| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
Mass flowmeter
A mass flow meter is a device used to directly measure the mass flow of liquids or gases. Mass flow is an important quantity in the monitoring and control of processes in many applications such as industry, research and aerospace.
Mass flow meters use a variety of measurement principles including thermal, Coriolis, vibration, pressure and flow. An example of a thermal mass flowmeter is the hot film anemometer. A hot film anemometer consists of a thin film deposited on a carrier plate. The film is electrically heated and the heat is dissipated by the flow of gas through the film. The cooling of the film is proportional to the mass flow of the gas. By measuring the temperature change of the film, the mass flow of the gas can be calculated.
Another example of a mass flow meter is the Coriolis mass flow meter. A Coriolis mass flow meter consists of a pipe system with a vibrating tube. When a medium flows through the pipe, it creates a Coriolis force that deforms the pipe. By measuring the deformation of the pipe, the mass flow of the medium can be calculated.
The accuracy and sensitivity of mass flow meters depends on several factors, such as the size and shape of the meter, the sensitivity of the signal processing, and the accuracy of the calibration. Some meters have high sensitivity and accuracy, but may be sensitive to noise and vibration. Other meters have greater ruggedness and stability, but lower resolution and sensitivity.
Mass flow meters are used in many applications, such as the chemical industry to monitor the mass flow of liquids and gases, the aerospace industry to monitor the mass flow of fuels and oxidants, and the food industry to monitor the mass flow of liquids and gases.
The selection of the correct mass flow meter depends on the type of medium whose mass flow is to be measured and the specific requirements for the measurement, such as accuracy, sensitivity, temperature range and mass flow range.
... Read more
Mass flow meters use a variety of measurement principles including thermal, Coriolis, vibration, pressure and flow. An example of a thermal mass flowmeter is the hot film anemometer. A hot film anemometer consists of a thin film deposited on a carrier plate. The film is electrically heated and the heat is dissipated by the flow of gas through the film. The cooling of the film is proportional to the mass flow of the gas. By measuring the temperature change of the film, the mass flow of the gas can be calculated.
Another example of a mass flow meter is the Coriolis mass flow meter. A Coriolis mass flow meter consists of a pipe system with a vibrating tube. When a medium flows through the pipe, it creates a Coriolis force that deforms the pipe. By measuring the deformation of the pipe, the mass flow of the medium can be calculated.
The accuracy and sensitivity of mass flow meters depends on several factors, such as the size and shape of the meter, the sensitivity of the signal processing, and the accuracy of the calibration. Some meters have high sensitivity and accuracy, but may be sensitive to noise and vibration. Other meters have greater ruggedness and stability, but lower resolution and sensitivity.
Mass flow meters are used in many applications, such as the chemical industry to monitor the mass flow of liquids and gases, the aerospace industry to monitor the mass flow of fuels and oxidants, and the food industry to monitor the mass flow of liquids and gases.
The selection of the correct mass flow meter depends on the type of medium whose mass flow is to be measured and the specific requirements for the measurement, such as accuracy, sensitivity, temperature range and mass flow range.
... Read more
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| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
| Operating pressure, max. | 5 bar |
| Adjustment options | No option |
| Medium temperature range | -40 to 70 °C |
In practice, the mass flow rate is also specified as the volume flow rate under standard conditions (standard volume flow rate). These pressure and temperature independent volume quantities are obtained by converting the volume measured at operating pressure and temperature back to a normalized volume. These standard conditions are normal temperature 0°C and normal pressure 1013 mbar. The unit volume is indicated by an "n" for standard conditions (e.g. ln/min). If the volume flow is specified under non-standard, so-called standard conditions , the temperature 20°C or 25°C is specified instead of 0°C for the conversion. In this case, the "n" in the unit is replaced by an "s".
What is a mass flow meter and what is it used for?
A mass flow meter is a device that is used to measure the mass flow of liquids or gases. It measures the amount of substance that flows through a particular system per unit of time.
