| Resolution | 0.3 µbar |
| Linearity | 0.1 % |
| Accuracy | 1 % |
Pressure gauges, electronic
Pressure gauges convert the physical quantity of pressure to a pressure-equivalent electrical output quantity. Pressure sensors can be divided into absolute pressure / relative pressure and differential pressure sensors.
Absolute pressure sensors:
With absolute pressure measurements, the pressure compared to a vacuum in a control chamber is measured.
Differential pressure sensors:
The differential pressure sensor is equipped with two pressure ports, P1 and P2. The difference between pressure P1 and P2 is measured.
Relative pressure sensors:
With relative pressure measurements, the difference to the ambient pressure is measured. The zero point of the relative pressure sensor is the ambient pressure. To avoid influences caused by pressure fluctuations, the sensor is equipped with an opening through which the surrounding atmospheric pressure is applied and, thus, pressure fluctuations in the atmosphere can be compensated.
The SI unit of pressure is the pascal. This corresponds to a pressure of 1 N/m². The unit "bar" continues to be used. 1 bar is equivalent to 100000 Pa. ... Read more
Absolute pressure sensors:
With absolute pressure measurements, the pressure compared to a vacuum in a control chamber is measured.
Differential pressure sensors:
The differential pressure sensor is equipped with two pressure ports, P1 and P2. The difference between pressure P1 and P2 is measured.
Relative pressure sensors:
With relative pressure measurements, the difference to the ambient pressure is measured. The zero point of the relative pressure sensor is the ambient pressure. To avoid influences caused by pressure fluctuations, the sensor is equipped with an opening through which the surrounding atmospheric pressure is applied and, thus, pressure fluctuations in the atmosphere can be compensated.
The SI unit of pressure is the pascal. This corresponds to a pressure of 1 N/m². The unit "bar" continues to be used. 1 bar is equivalent to 100000 Pa. ... Read more
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| Resolution | 0.1 mbar |
| Accuracy | 0.2 % |
| Scanning rate | 30 ms |
| Scanning rate | 30 ms |
| Accuracy | 0.15 % |
| Measurement range | 50 to 1,000 Torr |
| Number of measurement channels | 1 Kanal |
| Linearity | 1 % |
| Internal measurement data memory capacity | 125 Messwerte |
| Scanning rate | 30 ms |
| Number of measurement channels | 2 Kanal |
| Accuracy | 0.2 % |
| Number of measurement channels | 1 Kanal |
| Accuracy | 0.15 % |
| Measurement range | 1 to 1,000 Torr |
| Scanning rate | 30 ms |
| Number of measurement channels | 2 Kanal |
| Linearity | 1 % |
| Number of measurement channels | 1 Kanal |
| Resolution | 10 mbar |
| Linearity | 0.2 % |
| Scanning rate | 2 ms |
| Linearity | 0.01 % |
| Accuracy | 0.15 % |
| Scanning rate | 30 ms |
| Linearity | 0.2 % |
| Accuracy | 0.2 % |
| Weight | 837 g |
| Accuracy | 0.2 % |
| Measurement range | 1,000 Torr |
| Resolution | 1 mbar |
| Linearity | 1 % |
| Internal measurement data memory capacity | 125 Messwerte |
| Scanning rate | 2 ms |
| Accuracy | 0.2 % |
| Measurement range | 0.1 to 1,000 Torr |
| Scanning rate | 1.25 Hz |
| Accuracy | 2 % |
| Number of measurement channels | 1 Kanal |
| Resolution | 0.01 to 1 bar |
| Scanning rate | 4 Hz |
| Accuracy | 0.2 % |
| Scanning rate | 10 Hz |
| Accuracy | 1 % |
| Number of measurement channels | 1 Kanal |
| Number of measurement channels | 1 Kanal |
| Measurement range | 0 to 400 bar |
| Pressure type | Relative pressure |
| Scanning rate | 10 Hz |
| Internal measurement data memory capacity | 1,024 Messwerte |
| Accuracy | 0.5 % |
| Resolution | 0.01 to 1 mbar |
| Scanning rate | 4 to 1,000 Hz |
| Internal measurement data memory capacity | 99 to 9,999 Messwerte |
Relative pressure sensors:
For relative pressure measurements, the difference to the ambient pressure is measured. The zero point of the relative pressure sensor is the ambient pressure. In order to avoid influences caused by fluctuations in compressed air, the sensor has an opening through which the atmospheric pressure surrounding it is applied and thus compensates for fluctuations in the compressed air of the atmosphere.
