Oxygen gas analyzer

Gas analyzer for oxygen measurement - automated monitoring in industrial facilities

Oxygen (O2) is the most abundant element on Earth, which in one way or another is necessary for all life processes. Even with a minimal decrease in its level in the atmosphere, negative consequences for humans and the environment can be observed. At the same time, prolonged inhalation of air excessively enriched with this element (in particular, oxygen-containing gas mixtures) can lead to poisoning and is also dangerous. For this reason, the measurement of oxygen content in various industrial facilities has become a key task in the field of gas analysis. Regular monitoring of the corresponding values is necessary to ensure the safety and continuity of production processes, as well as to control product quality and maintain a stable environmental situation.

The Hobbit-T oxygen gas analyzer is an indispensable device for any industrial enterprise. It allows to measure with maximum accuracy the excess or insufficient oxygen content in the air of the investigated environment. When working in confined spaces, where there is a risk of deficiency or excess of O2, the use of such a device is the most important safety measure. In Kazakhstan, Promanalit Company designs and sells gas analytical equipment.

General information about oxygen gas analyzers

The Hobbit-T oxygen gas analyzer belongs to the category of modern multichannel devices. The equipment requires only minimal human involvement, most of the operations are performed automatically. At the same time, the oxygen gas analyzer is portable, which allows you to measure indicators simultaneously at several points of the object under study.

The principle of operation of these gas analyzers is reduced to the conversion of the measured content into the electrical parameters of working sensors. The current of the latter corresponds to the partial pressure of oxygen in the analyzed medium. The devices have two alarm thresholds - warning and emergency. Immediately after signaling of oxygen concentration exceeding the upper and lower limits, forced ventilation can be switched on.

Directly permissible limits of O2 concentration determine two factors - provision of threat to human life or health, as well as the possibility to take timely decisions to eliminate this threat. Thus, the oxygen gas analyzer not only measures the required values, but also makes it possible to eliminate a dangerous situation.

Technical specifications of O2 analyzers

Modern gas analyzer for measuring oxygen, which you can order in the company “Promanalit”, has the following characteristics:

• total number of channels per 1 indication unit - up to 16 (in any combinations);
• reading range - from 0 to 150 mg/m3;
• oxygen concentration measurement parameters - from 20 to 120 mg/m3;
• measurement error - not more than 20%;
• alarm activation threshold - 20 and 120 mg/m3 respectively.

Gas analysers of this category are equipped with light and sound indication and support integration with a personal computer. For switching of executive devices (emergency ventilation, signalling, blocking) they have relay (dry contact type) and current outputs (0 to 5 mA, 4 to 20 mA). At the same time, the equipment allows setting the relay switching conditions in accordance with individual parameters.

The O2 gas analyser provides instantaneous readings of the measurement result with detailed indication (obtained value, measuring unit, chemical formula of the substance). The information on the display is clearly visible even in bright sunlight, which speeds up monitoring and analysis in such conditions.

In addition, the oxygen gas analyser is not afraid of extreme temperatures. These devices are suitable for operation in temperature ranges from -40 to +45 degrees Celsius. In the basic version, the sensors are resistant to aggressive environments and abundant humidity. On request, the device can be equipped with an explosion-proof sensor (such models are labelled ExibIIBT6).

Equipment

The standard equipment of the oxygen analyser includes:

• display units;
• sensors;
• mating parts to the connectors;
• operating manual;
• passports.

If necessary, the O2 gas analyser can be equipped with switching blocks. Explosion-protected modifications are additionally equipped with spark protection units and also have a power supply unit of high fire resistance class.

The switching unit is designed for integration with external executive equipment (e.g. motor starters for forced ventilation, which is automatically switched on when the limit is reached).

The portable oxygen gas analyser does not require much maintenance as there is no need to clean the electrodes. It is enough to occasionally give the equipment to a specialist for inspection. The sensors require calibration every 2-3 months depending on the intensity of use.

Scope of use of portable oxygen gas analysers

These devices are used in many production facilities, as well as in other workplaces where there is a risk of a critical decrease or increase in O2 concentration. Gas analyser for oxygen measurement is indispensable in metallurgy, nuclear and thermal power engineering, oil refining and mining industries, medicine, agriculture. It can also be useful at housing and utilities facilities - in gas networks, tunnels, wells.

Devices of this category are used in the synthesis of various substances, purification of liquids, heat treatment, as well as for monitoring the tightness of pipelines and constant control of inert gases (including welding chambers and glove boxes). The O2 gas analyser finds application in a wide range of companies that actively use nitrogen and oxygen.

Thus, the oxygen gas analyser is a multifunctional device that allows you to accurately and quickly measure the composition of the air of the environment under study. The device is used as an element of control of working conditions, as well as within the framework of a comprehensive environmental monitoring system. At the same time the manufacturer Promanalit offers the possibility to order the device with an individual configuration that meets specific conditions and purposes of use. Regardless of the modification, all equipment is manufactured in accordance with the environmental standards of Kazakhstan.