Instruction manual

Chapter 3 pH Measurement
40 HORIBA
Calibration Result Indication
When the electrode sensitivity is still low after calibration, or when a malfunction occurs at
the preliminary check, the following display appears on the screen.
Display Sensitivity Description
Good 90% to 105% You can use it without any problem.
Electrode check 85% to 90%
Wash the electrode.
If the sensitivity does not improve after
recalibration, replace the electrode.
Electrode NG 85% or less than
This appears only for calibration data on the DATA
screen. (Calibration with 85% or less sensitivity
does not apply to measurement, but is recorded on
the DATA screen.)
Replace the electrode.