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Use the # $ keys to select CALIBRATE. Then press ENTER. The following will be displayed:
To select the pH value press the ! " keys. Then press ENTER. The following screen is displayed :
The sensor must be immersed in the pH 7 solution, stirred and left submerged. "Reading" stands
for the value read by the sensor. Wait until the value has settled. The value below must be
entered.
Use the # or $ key to enter the value read from the bottle of the buffered solution
Remove the sensor from the pH 7 buffered solution, clean with water, dry and immerse it in the
pH 4 buffered solution and leave it submerged. Wait till the reading value has settled. Use the
# or $ key to enter the value read from the bottle of the buffered solution depending on the
temperature and press ENTER to store the calibration. If the calibration has been carried out
correctly and if the sensor is in good condition, the result will be displayed within a few seconds.
If the sensor cannot provide for a reliable value, the following will be displayed:
If you quit the calibration mode, screen 4 will appear.
mV section
Before you proceed, the buffered solution must be available. Insert the BNC plug of the Redox
sensor to the connector provided for this purpose. Remove the protective cover from the sensor,
clean with water, dry and immerse it in the 650 mV buffered solution, stir and leave it submerged.
If you quit screen 4, select mV using the following keys ! ". Then press ENTER. The following
will be displayed :
Screen 4
pH &
Reading :
Screen 4.1
CAL 1 at
Reading :
Screen 4.2
CAL 2 at
SLOPE:
Screen 4.3
OFFSET: + 01 0 mV
SLOPE of pH
Screen 4.4
UNCALIBRATED
Reading :
Screen 4.5
CAL 1 at
Calibrate
mV
7.24 pH
7.00 pH
6.80 pH
4.00 pH
58 mV / pH
655 mV
650 mV
10
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