Gas sensor: description, types, cost

2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16

Any room in which gas equipment is used must be checked for the level of concentration in the air of the products of combustion of gas. To measure this parameter and ensure safe conditions in everyday life and in industry, a special device is used - a gas sensor. What kind of device it is, what functions it performs, is disclosed in the article.

What is a gas sensor

This is a high-precision measuring device designed for continuous automatic monitoring of the amount of dangerous gases contained in the air. Gas alarms are used in industrial, domestic and communal premises.

Gas sensors are available as a separate device that can be placed autonomously in a suitable location. There are also signaling devices included in the kit for valves.

The device is equipped with an analyzer capable of responding to changes in the concentration of certain gases. Various sensors are used to measure the amount of gas in the medium. They areinstantly respond to an increase in the concentration of gases emanating from gas appliances. At a high level of gas contamination, the sensor gives a light and sound signal of danger.

Modern models of sensors are equipped with a liquid crystal display that displays the measured values. Built-in memory allows you to record the received data and store all measurement results.

Also, the display shows information about the he alth of the device and existing problems. This function allows you to change worn items in a timely manner.

Types of gas detectors

Gas control sensors are divided into two main types: household and industrial. Domestic use signaling devices provide a number of reactions to exceeding the set gas concentration parameter. The main tasks of an industrial sensor are to measure and display gas content indicators on the display. Industrial devices are used to solve more demanding tasks and are often used in conjunction with a control panel, to which a signal is supplied from gas sensors.

According to the type of measured gas, signaling devices are distinguished:

1. Methane.
2. Propane.
3. For measuring the concentration of carbon monoxide or carbon monoxide.
4. Combined multicomponent.

According to the installation method, gas sensors are:

1. Stationary - work only from the mains and are located close to the power source.
2. Portable - powered by built-inbattery.

Functionality of gas sensors

The Gas Sensor is a multifunctional device and has the following features:

1. Sound and light notification. If the device reacts to gas contamination, its indicator lights up and a loud beep sounds.
2. Possibility of connecting gas cut-off valve.
3. Availability of a relay output for connecting additional electrical devices: a separate siren, fan, mechanism for a fireman or dispatcher console.
4. Built-in self-contained power supplies.

Installation features

The installation of the gas sensor depends on the type of device and is carried out subject to certain rules. Installation of a household signaling device can be carried out independently, following the manufacturer's instructions. Each sensor model comes with a passport with a device installation diagram.

When choosing a place for the device, it is better to seek help from representatives of the gas service. They know the regulations and can choose the right place.

Usually, gas alarms are placed on the wall near appliances that run on gas (near the column, gas stove, boiler and meter). The distance between the sensor and the gas appliance must not exceed 4 meters.

How not to install a gas sensor:

1. Less than 1 meter away from ovens and gas burners.
2. Bdusty areas.
3. Close to windows or air ducts.
4. Near gasoline, paint, solvent storage areas.
5. Near uninsulated chimneys.

Industrial signaling devices are installed by gas specialists using special technology.

Gas detectors for the boiler room

Boilers and other thermal devices operate on liquid, gaseous and solid fuels, the combustion of which in industrial premises may produce an excess amount of methane and carbon monoxide. This threatens to poison personnel and cause an explosive situation. Gas sensors in the boiler room allow you to timely determine the high concentration of gases and prevent emergencies. All boiler rooms must be equipped with gas control alarms in compliance with the following requirements:

• sensor must work continuously;
• device sensitivity should be selective;
• presence in the apparatus of a program to turn on / off emergency ventilation until the concentration of methane and carbon monoxide reaches a normal value;
• alarms from multiple devices must be connected to a common remote control;
• GOST certificate of conformity;
• The appliance must be of safe design and have the longest life possible.

Gas sensor cost

A sensor can be purchased from any specialized storegas contamination. The price of this device depends on the brand and functionality. So, a household signaling device for propane or methane produced by Promgazenergo costs almost 1.5 thousand rubles. An automatic gas pollution sensor from PKF Energosystems costs about 6 thousand rubles. It can be used in domestic and industrial premises. The price of imported models can exceed 10 thousand rubles.