User Guide

12
Make sure that the pH electrode and the
temperature probe are securely connected to
the meter. If possible, use plastic beakers to
minimize any EMC interferences.
To take pH measurements,
simply submerge the bottom
4 cm (1½") of the electrode
and the temperature probe in
the solution to be tested, stir
gently and allow a few sec-
onds for the electrode to adjust and stabilize.
For greatest accuracy, it is recommended to
calibrate the meter regularly (see page 14).
The pH reading of any sample is directly
effected by temperature. In order for the meter
to measure the pH accurately, it must know
the temperature.
To use the meter's Automatic Temperature
Compensation capability, submerge the tem-
perature probe in the sample as close to the
electrode as possible.
If the temperature probe is
disconnected, the meter as-
sumes that the temperature
of the solution is 25°C (default temperature).
Press the RANGE key to show the tempera-
ture reading. If the temperature probe is dis-
connected the "°C" symbol will be blinking.
If measurements are taken successively in
different samples, it is recommended to rinse
the electrode thoroughly with deionized or tap
water first and then with some of the sample
to be tested. This procedure will minimize
contamination between the samples, result-
ing in more accurate results.
pH
4 cm
(1½")
RANGE
°C