Measuring The Redox Voltage - wtw inoLab pH/ION Level 2 Operating Manual

Operation
AutoRead criteria
102
For identical measurement conditions, the following criteria
apply:
Reproducibility
Response time

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.
1 Perform the preparatory activities according to
section 4.2.
2 Immerse the Redox electrode into the test sample.
m
3 Press the
measurement appears on the display.
4 Select the Redox measuring mode by pressing
d
. U appears in the status line.
The pH value appears on the display.
5 Wait for a stable measured value.
Note
Redox electrodes are not calibrated. However, you can
check Redox electrodes using a test solution.
better than
> 30 seconds
key repeatedly until the pH/Redox
0.01
±
u
or