- When the measured CO2 rises above 20 %, the output rises above 5 V.
- The output keeps rising until the measurement is 21 %CO2, at which point the probe outputs 5.25 V.
- If the CO2 level rises above 21 %CO2, the output still remains at 5.25 V.
- If the CO2 level rises above 22 %CO2, the output enters the error state, which is 0 V for the 0 ... 5 V output.
This example uses output scaled to 0 ... 5 V and 0 ... 200000 ppm, error level set to 0 V, clipping set to 5 % overrange, and error limit set to 10 % overrange. CO2 concentrations (ppm) are indicated for the clipping point and error limit point.
|This overrange and error behavior is specific to the analog output, and does not affect the readings of the digital outputs.|
You can change the analog output overrange behavior using the aover command.