The SI unit of pressure is the pascal. This corresponds to a pressure of 1 N/m². Another unit is "bar". 1 bar corresponds to 100000 Pa. Relative pressure sensors:
For relative pressure measurements, the difference to the ambient pressure is measured. The zero point of the relative pressure sensor is the ambient pressure. In order to avoid influences caused by fluctuations in compressed air, the sensor has an opening through which the atmospheric pressure surrounding it is applied and thus compensates for fluctuations in the compressed air of the atmosphere.
The SI unit of pressure is the pascal. This corresponds to a pressure of 1 N/m². Another unit is "bar". 1 bar corresponds to 100000 Pa.
For relative pressure measurements, the difference to the ambient pressure is measured. The zero point of the relative pressure sensor is the ambient pressure. In order to avoid influences caused by fluctuations in compressed air, the sensor has an opening through which the atmospheric pressure surrounding it is applied and thus compensates for fluctuations in the compressed air of the atmosphere.
The SI unit of pressure is the pascal. This corresponds to a pressure of 1 N/m². Another unit is "bar". 1 bar corresponds to 100000 Pa. Relative pressure sensors:
For relative pressure measurements, the difference to the ambient pressure is measured. The zero point of the relative pressure sensor is the ambient pressure. In order to avoid influences caused by fluctuations in compressed air, the sensor has an opening through which the atmospheric pressure surrounding it is applied and thus compensates for fluctuations in the compressed air of the atmosphere.
The SI unit of pressure is the pascal. This corresponds to a pressure of 1 N/m². Another unit is "bar". 1 bar corresponds to 100000 Pa.
What are the advantages of electronic pressure gauges compared to mechanical ones?
Electronic pressure gauges offer several advantages compared to mechanical pressure gauges:
1. Accuracy: Electronic pressure gauges generally provide greater accuracy and precision when measuring pressure values. They can detect minor changes in pressure and provide more accurate measurements.
2. Scalability: Electronic pressure gauges can be easily adapted to different pressure ranges. By using sensors and digital technology, they can be easily calibrated and reprogrammed to cover different measuring ranges. Mechanical devices, on the other hand, often require the replacement of scales or measuring ranges.
3. Digital display: Electronic pressure gauges have a digital display that shows the current pressure value accurately and clearly. This makes it easier to read and record measured values compared to mechanical devices where a scale has to be read.
4. Automatic data recording: Electronic pressure gauges can automatically record and save measured values. This makes it easier and more accurate to record measurement data and facilitates the analysis and monitoring of pressure changes.
5. Additional functions: Electronic pressure gauges can often offer additional functions, such as saving measured values, setting up alarm signals at certain pressure values or wireless transmission of measurement data. These functions improve user-friendliness and enable better control and monitoring of printing.
6. Longevity: Electronic pressure gauges are often more robust and durable than mechanical devices. They are less susceptible to wear or damage caused by vibrations or shock loads and generally have a longer service life.
7. Versatility: Electronic pressure gauges can be used for various applications and environments. They are generally compact and lightweight, which makes them suitable for use in various industries and in mobile or space-critical environments.
It is important to note that mechanical pressure gauges can still be used in certain applications, especially where high resistance to environmental influences or a simple and cost-effective solution is required. The choice between electronic and mechanical pressure gauges depends on the specific requirements of the application.
1. Accuracy: Electronic pressure gauges generally provide greater accuracy and precision when measuring pressure values. They can detect minor changes in pressure and provide more accurate measurements.
2. Scalability: Electronic pressure gauges can be easily adapted to different pressure ranges. By using sensors and digital technology, they can be easily calibrated and reprogrammed to cover different measuring ranges. Mechanical devices, on the other hand, often require the replacement of scales or measuring ranges.
3. Digital display: Electronic pressure gauges have a digital display that shows the current pressure value accurately and clearly. This makes it easier to read and record measured values compared to mechanical devices where a scale has to be read.
4. Automatic data recording: Electronic pressure gauges can automatically record and save measured values. This makes it easier and more accurate to record measurement data and facilitates the analysis and monitoring of pressure changes.
