Measuring The Orp Voltage - wtw inoLab 740 Operating Manual

inoLab 740
ba75446e05 07/2010
6.4

Measuring the ORP voltage

The measuring system can measure the ORP voltage of a solution in
conjunction with a ORP electrode, e.g. SenTix ORP.
1 Call up the Display mode with
2 Call up the measured variable U with
3 Submerse the ORP electrode in the sample.
4 Wait for a stable measured value.
Note
Note that, when measuring voltages, it can take a long time (even
several hours) until the measured value becomes stable.
ORP electrodes are not calibrated. However, you can check ORP
electrodes using a test solution.
m
.
46
.
pH
85