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HYDRO’pH
®
,
HYDR’ORP
®
,
HYDRO’pH Duo
®
and
HYDRO’pH/ORP
®
instructions
Calibration of pH 7:
CAUTION:
To perform a calibration of the pH, it is imperative to start with the
standard liquid pH = 7.00.
NOTE:
For pool, the calibration with pH = 7.00 may be sufficient. After
operation, check the pH displayed by the controller is the actual pH of
your pool. If it does not match perform the full calibration with pH =
4.00
Process:
=> => => …
The value shown is the pH value to be corrected …
Press again on « Cal » during 5 seconds until you can see « PH7 ».
5s => Calibration in progress
Upon completion of calibration, the controller resumes normal operation and
displays pH = 7.00.
If calibration error, the controller displays:
pH=7
Put the sensor in the
standard reagent pH=7.00
Wait for stabilization of
the controller display.
When the value is
stabilized, perform the
following operation …
Rinse the sensor with clean water
without excessive pressure before
performing the calibration
pH = 4.00