This example describes the analog output
overrange behavior when an output uses a range of 0–5 V, scaled to 0–200 000 ppm (= 0–20 %)
CO2. The error output level is set to 6 V, clipping limit is set to 5 %
overrange, and error limit is set to 10 % overrange. CO2 concentrations (ppm) are
indicated for the clipping point and error limit point.
- 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 6 V for the 0–5 V output.