User Manual

9
2.6.2 Operation of the visible and audible warnings
1D mode: Activation of the visual (and, if activated, audible) warnings during overshoots of the CO
2
thresholds.
S1 = Low threshold = 1000 ppm
S2 = High threshold = 1700 ppm
Level of CO
2
< S1
 Back-lighting off
 Air quality indicator: good
S1 < Level of CO
2
< S2
 Blinking orange back-lighting
 Arrow indicating overshoot of the CO
2
threshold
 Air quality indicator: average
The back-lighting is off in ECO mode
Level of CO
2
> S2
 Blinking red back-lighting
 Arrow indicating overshoot of the CO
2
threshold
 Air quality indicator: poor
The back-lighting is off in ECO mode