INFO CENTER

Radar needs to be considered under the corrosion and adhesion of the medium working condition, in addition to the selection of too long guided wave radar antenna and equipment maintenance is also a need to think about the situation, intelligent radar, high frequency radar level meter can be exchanged, and guided wave radar because the length of the guide rod (cable) depends on the working condition, usually can not be exchanged, affected by this type of guided wave radar must be subject to certain limitations.

Liquid level measurement is an important link in process industry, involving production efficiency, product quality, safety and environmental protection. There are a variety of common liquid level measuring instruments on the market, of which 80GHz radar level meter and external level meter are two more popular non-contact measuring technologies. This paper introduces the working principle, technical characteristics, performance differences and application scenarios of these two instruments, analyzes their advantages and disadvantages and adaptability in different working conditions, and provides a reference basis for users to choose suitable liquid level measuring instruments according to working conditions.

Pressure transmitter is a device that converts pressure into pneumatic signal or electric signal for control and remote transmission. It can convert the physical pressure parameters such as gas and liquid sensed by the pressure measuring element sensor into standard electrical signals to supply secondary instruments such as alarm, recorder and regulator for measurement, indication and process adjustment.

The pressure transmitter calibration work is generally devided into preparation, calibration of conventional differential pressure transmitter and calibration of intelligent differential pressure transmitter.

In everyday life, when we choose something, the first thing we do is to learn about it. The liquid level meter is no exception, before choosing to fully understand it, then understand its working principle is the first step, which is the most basic thing to do. Today, we make a simple science popularization on the measurement principle of several common liquid level meters, including radar level meters.

The choice of temperature sensor is mainly based on the measurement range. When the measurement range is expected to be within the total range, a platinum resistance sensor can be selected. The narrower range usually requires the sensor to have a fairly high basic resistance in order to obtain a sufficiently large resistance change. The large enough resistance variation provided by thermistors makes these sensors ideal for narrow measurement ranges.

The measurement principle of the radar level meter is that the antenna receives the radar pulse reflected signal, and sends the reflected signal to the instrument, the microprocessor of the instrument analyzes the signal, and identifies the actual echo of the radar pulse signal on the surface of the material. When signal interference echoes happenes, what are the reasons for interference echoes?

The radar level antenna transmits a narrow microwave pulse down through the antenna. After the microwave touches the surface of the measured medium, it is reflected back to be received by the antenna system again, and the signal is transmitted to the electronic circuit and automatically converted into the level signal. What are the factors that affect the measurement accuracy of radar level meter?

When the display value of ultrasonic level meter fluctuates, we can use the following methods to figure out the problem.

At present, there are many types of radar level gauges on the market. Radar level gauges emit extremely short microwave pulses with very low energy and are transmitted and received through the antenna system. It has the advantages of stable performance, flexible use, high reliability, and easy maintenance. So when users choose radar level gauges, what factors should they pay attention to in order to choose a suitable radar level gauge? After reading the following 5 points, you will probably understand.

It is believed that many users have encountered reading fluctuations when using guided wave radar liquid level meters. Many users do not know how to solve it for a while, and some users even directly want to replace the instrument. This is really easy, but it will greatly increase the cost. We should analyze the cause of this situation, and then correct debugging can be solved

Radar level meter can be widely used in liquid and solid level measurement. Continuous level measurement of various media, even under high pressure, corrosive, hygienic or harsh conditions. Radar level meter is divided into non-contact radar level meter and contact radar (guided wave) level meter according to the different measurement purpose, material characteristics and storage tank environment.

As a kind of common liquid level measuring instrument, magnetic flap level gauge, because the measuring tube body is connected with the measured vessel, directly contact with the medium, therefore, the material of the tube body is good or bad for the service life of the magnetic flap level gauge has a direct impact.If you use stainless steel directly to measure some corrosive media, it is easy to be corroded and leakage, resulting in production accidents.

Float level gauge according to the float installed in different locations are also divided into two types of internal and external float, the so-called internal and external division refers to the float installation place, in the measured liquid container is the internal float, in the measured liquid outside the container is called external float.

Electromagnetic flow meter is the application of the principle of electromagnetic induction, according to the conductive fluid through the applied magnetic field when the electric potential generated to measure the flow of conductive fluids of an instrument, because it is high precision measurement, stable performance, long working time, so in various industries can see its figure.