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________________________________________________________________________________________________
HYDRO’pH
®
,
HYDR’ORP
®
,
HYDRO’pH Duo
®
and
HYDRO’pH/ORP
®
instructions
Automatic calibration of ORP sensor:
CAUTION:
To perform an automatic calibration of ORP:
filtration must operate for several minutes,
ORP value displayed should be stable,
metering pumps must be off,
and the effective measured value of ORP with your hand-held
device must be recent!
Conditions to perform automatic calibration of ORP:
The sensor must not be faulty or disconnected,
The displayed value of ORP must be between 200mV and 800mV
Process:
=> => => …
Adjust the display value to the value read with your standard reagent …
=>
Value identical to the standard …
=>
If the displayed value of ORP is not between 200 and 800mV …
=>
Calibration error…
=>
Press « Set » to confirm calibration.
Once the calibration is complete, the controller resumes normal operation and
displays the ORP value changed!
If calibration error, the controller displays:
H.
Erasing pH and ORP calibrations :
CAUTION :
To erase pH or ORP calibration, you need to display first the right
parameter to erase. :
Requirement to erase pH calibration :
pH parameter need to be displayed !
Process :
=>
8s
=> pH calibration is erased !