Impact Of The Cell's Temperature - Siemens QGO21 Series Basic Documentation

5.2 Impact of the cell's temperature

The slope of the curve changes on a change of cell temperature.
The lower the temperature, the lower the Nernst voltage and the higher the displayed
oxygen concentration.
The higher the temperature, the higher the Nernst voltage and the lower the displayed
oxygen concentration.
Figure 4: Impact of the cell's temperature on the oxygen value
To limit the error, the temperature in the PLL52 is also considered when calculating the
oxygen value and monitored for a minimum temperature.
The actual temperature is continuously acquired and serves as an input variable for
controlling the cell's temperature and for calculating the actual oxygen content.
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Building Technologies Division Oxygen Sensor QGO21... CC1P7845en
5 Description of functions 06.12.2017