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2.4 Allow sufficient time for the display to stabilize. The
instrument
will display the pH value of the sample at the displayed
sample temperature.
If "
OvEr/Undr
" is displayed, the pH value measured is out
of the
“16.00/-2.00 pH” range.
3. Measurement with manual temperature compensation in the
pH-AUTOLOCK mode.
3.1 Connect the pH electrode to the top of the instrument. The
MAN annunciator will be on.
3.2 Press the [MODE] key for the LCD to indicate pH and for
the
AUTO annunciator to be on.
3.3 Rinse the pH electrode with distilled water and immerse it
in the
sample to be measured. Set the instrument to the
temperature of the sample as in 2.2 of pH CALIBRATION
section.
3.4 Press the [MEA/EFF.] key. the WAIT annunciator will start
to
flash. This means that the instrument is waiting for a stable
reading. The display will track the pH value as sensed by
the pH
electrode. When the display changes less than 0.01 pH
within
approximately 10 seconds, the autolock function will be
activated.
The WAIT annunciator will stop flashing and stay off. The
reading