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Hayward EZ-Chem Manual

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USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 11 of 13 EZ-CHEM Rev. B
Calibrating the probes
pH probe
Use pH 7 and pH 4 buffer solutions (check expiry date).
Rinse your probe with tap water before immersing it in the pH 7 solution.
Hold down the button until the Pump Calibration
pH Probe Cal. menu appears, then conrm with .
The Press CAL
B.Solut. 7pH menu appears.
Soak your probe in the pH 7 buffer solution and press .
Wait until the countdown nishes (60 s) and the Quality 100%
B.Solut. 7pH screen appears.
If the quality of the measurement is not 100%, repeat the calibration or replace the probe.
Rinse your probe with tap water before immersing it in the pH 4 solution.
Press the button.
The Press CAL
B.Solut. 4pH menu appears.
Soak your probe in the pH 4 buffer solution and press .
Wait until the countdown nishes (60 s) and the Quality 100%
B. Solut. 4pH screen appears.
If the quality of the measurement is not 100%, repeat the calibration or replace the probe.
ORP Probe (Only with the ORP option)
Use the 465 / 468 mV calibration solution (check expiry date).
Rinse your probe with tap water before immersing it in the 465 / 468 mV solution.
Press when the calibration of the pH probe is nished.
When the following screen appears Pump Calibration
Rx Probe Cal. , conrm with .
The 465 mV
Press CAL menu appears.
Soak your probe in the 465 / 468 mV calibration solution and press .
Wait until the countdown nishes (60 s) and the
Quality 100%
B.Solut. 465 mV screen appears, then conrm with .
If the quality of the measurement is not 100%, repeat the calibration or replace the probe.
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