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Insert the oxygen sensor and the external temperature sensor (if
used) into the flask containing the air-saturated water or water-
vapor saturated air.
Ensure that the correct sensor code has been entered in the
Settings
of the corresponding channel. If the sensor code
displayed in the
Factory 0% Calibration
is not correct, click on
Finish
, go to the
Settings
, enter the correct
Sensor Code
and
repeat the calibration.
Then the temperature of the air-saturated water or water-vapor
saturated air needs to be determined. Either, a
Fixed Temperature
is adjusted manually, or the temperature is read from the external
temperature sensor by selecting
External Temperature Sensor
.
NOTE
: Ensure constant calibration conditions! If the external
temperature sensor is selected, ensure that the temperature
sensor is placed close to the oxygen sensor.
Wait now until the oxygen sensor reading is stable by observing
the graph. If
External Temperature Sensor
was selected, ensure
also stable temperature readings indicated at
Temperature
Sensor (°C)
. Note that the button
Set Air
will be
highlighted as soon as the oxygen readings are within
the expected range for the connected sensor type.
If all readings have reached their steady state, click on
Set Air
, and the actual oxygen sensor reading is taken
for the air calibration. If the oxygen reading seems to
be out of the expected range, a warning will be shown
offering the possibility to repeat the calibration. A
completed calibration is indicated by the green
indicator
Calibrated at Air
.
Finally, click on
Finish
for returning to the main
window.
