Level Meter Market Status and Trends

During the “10th Five-Year Plan” period, about 75,000 to 80,000 units are needed each year. This is a big market and the competition is fierce. There are numerous domestic level instrument manufacturers, but most of them are products with low technical content and low prices. There are many sales units but the value is not high. Most modern high-end instrumentation is imported. In particular, the level instruments used in large-scale enterprises are basically imported instruments. Even pressure or differential pressure level gauges use pressure or differential pressure transmitters from imported or joint ventures. Therefore, the development and production of high-end advanced level instruments are still the key to occupying the domestic level instrument market. The following is a detailed analysis of the market trends for various level meters.

The market trend of the level switch The level switch is a large quantity, a low value product, and there is a liquid level switch and a level switch. At present, the leading product of liquid level switch is float level switch, followed by tuning fork type and capacitive liquid level switch. This trend will not change much in a long time in the future. However, with the improvement of the management level of enterprises, not only the price of the instrument itself is low, but also the installation is simple, the reliability is high, and the maintenance amount is small. Therefore, the market share of RF admittance (capacitive) and ultrasonic level switches will continue to increase. Because of the simple installation of radio frequency admittance level switch, no moving parts, high reliability, small maintenance, and better than the float switch in pressure and corrosion resistance. Ultrasonic level switches are non-contact measurements, and their superiority is obvious. As their own manufacturing prices continue to decrease, they will also occupy a considerable share of the market.

The solid level switch is currently mostly blocked in rotation, followed by tuning fork and capacitance. However, due to the continuous rotation of the rotary level switch, the reliability is low. For the same reason, the market share of RF admittance and ultrasonic level switch will increase significantly. In particular, the RF admittance level switch is the best type for measuring solid materials at this stage.

The market trend of the liquid level gauge The application of the liquid level gauge is very different, so the variety is also numerous. In the production process, the detection of liquid level in various types of tower stills is still based on pressure and differential pressure transmitters. In addition to its own cost-effectiveness and certain advantages, there are also customary problems in design and application. Followed by magnetic float type, buoyancy type, capacitive level gauge also has a considerable amount of application. With the development of technology, the use of magnetostrictive, ultrasonic and RF admittance level gauges will increase rapidly, and the proportion of pressure (differential pressure) level gauges will decrease. According to the different media and field conditions, the advantages of various level gauges will form a diversified situation.

Because of its large volume, tank storage tanks require high accuracy of level gauges. In the past, most of them used float steel belt level gauges. Servo and static pressure models also had a certain amount of application. However, whether it is a float strip, servo or hydrostatic level gauge, it is not the best way to measure the tank level in the tank area. Floater strip type liquid level gauge is complicated to install and has low reliability; hydrostatic level gauge is greatly affected by medium density and temperature, in order to eliminate these effects, a complete set of static pressure measurement system is also very expensive; servo The level gauge has high accuracy, but due to its mechanical transmission mechanism, it will inevitably bring about the problem of wear, and at the same time the price is also high. Since the 1990s, radar level gauges have entered the market. Due to their high accuracy, high reliability, and ease of use, the amount of the radar used in the tank area has rapidly increased, making it the preferred instrument for tank level in the last decade. In recent years, magnetostrictive level gauges have risen rapidly. Due to their high accuracy, high stability, high reliability, and long lifespan, they are more suitable for tank level measurement in tanks. The application volume will also rapidly increase, and will gradually increase with radar. The level gauge is evenly divided. The optical fiber level gauge can be used for on-site powerless detection and has good safety. This is its outstanding advantage. The disadvantage is that there are still many mechanical transmission components, the failure rate will increase, and the installation will be more complicated. Ultrasonic level gauges are slightly less accurate, but they are simple to install and affordable, and therefore have a place in the tank area.

Environmental protection includes the sewage treatment industry. In recent years, it has developed rapidly and the required level gauge has continuously increased.

Sewage treatment, ponds, and water tanks used to be mostly hydrostatic level gauges. With the continuous decrease in the price of ultrasonic level gauges, they will be of great use in the environmental protection industry, especially in mud level measurement and mud layer measurement. Show its superiority.

The market trend for level gauges Solid material level measurement has always been a problem, and it is difficult to have an accurate and reliable best measurement method. In the past, the hammer type was the main type. This type of mechanical instrument has many problems and its service life is short. In recent years, radio frequency admittance, ultrasonic, radar, and laser level meters have shown their own characteristics in the measurement of solid materials, so that the measurement level of the solid material level has been significantly improved. At present, relative to the comparison, the radio frequency admittance level meter is more adaptable and the price is lower. The advantages of non-contact measurement are fully reflected in ultrasonic level gauges where the amount of dust is not large. These two instruments will be strong competitors for the solid material measurement market.

The market trend interface measurement of the interface instrument is relatively small, but it is important. In the past, there were more floater and magnetic floaters. There are also pressure-type applications, but the effect is not good. Nuclear radiation has a certain application. The RF admittance level measurement interface has certain advantages but its accuracy is not high. The magnetostrictive liquid level gauge has advantages over the above types of interface instruments at the measurement interface. It not only has high reliability, but also has little influence on medium change, and it also has high accuracy. Therefore, in the future, the interface measurement will be divided into magnetic flux, buoyancy, radio frequency admittance, and magnetostrictive level gauges, and the magnetostrictive system will occupy more shares.

Although there are many types of existing level meters, some level measurements cannot be resolved. With the development of industry, there will be new and higher requirements for level meters. Therefore, continuously improving the technical level of existing level meters and developing new level meters will be an eternal subject that meets the needs of the market.