put back the bottle, store the
meter under the 0~50°C.
7. Please see page 18 for the calibration
procedures.
AUTO POWER OFF (SLEEP FUNCTION)
This meter will shut off automatically 20 min.
of inactivity. For operating longer time, you
can disable the sleep mode.
To disable the auto power off:
Before power on, pressing
„ „ + „ „
keys simultaneously until a „n“
appeared on the screen and then
release keys to return to normal mode.
