Instruction Manual

1716
KEYPAD
OPERATION
1. Remove the probe storage bottle
from meter to expose the electrode out.
 It is normal if you nd  white crystals are
present on the cap or electrode assembly.
WARNING: For pH meters, please always
makethebottleislledwithstoragebu󰀨er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ashing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 ash. Press „
„
again to release the hold mode.
5.Turno󰀨themeterbypressing„
„ button.
6.Oncenishing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o󰀨automatically20min.
of inactivity. For operating longer time, you
can disable the sleep mode.
To disable the auto power o󰀨:
Before power on, pressing
„
„ + „ „ keys simultaneously
until a „n“ appeared on the screen
and then release keys to return to
normal mode.