Measuring The Ph Value/Redox Voltage - wtw inoLab pH/Oxi Level 1 Operating Manual

Operation
Preparatory
activities
Temperature probe
80
4.2

Measuring the pH value/Redox voltage

Perform the following preparatory activities when you want
to measure:
m
1 Press the
measurement appears on the display.
2 Connect the electrode to the instrument.
3 Adjust the temperature of the buffer or test solutions
or measure the current temperature if the
measurement is made without a temperature probe.
4 Calibrate or check the instrument with the electrode.
5 Select the measuring mode by pressing
Note
Incorrect calibration of the pH electrode will result in
incorrect measured values. Therefore, regularly perform
calibration before measuring.
Measurements can be performed with and without a
temperature probe. A connected temperature probe is
indicated by TP on the display.
Note
If you use a pH electrode without a temperature probe, the
instrument is able to use the temperature probe of a D. O.
probe that is also connected to the instrument and is
immersed in the test sample. You have to set up this as
described in section 4.6 C
indicator flashes when the temperature probe of the D. O.
probe is used.
key repeatedly until the pH/Redox
ONFIGURATION
m
.
. The TP display