A mass flow meter can work in different ways, but they are all based on the principle of measuring the mass of the medium rather than the volume flow. The Coriolis force, which is generated by the oscillation of a tube, is normally used for this purpose. When the medium flows through the tube, it causes a change in the oscillation frequency, which is proportional to the mass of the medium.
Mass flow meters are used in various industries to monitor and control the flow of liquids or gases. They are used in sectors such as the chemical industry, the food and beverage industry, the pharmaceutical industry, energy production and many others. They are often used in combination with other measuring devices such as pressure or temperature sensors to obtain comprehensive information about the liquid or gas flow.
A mass flow meter can work in different ways, but they are all based on the principle of measuring the mass of the medium rather than the volume flow. The Coriolis force, which is generated by the oscillation of a tube, is normally used for this purpose. When the medium flows through the tube, it causes a change in the oscillation frequency, which is proportional to the mass of the medium.
Mass flow meters are used in various industries to monitor and control the flow of liquids or gases. They are used in sectors such as the chemical industry, the food and beverage industry, the pharmaceutical industry, energy production and many others. They are often used in combination with other measuring devices such as pressure or temperature sensors to obtain comprehensive information about the liquid or gas flow.
How does a mass flow meter work?
A mass flow meter is a device used to measure the mass flow of a fluid (liquid or gas) in a pipe system. There are different types of mass flow meters, but the basic operation is similar.
The most common type of mass flow meter is the thermal mass flow meter. It consists of a pipe through which the fluid flows and a sensor that measures the temperature difference.
When the fluid flows through the pipe, it draws heat from the sensor. The sensor consists of two resistors placed at opposite ends of the tube. One resistor is heated to maintain a constant temperature, while the other resistor measures the temperature of the fluid.
If the fluid flows faster, it extracts more heat, which leads to a greater temperature difference between the two resistances. The change in temperature difference is measured by the sensor and converted into a mass flow.
Another type of mass flow meter is the Coriolis mass flow meter. In this device, the fluid is fed through a curved tube that is set into vibration. The vibrations generate a Coriolis force that is proportional to the mass of the fluid. This force is measured and converted into a mass flow.
There are also other types of mass flow meters, such as the ultrasonic mass flow meter and the vortex mass flow meter. These use different principles to measure the mass flow, but the basic aim is always the same: to accurately determine the mass flow of a fluid in a pipe system.
The most common type of mass flow meter is the thermal mass flow meter. It consists of a pipe through which the fluid flows and a sensor that measures the temperature difference.
When the fluid flows through the pipe, it draws heat from the sensor. The sensor consists of two resistors placed at opposite ends of the tube. One resistor is heated to maintain a constant temperature, while the other resistor measures the temperature of the fluid.
If the fluid flows faster, it extracts more heat, which leads to a greater temperature difference between the two resistances. The change in temperature difference is measured by the sensor and converted into a mass flow.
Another type of mass flow meter is the Coriolis mass flow meter. In this device, the fluid is fed through a curved tube that is set into vibration. The vibrations generate a Coriolis force that is proportional to the mass of the fluid. This force is measured and converted into a mass flow.
There are also other types of mass flow meters, such as the ultrasonic mass flow meter and the vortex mass flow meter. These use different principles to measure the mass flow, but the basic aim is always the same: to accurately determine the mass flow of a fluid in a pipe system.
What types of mass flow meters are there?
There are different types of mass flow meters, including:
1. Thermal mass flow meters: These measuring devices use the heat transfer properties of a fluid to measure the mass flow rate. They are based on the principle that a heated wire or heating foil emits heat to the fluid flowing past. The cooling of the wire or foil is measured and the mass flow rate is calculated from this.
2. Coriolis mass flow meter: These measuring devices use the Coriolis force, which occurs when a liquid or gas flows through a tube that moves back and forth. The mass flow rate is measured by measuring the deformation of the tube or the displacement of a vibrating element.
