HND-R106
HND-R106 K09/0422
page 17
Error messages of pH calibration:
Neutral buffer not permissible
- wrong buffer solution
- Buffer solution defective
- Electrode defective
Always use neutral buffer as first
solution (exception: 1 point
calibration)
Use new buffer solution
Clean electrode and calibrate again,
if error occurs again
replace
electrode
Slope is too low:
- Buffer solution defective
- Electrode defective
Use new buffer solution
Replace electrode
Slope is too high:
- Buffer solution defective
- Electrode defective
Use new buffer solution
Replace electrode
Incorrect calibration
temperature
Calibration can only be done at
0...60°C
Permissible electrodes’ data:
Asymmetry: ±55 mV, Slope: -62 ...-45 mV/pH
