Knick Portavo 902 PH Instructions page 9

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Calibrating
CALIMATIC Calibration
(Calibration with automatic buffer recognition)
The calibration method is selected in the configuration menu.
Calibration is required to adjust the sensor
pensable for achieving comparable and reproducible measurement
results.
Measurement
pH, mV value,
temperature
mV value blinks until calibration is completed, then successive display of:
Then the meter switches to measuring mode.
Note: To abort calibration, you can press meas at any time. This will be confirmed
by the display message "CAL ABORTED". Exception: When you have selected "CAL
POINTS 1-2-3" and the first calibration step has been completed, the calibration
process cannot be stopped any more.
Calibration method, the number of calibration points and
the buffer set have been selected in the configuration
menu.
Dip sensor in 1st/2nd/3rd buffer solution.
It does not matter which buffer solution is taken first.
Depending on the number of calibration points, the
procedure described for CAL 1/2/3 is repeated.
to the meter. It is indis-
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