3. Ultrasonic mass flow meter: These devices use ultrasonic waves to measure the mass flow rate. Ultrasonic transmitters and receivers are placed at opposite ends of a pipe. The transit time of the ultrasonic waves between the transmitter and receiver is measured and the mass flow rate is calculated from this.
4. Vortex mass flow meter: These measuring devices are based on the principle that vortices form behind a body in a fluid. These vortices generate pressure pulses that are proportional to the mass flow. The pressure pulse is measured and the mass flow rate is calculated from this.
5. Pressure mass flow meter: These measuring devices are based on the pressure difference caused by the mass flow of a fluid. The pressure difference is measured and the mass flow rate is calculated from this.
1. Thermal mass flow meters: These measuring devices use the heat transfer properties of a fluid to measure the mass flow rate. They are based on the principle that a heated wire or heating foil emits heat to the fluid flowing past. The cooling of the wire or foil is measured and the mass flow rate is calculated from this.
2. Coriolis mass flow meter: These measuring devices use the Coriolis force, which occurs when a liquid or gas flows through a tube that moves back and forth. The mass flow rate is measured by measuring the deformation of the tube or the displacement of a vibrating element.
3. Ultrasonic mass flow meter: These devices use ultrasonic waves to measure the mass flow rate. Ultrasonic transmitters and receivers are placed at opposite ends of a pipe. The transit time of the ultrasonic waves between the transmitter and receiver is measured and the mass flow rate is calculated from this.
4. Vortex mass flow meter: These measuring devices are based on the principle that vortices form behind a body in a fluid. These vortices generate pressure pulses that are proportional to the mass flow. The pressure pulse is measured and the mass flow rate is calculated from this.
5. Pressure mass flow meter: These measuring devices are based on the pressure difference caused by the mass flow of a fluid. The pressure difference is measured and the mass flow rate is calculated from this.
What advantages does a mass flow meter offer over other measuring methods?
A mass flow meter offers several advantages over other measuring methods:
1. Direct measurement: A mass flow meter measures the actual mass flow independently of pressure and temperature. Other measuring methods such as volume flow meters or differential pressure meters often have to be converted or calibrated in order to determine the mass flow.
2. Accuracy: Mass flow meters offer high accuracy in measuring the mass flow. This is particularly important in applications where precise measurements are required, e.g. in the food or pharmaceutical industries.
3. Insensitive to pressure and temperature fluctuations: A mass flow meter is less susceptible to pressure and temperature fluctuations compared to other measuring methods. This ensures that the measuring accuracy is maintained even under fluctuating operating conditions.
4. Low pressure loss: Mass flow meters generally cause only a small pressure loss, as they do not measure the flow through constrictions in the measuring tube or pressure differences. This can reduce energy consumption and improve the efficiency of the system.
5. Good repeatability: Mass flow meters offer high repeatability of measurement results, i.e. they provide similar results even with repeated measurements. This is important for process controls and quality checks.
6. Low maintenance effort: Mass flow meters generally require little maintenance as they contain no moving parts and are less susceptible to wear or clogging.
Overall, mass flow meters offer reliable and precise measurement of mass flow in various applications and can therefore be used in many areas of industry and research.
1. Direct measurement: A mass flow meter measures the actual mass flow independently of pressure and temperature. Other measuring methods such as volume flow meters or differential pressure meters often have to be converted or calibrated in order to determine the mass flow.
2. Accuracy: Mass flow meters offer high accuracy in measuring the mass flow. This is particularly important in applications where precise measurements are required, e.g. in the food or pharmaceutical industries.
3. Insensitive to pressure and temperature fluctuations: A mass flow meter is less susceptible to pressure and temperature fluctuations compared to other measuring methods. This ensures that the measuring accuracy is maintained even under fluctuating operating conditions.
4. Low pressure loss: Mass flow meters generally cause only a small pressure loss, as they do not measure the flow through constrictions in the measuring tube or pressure differences. This can reduce energy consumption and improve the efficiency of the system.
