EsiWelma
®
s.r.l.
- 3 -
E117.602_En
Ensure compliance with standards in force for electrical wiring. The devices must be connected to the mains and remain
permanently powered. Omnipolar disconnection must be included in the mains.
The detector and its sensing element have been designed for continuous use in areas where there is permanent occupation by
people, so normally free of polluting or toxic substances or vapours.
The presence of gases or vapours from some substances such as alcohol, silicons or solvents found in some detergents or
polishes, or from the fumes generated by cooking may cause inappropriate action of the detector and in the long term could
affect the reliability of the device.
Read the instructions in this manual and the wiring diagrams carefully, and follow them scrupulously.
The device must be installed by qualified technicians.
3.
Effects of carbon monoxide on the human body
Carbon Monoxide (CO) is a colourless, odourless and non-irritating gas that is classified as a chemical asphyxiant whose toxic
action is the direct result of hypoxia (oxygen deprivation) caused by exposure to it.
Carbon Monoxide is also rapidly absorbed by the lungs and is spread through the pulmonary alveolus where it reversibly binds
with the haemoglobin as carboxyhaemoglobin (COHb), which is present in the bloodstream in small quantities.
The affinity of haemoglobin for CO exceeds its affinity for oxygen by 200 times.
This reduces the capacity to carry oxygen into the bloodstream and also has the effect of dissociation of the oxyhemoglobin
that further reduces the supply of oxygen to the tissues.
CO is chemically stable in the body and is eliminated with the air breathed out.
Elimination is regulated by the same factors that determine its absorption.