5. Additional functions: Electronic pressure gauges can often offer additional functions, such as saving measured values, setting up alarm signals at certain pressure values or wireless transmission of measurement data. These functions improve user-friendliness and enable better control and monitoring of printing.
6. Longevity: Electronic pressure gauges are often more robust and durable than mechanical devices. They are less susceptible to wear or damage caused by vibrations or shock loads and generally have a longer service life.
7. Versatility: Electronic pressure gauges can be used for various applications and environments. They are generally compact and lightweight, which makes them suitable for use in various industries and in mobile or space-critical environments.
It is important to note that mechanical pressure gauges can still be used in certain applications, especially where high resistance to environmental influences or a simple and cost-effective solution is required. The choice between electronic and mechanical pressure gauges depends on the specific requirements of the application.
How do electronic pressure gauges work?
Electronic pressure gauges, also known as pressure sensors or manometers, work on the basis of various technologies that measure the pressure in a medium and convert it into an electrical signal.
There are different types of electronic pressure gauges, but the basic principles are similar. Here are the general steps on how they work:
1. Pressure absorption: The pressure measuring device is equipped with a sensor that detects the pressure of the medium in which it is installed. The sensor may vary depending on the type of pressure measuring device. For example, piezoresistive sensors can measure pressure based on changes in electrical resistance, while capacitive sensors measure pressure based on changes in electrical capacitance.
2. Signal conversion: The sensor converts the measured pressure into an electrical signal. This can be done by various methods, such as using Wheatstone bridges or a combination of capacitors.
3. Signal amplification: The electrical signal is amplified to make it suitable for further processing or display. This is normally done with the help of an amplifier, which raises the signal to a higher voltage or current level.
4. Data output: The amplified signal is either sent to a display device to read the pressure or to another device, such as a computer or control system, to process or store the data.
It is important to note that electronic pressure gauges must be calibrated to ensure accurate measurements. This can be done either on site or at the manufacturer's factory.
There are different types of electronic pressure gauges, but the basic principles are similar. Here are the general steps on how they work:
1. Pressure absorption: The pressure measuring device is equipped with a sensor that detects the pressure of the medium in which it is installed. The sensor may vary depending on the type of pressure measuring device. For example, piezoresistive sensors can measure pressure based on changes in electrical resistance, while capacitive sensors measure pressure based on changes in electrical capacitance.
2. Signal conversion: The sensor converts the measured pressure into an electrical signal. This can be done by various methods, such as using Wheatstone bridges or a combination of capacitors.
3. Signal amplification: The electrical signal is amplified to make it suitable for further processing or display. This is normally done with the help of an amplifier, which raises the signal to a higher voltage or current level.
4. Data output: The amplified signal is either sent to a display device to read the pressure or to another device, such as a computer or control system, to process or store the data.
It is important to note that electronic pressure gauges must be calibrated to ensure accurate measurements. This can be done either on site or at the manufacturer's factory.
What different types of electronic pressure gauges are there?
There are various types of electronic pressure gauges, including
1. Pressure gauge: These devices measure the pressure in liquids or gases and show it on a digital display.
2. Pressure transmitter: These devices measure the pressure and convert it into an electrical signal that can be sent to a control system or other devices.
3. Pressure sensors: These small devices are often used in industrial plants and measure the pressure in pipes or containers. You can monitor the pressure in real time and trigger alarms if necessary.
4. Barometer: These devices are mainly used to measure atmospheric pressure. They are often found in weather stations and airplanes.
5. Differential pressure gauge: These devices measure the pressure difference between two points and can be used in heating, ventilation and air conditioning systems to monitor the air flow.
6. Vacuum meter: These devices measure the pressure in a vacuum and are often used in scientific or industrial applications.
This list is not exhaustive, as there are other specialized pressure gauges that have been developed for specific applications.
1. Pressure gauge: These devices measure the pressure in liquids or gases and show it on a digital display.
2. Pressure transmitter: These devices measure the pressure and convert it into an electrical signal that can be sent to a control system or other devices.
3. Pressure sensors: These small devices are often used in industrial plants and measure the pressure in pipes or containers. You can monitor the pressure in real time and trigger alarms if necessary.
