Brandson 304339 Mode D'emploi page 17

4. What is carbon monoxide?
Carbon monoxide is a colourless, odourless and tasteless gas which can barely be
perceived by the human senses. It is generated during the incomplete oxidation
of substances containing carbon, such as wood, charcoal, fuel oil, petrol or gas.
Carbon monoxide kills or harms hundreds of people every year. It binds the
haemoglobin in the blood and reduces the amount of oxygen in the body. In high
concentrations, carbon monoxide can poison a person within minutes.
5. Trigger sensitivity
If the device detects increased CO levels, an alarm signal sounds and the red
LED starts flashing. The display of the device shows the current CO value at the
same time. When the CO concentration has dropped to about 30 ppm, the device
switches off the alarm. The product is equipped with a function that detects
a persistent low CO concentration and alerts the user that there is a low CO
concentration. In this case, the device emits 5 beeps every 5 minutes and the red
LED flashes 5 times.
CO concentration
30 ppm
50 ppm
100 ppm
300 ppm
6. Symptoms of CO poisoning
The following symptoms may be related to CO poisoning:
35 ppm The maximum allowable concentration for continuous exposure of
healthy adults in any 8 hour period.
200 ppm Slight headache, fatigue, dizziness, nausea after 2-3 hours
400 ppm Frontal headache within 1-2 hours, life-threatening after 3 hours
800 ppm Dizziness, nausea and convulsions within 45 minutes. Unconsciousness
within 2 hours, Death within 3 hours.
1600 ppm Headache, dizziness and nausea within 20 minutes. Death within 1
hour
6400 ppm Headache, dizziness and nausea within 1-2 minutes.
English
No alarm before
120 min
60 min
10 min
-
Alarm sound
-
90 min
40 min
3 min
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