Chapter 2 Taking Measurements
2.5 Measuring pH
F-51
21
Electrode status
You can check the status of the electrode after calibration
Item
Description
,ERR
Not displayed
The electrode is in good condition.
Electrode sensitivity is from 93% to 100%.
Blinking
Electrode sensitivity has dropped to the level of 90%
to 93%.
・
Make sure that you are using the right standard
solution.
・
Clean the electrode.
Washing the electrodes” page 76
Displayed
Electrode sensitivity has dropped to the level of 85%
to 90%.
ERR 05 Electrode sensitivity error (pH)” page 80
ERR No.04
Asymmetrical potential error
ERR 04 Asymmetric potential error” page 80
ERR No.05
Sensitivity error