4. Barometer: These devices are mainly used to measure atmospheric pressure. They are often found in weather stations and airplanes.
5. Differential pressure gauge: These devices measure the pressure difference between two points and can be used in heating, ventilation and air conditioning systems to monitor the air flow.
6. Vacuum meter: These devices measure the pressure in a vacuum and are often used in scientific or industrial applications.
This list is not exhaustive, as there are other specialized pressure gauges that have been developed for specific applications.
How accurate are electronic pressure gauges compared to mechanical ones?
Electronic pressure gauges are more accurate and precise than mechanical pressure gauges. They use sensors and electronic circuits to measure and display the pressure, while mechanical pressure gauges are based on mechanical components such as diaphragms, springs and pointers.
Electronic pressure gauges offer greater accuracy and resolution as they have digital displays and the measured values can be processed directly electronically. They can also offer automatic zero calibration and digital storage of measured values.
Mechanical pressure gauges, on the other hand, may be less accurate and have limited resolution because they rely on mechanical components that are susceptible to wear and deformation. They also require regular calibration and maintenance to maintain their accuracy.
Overall, electronic pressure gauges offer better performance and reliability, especially in demanding applications where high precision is required. However, they are generally more expensive than mechanical pressure gauges.
Electronic pressure gauges offer greater accuracy and resolution as they have digital displays and the measured values can be processed directly electronically. They can also offer automatic zero calibration and digital storage of measured values.
Mechanical pressure gauges, on the other hand, may be less accurate and have limited resolution because they rely on mechanical components that are susceptible to wear and deformation. They also require regular calibration and maintenance to maintain their accuracy.
Overall, electronic pressure gauges offer better performance and reliability, especially in demanding applications where high precision is required. However, they are generally more expensive than mechanical pressure gauges.
What areas of application do electronic pressure gauges have?
Electronic pressure gauges are used in various areas of application. Some of them are:
1. Industry: Electronic pressure gauges are used in industry to monitor the pressure in various processes and systems. This can be the case in the chemical industry, food production, pharmaceuticals, the oil and gas industry and many other sectors.
2. vehicle industry: Electronic pressure gauges are used in vehicles to monitor the pressure in tires, air conditioning systems, brake lines and other systems.
3. Medical devices: Electronic pressure measuring devices are also used in medicine, for example to monitor blood pressure, ventilation or other medical devices.
4. Environmental monitoring: Electronic pressure gauges are used in environmental monitoring to monitor the pressure in water or gas pipes and detect possible leaks or problems.
5. Research and development: Electronic pressure gauges are used in scientific research projects to measure and monitor the pressure in various experiments.
This list is not exhaustive, as electronic pressure gauges can be used in many other areas in which pressure plays an important role.
1. Industry: Electronic pressure gauges are used in industry to monitor the pressure in various processes and systems. This can be the case in the chemical industry, food production, pharmaceuticals, the oil and gas industry and many other sectors.
2. vehicle industry: Electronic pressure gauges are used in vehicles to monitor the pressure in tires, air conditioning systems, brake lines and other systems.
3. Medical devices: Electronic pressure measuring devices are also used in medicine, for example to monitor blood pressure, ventilation or other medical devices.
4. Environmental monitoring: Electronic pressure gauges are used in environmental monitoring to monitor the pressure in water or gas pipes and detect possible leaks or problems.
5. Research and development: Electronic pressure gauges are used in scientific research projects to measure and monitor the pressure in various experiments.
This list is not exhaustive, as electronic pressure gauges can be used in many other areas in which pressure plays an important role.
How are electronic pressure gauges calibrated and checked?
Electronic pressure gauges are usually calibrated and checked using special calibration equipment. They are compared with known reference pressures to ensure that they provide accurate measurement results.
The calibration process may vary depending on the type of pressure measuring device. With mechanical pressure gauges, a test pump is often used to generate the desired pressure. The electronic pressure gauge is then connected to the pump and the displayed pressure is compared with the reference pressure.
With digital pressure measuring devices, calibration can be carried out via an interface such as USB or Bluetooth. The device is connected to a computer and linked to calibration software. The software generates the reference pressure and compares it with the values displayed on the pressure gauge.
