Vaisala Indigo200 - Figure 16 Analog Output Overrange Behavior Example

Output
voltage (V)
Time
0.00
In error state at
>220000 ppm
(200000 ppm + 10%)
5.00
5.25
Clipped at
210000 ppm
(200000 ppm + 5%)
Regular
measurement
Output clipping limit
Error level
Figure 16 Analog output overrange behavior example
• When the measured CO
2
rises above 20 %, the output rises above 5 V.
• The output keeps rising until the measurement is 21 %CO
2
, at which point the probe
outputs 5.25 V.
• If the CO
2
level rises above 21 %CO
2
, the output still remains at 5.25 V.
• If the CO
2
level rises above 22 %CO
2
, the output enters the error state, which is 0 V for the
0 ... 5 V output.
Indigo201 User Guide M212842EN-B
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