Repeatedly confirmed in the course of numerous experiments: a person in a dream does not smell smoke. According to the sad statistics of the Ministry of Emergency Situations, the vast majority of people die in a fire in their sleep. It doesn't matter what causes the fire. A cigarette that fell out of the hand of a sleeping person (about 80% of all those who died in fires), a faulty stove, a short circuit in the wiring (which everyone cannot replace). There can be many reasons, but the result, alas, is one. Fire detector IP 212 45 is a device that allows you to protect family and friends from the fire element, easy to use and more than affordable.
Danger to humans of combustion products
During the combustion of organic compounds, the carbon contained in them is oxidized by oxygen and carbon dioxide CO2 and CO carbon monoxide are released. Let's clarify right away that IP 212 45 reacts equally effectively to both of these compounds.
During the normal combustion of hydrocarbons, the usual carbon dioxide CO2 is formed. Its normal content in the air is 0.03 … 0.05%. When burning in a closed room with a lack of ventilation, itconcentration rises rapidly. And breathing air with 30% CO2 for at least an hour is a lethal dose for a he althy adult.
Even more insidious is carbon monoxide CO, better known as carbon monoxide. It has only one attached carbon atom, it is formed when combustion occurs with a lack of oxygen. And in a fire that occurs indoors, this is the norm. So, a concentration in the inhaled air of at least 0.4% leads to death within less than half an hour, a concentration of a percentage or more kills almost immediately.
But this is not all the "chemistry" present in the burning building. Combustion products of some polymers are real chemical weapons in their composition.
Description of the IP device 212 45
The shape of the device is somewhat reminiscent of an alien flying saucer. Made from high quality plastic. Disc diameter about 100mm, height about 60mm.
Detector IP 212 45 operates on the principle of refraction of light rays as they pass through the optical medium. The appearance of smoke and soot in the air causes a change in the optical properties of the atmosphere. A sensitive sensor reacts to this change and triggers an alarm.
Moreover, IP 212 45 will not disturb the owners in vain, reacting to changes in air humidity (evaporation from a boiling kettle). Light-sensitive elements are adjusted in such a way as to respond to smoke, as well as excess CO and CO concentrations in the air2.
Detector triggeredis a combination of light indication and sound signal. Moreover, the sound signal is designed to cause maximum discomfort, so ignoring smoke in a house with IP 212 45 will not work. Even a person sleeping soundly (and even in a state of intoxication) is guaranteed to be awakened by the given signal.
Purchase and Installation
Purchasing this or a similar device is not a problem today. You can buy it at almost any consumer electronics store. Recently popular online stores also did not bypass this product.
When buying, you must check the device. In order to test the detector, it is not necessary to fumigate it with smoke. It is enough to place a toothpick, pen refill or other thin object in the center of the device (there is a small hole). The foreign body will play the role of smoke, and the device will work.
IP 212 45 is powered by a 9V battery - "Krona". It is worth looking at the expiration date of the battery so that you do not have to change it right away.
The detector is installed on the ceiling. First, a special plate is attached with two screws (if the ceiling is wooden) or small dowel-nails. Then the device itself is slightly pressed against it and fixed by slightly turning the case by about 30 °. The blinking of the LED indicator once every 40…50 seconds indicates that you are already under the reliable protection of an autonomous fire detector.
Operating Rules
No hasslethe smoke detector IP 212 45 will not deliver to the owner of the house. Once in about 3 months, he will begin to emit one short "beep" per minute for no apparent reason. Thus, the device signals that a power supply replacement is necessary.
Those who at least once changed the batteries in the TV remote control themselves will be able to change it in the detector as well. When replacing the battery, it is recommended to thoroughly blow the lower part of the device (grid) with compressed air or vacuum it.
An autonomous fire detector will not be superfluous in a family, especially with small children or elderly relatives.