5. Good repeatability: Mass flow meters offer high repeatability of measurement results, i.e. they provide similar results even with repeated measurements. This is important for process controls and quality checks.
6. Low maintenance effort: Mass flow meters generally require little maintenance as they contain no moving parts and are less susceptible to wear or clogging.
Overall, mass flow meters offer reliable and precise measurement of mass flow in various applications and can therefore be used in many areas of industry and research.
What are the areas of application for mass flow meters?
Mass flow meters are used in various applications to measure the mass flow of liquids or gases. Here are some examples of areas of application:
1. Chemical industry: Mass flow meters are often used in the chemical industry to monitor the mass flow of liquids or gases in various processes. This can be done, for example, when dosing chemicals, monitoring reactions or measuring the supply of raw materials in production.
2. Energy generation: In power generation, for example in power plants, mass flow meters are used to measure the mass flow of gases or steam. This can be useful for monitoring combustion processes, energy generation or measuring fuel supply.
3. Food industry: In the food industry, mass flow meters are used to measure the mass flow of liquids such as water, milk or other ingredients. This can be useful for dosing ingredients, monitoring production processes or measuring the flow of liquids in filling systems.
4. Pharmaceutical industry: In the pharmaceutical industry, mass flow meters are used to measure the mass flow of liquids or gases in various processes. This can be done, for example, when dosing active ingredients, monitoring reaction processes or measuring the supply of raw materials in production.
5. Environmental technology: In environmental technology, mass flow meters are used to measure the mass flow of gases or liquids. This can be helpful, for example, when monitoring air or water quality, measuring exhaust gases or monitoring leaks.
These are just a few examples of applications for mass flow meters. As they are able to accurately measure mass flow, they are used in many industrial areas where precise monitoring of liquid or gas flow is required.
1. Chemical industry: Mass flow meters are often used in the chemical industry to monitor the mass flow of liquids or gases in various processes. This can be done, for example, when dosing chemicals, monitoring reactions or measuring the supply of raw materials in production.
2. Energy generation: In power generation, for example in power plants, mass flow meters are used to measure the mass flow of gases or steam. This can be useful for monitoring combustion processes, energy generation or measuring fuel supply.
3. Food industry: In the food industry, mass flow meters are used to measure the mass flow of liquids such as water, milk or other ingredients. This can be useful for dosing ingredients, monitoring production processes or measuring the flow of liquids in filling systems.
4. Pharmaceutical industry: In the pharmaceutical industry, mass flow meters are used to measure the mass flow of liquids or gases in various processes. This can be done, for example, when dosing active ingredients, monitoring reaction processes or measuring the supply of raw materials in production.
5. Environmental technology: In environmental technology, mass flow meters are used to measure the mass flow of gases or liquids. This can be helpful, for example, when monitoring air or water quality, measuring exhaust gases or monitoring leaks.
These are just a few examples of applications for mass flow meters. As they are able to accurately measure mass flow, they are used in many industrial areas where precise monitoring of liquid or gas flow is required.
What factors influence the accuracy of a mass flow meter?
The accuracy of a mass flow meter can be influenced by various factors, including
1. Calibration: Accurate calibration of the measuring device is crucial in order to achieve accurate measurement results. Poor calibration can lead to measurement errors.
2. Temperature: Changes in temperature can affect the viscosity of the medium and thus impair the accuracy of the measuring device.
3. Pressure: Changes in pressure can change the density of the medium and thus influence the measuring accuracy.
4. Pollution: If the mass flow meter is blocked or impaired by impurities such as dirt, deposits or particles, this can lead to measurement errors.
5. Flow profile: The flow profile of the medium can influence the measuring accuracy. Irregular flow profiles can lead to measurement errors.
6. Installation position: The installation position of the mass flow meter can influence the measuring accuracy. An incorrect installation position can lead to flow disturbances and thus impair the measurements.