It is important that calibration is carried out by trained personnel to ensure accurate and reliable results. Calibration should be carried out regularly to ensure that the pressure measuring device continues to provide correct measurements.
The calibration process may vary depending on the type of pressure measuring device. With mechanical pressure gauges, a test pump is often used to generate the desired pressure. The electronic pressure gauge is then connected to the pump and the displayed pressure is compared with the reference pressure.
With digital pressure measuring devices, calibration can be carried out via an interface such as USB or Bluetooth. The device is connected to a computer and linked to calibration software. The software generates the reference pressure and compares it with the values displayed on the pressure gauge.
It is important that calibration is carried out by trained personnel to ensure accurate and reliable results. Calibration should be carried out regularly to ensure that the pressure measuring device continues to provide correct measurements.
What additional functions can electronic pressure gauges have?
Electronic pressure gauges can have a variety of additional functions. Here are some examples:
1. Data storage: Some devices can save print data so that it can be checked and analyzed later. This is particularly useful for recognizing trends and changes in pressure over a certain period of time.
2. Data output: Some devices can send print data to a computer or other device via an interface (e.g. USB or Bluetooth). This enables simple data transfer and analysis.
3. Alarm functions: Some devices can be set to trigger an alarm if the pressure exceeds or falls below a certain threshold value. This can help to identify potential problems or dangers at an early stage.
4. Automatic zeroing: Some devices can be automatically set to zero to ensure that the measured value is correct and no deviations occur due to zero errors.
5. Unit conversion: Some devices can display the pressure in different units, e.g. psi, bar, Pascal, etc. This makes it easier to use the device in different applications or countries.
6. Backlight: Some devices have a backlight that makes the display easier to read, especially in poor lighting conditions.
7. Calibration function: Some devices have a built-in calibration function that allows the user to regularly calibrate the device to ensure accurate measurement.
8. Pressure limiting function: Some devices may be equipped with a pressure limiting function that prevents the pressure from rising above a certain threshold value. This can be useful to prevent damage to devices or systems.
It is important to note that not all electronic pressure gauges have these additional functions. The available functions may vary depending on the manufacturer, model and application.
1. Data storage: Some devices can save print data so that it can be checked and analyzed later. This is particularly useful for recognizing trends and changes in pressure over a certain period of time.
2. Data output: Some devices can send print data to a computer or other device via an interface (e.g. USB or Bluetooth). This enables simple data transfer and analysis.
3. Alarm functions: Some devices can be set to trigger an alarm if the pressure exceeds or falls below a certain threshold value. This can help to identify potential problems or dangers at an early stage.
4. Automatic zeroing: Some devices can be automatically set to zero to ensure that the measured value is correct and no deviations occur due to zero errors.
5. Unit conversion: Some devices can display the pressure in different units, e.g. psi, bar, Pascal, etc. This makes it easier to use the device in different applications or countries.
6. Backlight: Some devices have a backlight that makes the display easier to read, especially in poor lighting conditions.
7. Calibration function: Some devices have a built-in calibration function that allows the user to regularly calibrate the device to ensure accurate measurement.
8. Pressure limiting function: Some devices may be equipped with a pressure limiting function that prevents the pressure from rising above a certain threshold value. This can be useful to prevent damage to devices or systems.
It is important to note that not all electronic pressure gauges have these additional functions. The available functions may vary depending on the manufacturer, model and application.
Which manufacturers offer high-quality electronic pressure gauges?
There are various manufacturers who offer high-quality electronic pressure gauges. Some of them are:
1. Endress+Hauser
2. WIKA
3. Siemens
4. ABB
5. Yokogawa
6. Honeywell
7. GE Measurement & Control Solutions
8. Emerson
9. Keller AG for pressure measurement technology
10. BD Sensors
These manufacturers are known for their reliable and precise pressure gauges and are used in various branches of industry. It is advisable to find out about the specific requirements and needs in order to find the most suitable manufacturer.
1. Endress+Hauser
2. WIKA
3. Siemens
4. ABB
5. Yokogawa
6. Honeywell
7. GE Measurement & Control Solutions
8. Emerson
9. Keller AG for pressure measurement technology
10. BD Sensors
These manufacturers are known for their reliable and precise pressure gauges and are used in various branches of industry. It is advisable to find out about the specific requirements and needs in order to find the most suitable manufacturer.