What are the usage requirements for thermal gas mass flowmeters

The thermal mass flowmeter is a flow meter based on the principle of thermal diffusion. The device uses the constant temperature difference method to measure the gas accurately. It has the advantages of small size, high digitization, easy installation, accurate measurement and so on.

Measuring medium: Various gases (except acetylene gas)
Pipe diameter range: DN10-2000mm
Accuracy Degree: ±1～2.5%
Pipe material: Carbon steel, stainless steel, plastic, etc

With the widespread use of thermal gas mass flowmeters, many customers do not know much about this flowmeter, today Aister explains the advantages of thermal gas mass flowmeters:

The thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure flow. The instrument adopts constant temperature difference method for gas mass flow sensor part consists of two reference platinum resistance temperature sensors. Using a bridge loop, one sensor measures the flow temperature and the other maintains a constant temperature difference above the fluid temperature, allowing flow measurement under high temperature and high pressure conditions.

The thermal gas flowmeter adopts the principle of thermal diffusion, and the thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions.

Thermal mass flowmeters are known for their ability to provide accurate and reliable measurements of fluid flow rates, regardless of changes in pressure and temperature. This resilience to pressure and temperature variations is due to the operating principle of thermal mass flowmeters and their design features. Here’s why thermal mass flowmeters are not significantly affected by changes in pressure and temperature:

In practical applications, thermal mass flowmeters require careful attention to various factors to ensure accurate and reliable measurement of fluid flow rates. Here are some key considerations for the practical application of thermal mass flowmeters:

Thermal gas mass flowmeters are a type of mass flowmeter specifically designed for measuring the flow rate of gases, while mass flowmeters, in a broader sense, can measure the flow rate of both gases and liquids. Here are some key differences between thermal gas mass flowmeters and other types of mass flowmeters:

One of the key advantages of thermal mass flow meters is their quick response time, enabling real-time monitoring and control of gas flow in dynamic processes. Moreover, these meters are known for their low pressure drop, minimizing energy consumption and preserving the efficiency of the overall system. With no moving parts, thermal mass flow meters also offer low maintenance requirements, reducing downtime and operational costs for industries relying on precise gas flow measurements.

Response speed: 1s
Output signal: 4-20mA (Photoelectric isolation, large load 500Ω)、
pulse、RS-485 (photoelectric isolation)、HART agreement
Alarm: 1-2 relay normally open contact、10A/220V/AC、*/30V/DC
Type of supply: Separate structure, integrated structure
Pipe material: Carbon steel, stainless steel, plastic, etc
Field display: Four lines of Chinese liquid crystal display
Display content: Mass flow, standard volume flow, cumulative flow, standard time, cumulative running time, standard flow rate, etc
Protection grade: IP65
Sensor material: Stainless steel Stainless steel, carbon steel

The thermal gas flowmeter has many remarkable characteristics, which make it widely used in the field of gas flow measurement. The following are the main features of thermal gas flowmeters:

The application of thermal gas mass flow meter in various industries

Thermal Gas Mass Flow Meter is also divided into flange link Thermal Gas Mass Flow Meter and plug-in link Thermal Gas Mass Flow Meter, The following describes the application scope of the Thermal Gas Mass Flow Meter.

The thermal gas mass flowmeter uses the principle of thermal diffusion, and its working principle determines the change of the measured medium gas with the temperature and pressure, which affects the data change of the measured results.

In order to solve the problem of leakage caused by poor measurement accuracy or inability to measure below the lower limit of the instrument, a new type of thermal gas mass flowmeter is developed based on the theory of forced convection heat transfer and the principle of hot wire anemometer. The sensitivity of the instrument is greatly improved and the dead zone of the instrument is reduced by using microfilament structure in the sensitive element and the velocity measuring heating element.

The thermal gas mass flowmeter is an instrument that measures fluid flow based on the principle of heat conduction. This instrument accurately measures the mass flow of gas by using the constant temperature difference method.

The thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure flow. The instrument uses the constant temperature difference method to accurately measure the gas mass flow rate. It has the advantages of small size, high digitization, easy installation, accurate measurement and so on.

In fields such as industrial process control, HVAC systems, compressed air monitoring, and environmental emission detection, the precise measurement of air flow is of vital importance. Thermal gas mass flowmeters, with their unique working principle and excellent performance, have become the ideal choice for air flow measurement. The following is an analysis of its five core advantages:

In the industrial field, companies need to use natural gas, hydrogen and other gas in many process production, sometimes also need oxygen, nitrogen, argon and other made of gas, this part of the gas cost needs to be controlled and monitored, and the selection of monitoring instruments need to consider various issues:

When selecting a thermal mass flowmeter, several important factors should be taken into consideration to ensure it meets the requirements of the application and provides accurate and reliable measurements. Here are key points to pay attention to:

Thermal gas mass flow meter is used to measure and control the gas mass flow meter, different from other gas flow meters, do not need to carry out pressure and temperature correction, directly measure the gas mass flow.

The thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure flow. The instrument uses the constant temperature difference method to accurately measure the gas mass flow rate. It has the advantages of small size, high digitization, easy installation, accurate measurement and so on.

Thermal gas mass flowmeter adopts the principle of thermal diffusion, and thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions.

Choosing the correct installation direction for a thermal gas mass flowmeter is essential for optimal performance and accurate measurement. The installation direction should be determined based on factors such as the flow profile, flow conditions, and manufacturer recommendations. Here are some guidelines to help you choose the appropriate installation direction for a thermal gas mass flowmeter:

The thermal gas flowmeter adopts the principle of thermal diffusion, and the thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions. Typical sensing elements of thermal gas mass flowmeters include two thermal resistors (PT100), one is a speed sensor and one is a temperature sensor that automatically compensates for changes in gas temperature.

Thermal gas mass flowmeter is a high-end gas measuring instrument, with many advantages, wide range ratio, plug-in connection mode can be selected when large diameter, convenient for subsequent disassembly and maintenance, various power supply modes, 24V or 220V can be used, ground pipe local display, high altitude pipe separate display, etc. However, thermal gas mass flowmeters are not suitable for all occasions.

Thermal gas mass flowmeter is based on the principle of thermal diffusion design and production of the product is widely used in steel plants, coking plants, petroleum, chemical, thermal, medical, thermal power plants, environmental protection and other industries.

I believe that friends who understand the thermal gas mass flowmeter know that it can measure a lot of gas flow, why this flowmeter can achieve such a wide range of applications?

Although the thermal gas mass flowmeter has many advantages in this respect, it can not be used for large pipe runoff measurement, pressure loss is relatively large, and the price is more expensive, which limits its measurement application in natural gas long distance pipeline.

The thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure fluid flow. The instrument uses the constant temperature difference method to measure the gas flow accurately. It has the advantages of small size, high digitization, easy installation and accurate measurement. Today we are mainly to talk about the thermal gas mass flowmeter in the installation process need to pay attention to what are?

A thermal gas mass flowmeter is an instrument that measures the flow of fluids based on the principle of heat conduction. This instrument accurately measures gas flow by using the constant temperature difference method. It has the advantages of small size, high degree of digitalization, easy installation and accurate measurement. Today, let’s mainly talk about what matters need to be noted during the installation process of thermal gas mass flowmeters?

Thermal gas mass flowmeter has certain operating procedures and precautions in use, and must pay attention to these points when in use: