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What is the standard output signal of commonly used transmitters?

Industrial production often use transmitters, such as pressure transmitters, temperature transmitters, liquid level transmitters, etc., but the standard signal of these transmitter class is clear? Pressure transmitter class standard signal transmission why is 4 ~ 20mA, rather than 0 ~ 20mA?

What is the standard output signal of commonly used transmitters?

Selection of level measuring instruments for coal ash silos and coal ash hoppers in power plants

In the process of burning coal in thermal power plants, a large amount of coal ash is generated. This coal ash is usually collected in coal ash bins and coal ash hoppers. In order to avoid the stored coal ash from bubbling up the tank, it is quite necessary to detect and control the height of the coal ash material level.

Selection of level measuring instruments for coal ash silos and coal ash hoppers in power plants

How to detect the good and bad of ultrasonic transducer in the process of overhaul.

Ultrasonic transducer, also known as ultrasonic probe, is a key component of the ultrasonic level meter, and it is not too much to say that it is the "heart" of the ultrasonic level meter. The ultrasonic transducer converts high-frequency high-voltage power into high-frequency mechanical vibration, and the maximum power output can reach several kilowatts, so the stability and power output of the ultrasonic transducer plays a very important role in the performance of the ultrasonic level transmitter.

How to detect the good and bad of ultrasonic transducer in the process of overhaul.

Liquid level alarm switch wiring method and precautions introduction!

Liquid level alarm switch is widely used in water conservancy, chemical, environmental protection, food and pharmaceutical industries, etc. It is a liquid level measuring instrument specially designed for vessels, tanks and various pipelines.

Liquid level alarm switch wiring method and precautions introduction!

Analysis of the working principle and advantages and disadvantages of guided wave type radar level meter!

The guided wave radar level meter has a different working principle compared to other radar level meters and has its own advantages and shortcomings. It is very important for users, especially purchasers, to know this information for proper selection. Below, the principle and advantages and disadvantages of the guide wave radar level meter are described below.

Analysis of the working principle and advantages and disadvantages of guided wave type radar level meter!

From the concept and principle of RF conductivity to see how its correct selection

With the development of RF level detection technology, capacitive products have gradually developed into conductive products, which can be used to measure the level of media in containers under different working conditions. However, from the communication with users, many users still know little about the principle of RF Admittance and RF Admittance level switch, and they do not know how to select the correct type.

From the concept and principle of RF conductivity to see how its correct selection

Application occasions of mini tuning fork switch

The mini tuning fork switch, also known as the compact tuning fork level switch, is relative to the tuning fork level switch. At present, small tuning fork switches mainly include compact tuning fork level switches and high-temperature compact tuning fork level switches. So why develop small tuning fork switch when there is tuning fork switch?

Application occasions of mini tuning fork switch

Two-wire system and its advantages

"Wire system" is a term often encountered in the automation industry, referring to the number of emergency pull-wire switches used for instrument power supply and standard signal transmission. The title of multi-wire system came into being after the birth of two-wire transmitter. So, what is the two-tier system? What are its advantages?

Two-wire system and its advantages

The main uses and installation and maintenance of magnetic flap level meter with remote transmission.

Remote magnetic flap level gauge is a kind of liquid level measuring instrument which is composed of reed tube remote transmitter and magnetic flap level meter combined together. It transmits the level signal from the site to the machine room or control room in the form of 4-20mA current, so as to grasp the level of the tank remotely and facilitate the purpose of real-time control. In order to better understand the remote magnetic flap level meter, this paper introduces the main uses and daily maintenance of the remote magnetic flap level meter as follows.

The main uses and installation and maintenance of magnetic flap level meter with remote transmission.

The working principle and measuring process of radar level gauge are summarized.

There are two main purposes of material level measurement: first, to determine the quantity of materials in the container through material vibrating fork level measurement to ensure the continuous supply of materials required in all stages of production; The second is to know whether the material level is within the specified range through material level measurement, so as to ensure the normal production process and ensure the product quality, output and production safety.

The working principle and measuring process of radar level gauge are summarized.

Advantages and uses of plastic type magnetic flap level meter!

The plastic type magnetic flap level meter is a commonly used anti-corrosion type magnetic flap level meter. With the same range, the weight of plastic flap level meter is lighter, which certainly makes the installation on site easier. So, in addition to the weight advantage, what are the other advantages of the plastic type magnetic flap level gauge? What are the main applications?

Advantages and uses of plastic type magnetic flap level meter!

High temperature and high pressure magnetic flap level meter demagnetization factors and solutions

Magnetic flap level meter is a common liquid level measuring instrument based on the principle of buoyancy and magnetic coupling principle. It has a wide range of applications in industrial production. However, due to the complexity of the actual application conditions, a variety of models of different functions of the magnetic flap level gauge to adapt to it.

High temperature and high pressure magnetic flap level meter demagnetization factors and solutions

How to install the float level switch correctly and what to pay attention to!

Float level meter is a simple installation and reliable continuous level measurement instrument, widely used in chemical, metallurgical, electric power, paper making, food and industrial wastewater treatment industries, for measuring the level of water in water towers, pools, tanks, water collection pits and industrial tanks and other media level measurement.

How to install the float level switch correctly and what to pay attention to!

Introduction to the concepts and main roles related to level measurement.

Level measurement plays a very important role in automated production, ensuring the normal and efficient operation of production. However, many users are not clear about what is level, level measurement instruments and the specific role of level measurement. In order to help users to have a deeper understanding of molten metal level measurement, this article introduces the concepts and main roles of level measurement as follows.

Introduction to the concepts and main roles related to level measurement.

What checks should be done after the installation of the radar level meter before it is powered on and put into use!

What checks should be done after the installation of the radar level meter before it is powered on and put into use!

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