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10.3
Automatic Temperature Compensation
The external temperature sensors can be simply used for recording
the temperature in the measuring setup. However, the
temperature sensor is especially useful in order to compensate
automatically the oxygen sensor signals for temperature variations
in the setup. The temperature compensation is needed due to two
reasons:
the luminescence of the
REDFLASH indicator
is
temperature dependent and
the conversion of some oxygen units needs to be
compensated for the temperature.
In order to activate automatic temperature compensation for
measurements in a water sample, the option
External
Temperature Sensor
has to be selected in the
Conditions in the
Samples
in the
Settings
of the respective channel. The
temperature readings are also saved into the data file. For
measurements in a gas sample, either the
External Temperature
Sensor
or the
Internal Temperature Sensor
can be chosen. In the
latter case, please ensure free circulation of the ambient air around
the
FireStingO2
meter and exclude internal warming.
Please ensure that the oxygen and the temperature sensor are
both inserted into the same experimental setup, if an automatic
temperature compensation for the oxygen measurement is
activated!
Each
FireStingO2
provides only a single port for an
external temperature sensor. For an automatic temperature
compensation of >1 oxygen sensor, all oxygen sensors have to
measure under identical temperature conditions or a temperature
extension module with 4 temperature channels
TeX4
has to be
coupled to the
FireStingO2
. Then the automatic temperature
compensation is performed individually using the temperature
sensor connected to the corresponding port of the
TeX4
.
