Repeatedly confirmed during numerous experiments: a person in a dream does not feel the smell of smoke. According to the sad statistics of the Ministry of Emergencies, the vast majority of people die in a fire in a dream. And no matter what causes the fire. A cigarette that fell out of the hands of a asleep (about 80% of all those killed in fires), a malfunctioning stove, a short circuit in the wiring (which all hands do not reach to replace). There may be many reasons, but, alas, there is only one result. Fire detector IP 212 45 - 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 burning of organic compounds, the carbon contained in them is oxidized with oxygen and CO2 dioxide and carbon monoxide are released. We immediately specify that IP 212 45 reacts equally effectively to both of these compounds.
With the normal combustion of hydrocarbons, the usual carbon dioxide CO 2 is formed . Its normal content in the air is 0.03 ... 0.05%. When burning indoors with no ventilation, its concentration is rapidly increasing. And inhaling air with 30% CO 2 for at least an hour is a lethal dose for a healthy adult.
Even more insidious is carbon monoxide CO, better known as carbon monoxide. It has only one attached carbon atom, is formed when combustion occurs with a lack of oxygen. And in a fire occurring indoors, this is the norm. So, a concentration in the inhaled air of at least 0.4% leads to death in less than half an hour, a concentration of a percentage or more kills almost immediately.
But this is far from the whole “chemistry” present in the burning building. The combustion products of some polymers are a real chemical weapon in their composition.
Description of the device IP 212 45
In form, the device is somewhat reminiscent of a flying saucer of aliens. Made of high quality plastic. The diameter of the disc is about 100 mm, the height is about 60 mm.
The IP 212 45 detector works by the principle of refraction of light rays when they pass through an optical medium. The appearance of smoke and soot in the air causes a change in the optical properties of the atmosphere. The sensitive sensor responds to this change and triggers an alarm.
Moreover, IP 212 45 will not in vain disturb the owners, reacting to changes in air humidity (evaporation from a boiling kettle). The photosensitive elements are configured in such a way as to respond to smoke, as well as an excess of CO and CO 2 concentrations in the air.
The detector operation is a combination of light indication and sound signal. Moreover, the sound signal is designed to cause maximum discomfort, so ignoring the smoke in the house with IP 212 45 will not work. Even a person sleeping soundly (and even when intoxicated) is guaranteed to be awakened by the signal given.
Purchase and installation
Purchasing this or a similar device is no problem today. You can buy it at almost any consumer electronics store. Recently popular online stores also did not pass this product.
When buying, you must check the device. In order to test the detector, it is not necessary to smoke it. It is enough in the center of the device (there is a small hole) to place a toothpick, a pen from a fountain pen or other thin object. A foreign body will play the role of smoke, and the device will work.
IP 212 45 is powered by a 9V-Krona battery. It’s worth taking a look at the battery’s expiration date so that you don’t have to change it right there.
The detector is mounted on the ceiling. First, a special plate is fastened with two self-tapping screws (if the ceiling is wooden) or small dowel-nails. Then the device itself is slightly pressed against it and fixed by a slight turn of the housing by about 30 °. The flashing of the LED indicator once in about 40 ... 50 seconds indicates that you are already under the reliable protection of an autonomous fire detector.
Terms of Use
The smoke detector IP 212 45 will not deliver any trouble to the owner of the house. Once in about 3 months, for no apparent reason, he will begin to issue one short “squeak” per minute. Thus, the device indicates that a replacement power supply is required.
Anyone who at least once independently changed the batteries in the TV remote control will be able to change it in the detector. When replacing the battery, it is recommended to thoroughly blow the bottom of the device (grill) with compressed air or vacuum it.
An autonomous fire detector will not be superfluous in the family, especially with young children or elderly relatives.