Hayward E-Z-PH Manuel D'installation page 11

Store the probe in the buffer
solution
7pH Quality 100%
Probe quality
4pH Press CAL
Calibration requires one minute.
Wait 60s
N.B.
If we set the Calibration function = 7 pH, the system performs calibration for the 7 pH point only.
Code 0000137728 HPE
pH PROBE CALIBRATION
Calibration
Press the CAL key for 3 seconds
Wash the probe
4pH Quality 100%
Probe quality
Press the CAL key to exit and save
the data
rev.
5.0
Wash the probe
7pH Press CAL
Calibration requires one minute.
Wait 60s
Store the probe in the buffer
solution
Wash the probe
Normal state of measurement and
control
9