25
IMPORTANT: For manual compensation,
you must disconnect the DO or tempera-
ture probe (see page 9).
1.
Switch the meter on. Press the MODE
key
to select pH mode.
2.
Press the CAL/MEAS key
to enter pH
calibration mode. The CAL indicator will
appear above the primary display.
3.
While in pH calibration mode, press
the MODE key
to enter temperature
calibration mode. The primary display
shows the current temperature setting
and the secondary display shows the
default value 25°C.
See figure
4.
Check the temperature of your sample
using an accurate thermometer.
5.
Press the
▲
or
▼
keys
to offset the
temperature to the measured value
from step 4.
See figure
6.
Press ENTER
to confirm the selected
temperature and to return to the pH
measurement mode.
The meter will now compensate pH
readings for the manually set temperature.
Notes
To exit this program without confirming the
manual temperature compensation value,
DO NOT press ENTER in step 6. Press
CAL/MEAS
instead.
Manual Temperature Compensation
A
A
5.4
B
B