7. Operating conditions: The operating conditions, such as the flow rate, can influence the accuracy of the meter. The closer the operating conditions are to the calibration conditions, the more accurate the measurements will be.
It is important to take these factors into account when selecting and using a mass flow meter in order to achieve accurate measurement results.
1. Calibration: Accurate calibration of the measuring device is crucial in order to achieve accurate measurement results. Poor calibration can lead to measurement errors.
2. Temperature: Changes in temperature can affect the viscosity of the medium and thus impair the accuracy of the measuring device.
3. Pressure: Changes in pressure can change the density of the medium and thus influence the measuring accuracy.
4. Pollution: If the mass flow meter is blocked or impaired by impurities such as dirt, deposits or particles, this can lead to measurement errors.
5. Flow profile: The flow profile of the medium can influence the measuring accuracy. Irregular flow profiles can lead to measurement errors.
6. Installation position: The installation position of the mass flow meter can influence the measuring accuracy. An incorrect installation position can lead to flow disturbances and thus impair the measurements.
7. Operating conditions: The operating conditions, such as the flow rate, can influence the accuracy of the meter. The closer the operating conditions are to the calibration conditions, the more accurate the measurements will be.
It is important to take these factors into account when selecting and using a mass flow meter in order to achieve accurate measurement results.
What attributes should be considered when selecting a mass flow meter?
The following attributes should be taken into account when selecting a mass flow meter:
1. Measurement range: The measuring range of the mass flow meter must cover the expected flow rate.
2. Accuracy: The accuracy of the measuring device is crucial in order to be able to carry out precise measurements. It should meet the requirements of the application.
3. Pressure and temperature resistance: The mass flow meter must be able to withstand the pressure and temperature conditions of the application to ensure reliable measurements.
4. Material compatibility: The mass flow meter should be made of materials that are compatible with the media to be measured. They should be resistant to corrosion, wear and chemical reactions.
5. Response time: The response time of the measuring device indicates how quickly it can react to changes in the flow rate. The shorter the response time, the more accurate the measurements are in the event of fluctuations in the flow rate.
6. Installation and maintenance: Installation and maintenance of the mass flow meter should be simple and straightforward in order to save time and money.
7. Communication interfaces: The mass flow meter should have suitable interfaces to enable communication with other systems.
8. Certifications: Depending on the area of application, certain certifications such as ATEX, FM or ISO 9001 may be required. These should be taken into account when selecting the mass flow meter.
9. Costs: The cost of the mass flow meter should be in proportion to the requirements and benefits of the application.
10. Manufacturer and product support: It is important that the manufacturer of the mass flow meter offers reliable customer support and provides spare parts and services.
1. Measurement range: The measuring range of the mass flow meter must cover the expected flow rate.
2. Accuracy: The accuracy of the measuring device is crucial in order to be able to carry out precise measurements. It should meet the requirements of the application.
3. Pressure and temperature resistance: The mass flow meter must be able to withstand the pressure and temperature conditions of the application to ensure reliable measurements.
4. Material compatibility: The mass flow meter should be made of materials that are compatible with the media to be measured. They should be resistant to corrosion, wear and chemical reactions.
5. Response time: The response time of the measuring device indicates how quickly it can react to changes in the flow rate. The shorter the response time, the more accurate the measurements are in the event of fluctuations in the flow rate.
6. Installation and maintenance: Installation and maintenance of the mass flow meter should be simple and straightforward in order to save time and money.
7. Communication interfaces: The mass flow meter should have suitable interfaces to enable communication with other systems.
8. Certifications: Depending on the area of application, certain certifications such as ATEX, FM or ISO 9001 may be required. These should be taken into account when selecting the mass flow meter.
9. Costs: The cost of the mass flow meter should be in proportion to the requirements and benefits of the application.
10. Manufacturer and product support: It is important that the manufacturer of the mass flow meter offers reliable customer support and provides spare parts and services.