wtw inoLab pH 720, Operating Manual, Page: 18 / 48

Operation pH 720
18
Note
The current AutoRead measurement (with acceptance of
the current value) can be terminated at any time by pressing
g
.
4.2.2 Measuring the Redox voltage
The instrument can measure the Redox voltage (mV) of a
solution when connected with a Redox electrode, e.g.
SenTix ORP.
Note
Redox electrodes are not calibrated. However, you can
check Redox electrodes using a test solution.
1 Perform the preparatory activities according to sec-
tion 4.2.
2 Immerse the Redox electrode into the test sample.
3 Press the
m
key repeatedly until U appears in the
status line.
The Redox voltage (mV) of the sample appears on
the display.
4 Wait for a stable measured value.