User Guide

10
If measurements are taken in different samples
successively, it is recommended that the
electrode and the temperature probe are rinsed
thoroughly for better conditioning, and then
blot dry between each measurements. For
this rinsing process, it is recommended to
use a liberal amount of the sample to be
measured.
Using refillable electrodes
Unscrew the small refill cap
to open the refill hole during
measurements. After
measurement replace the refill
hole cap.
The pH reading is directly affected by
temperature. In order for the meter to measure
the pH accurately, temperature must be taken
in consideration.
A perfect equilibrium between the pH
electrode and the sample is reached in
approximately 15 minutes.
To use the meter's Automatic
Temperature Compensation
feature, submerge the
HI7669/2W temperature
probe into the sample as
close to the electrode as
possible and wait for 1-2
minutes.
MANUAL TEMPERATURE COMPENSATION
If you know the temperature of the sample to
be tested you can manually compensate for it.
If manual temperature compensation is
desired the temperature probe must be
disconnected from the instrument.