Ultrasonic level meter is a non-contact measuring instrument, which is commonly used in water storage tanks, sewage tanks, biochemical reaction tanks, reservoirs, lakes and other occasions.

Its biggest advantage is that it uses non-contact measurement method to monitor the liquid level. Since there is no direct contact with the liquid, the failure frequency and maintenance cost are greatly reduced.

Its disadvantage is that it cannot be used in a vacuum environment because the ultrasonic signal it emits cannot be transmitted and propagated in a vacuum environment.

So, what are the types of ultrasonic level meters? According to different standards, ultrasonic level meters have different classifications. Generally speaking, ultrasonic level meters can be divided into the following types:

1. Classification by range

According to the range, ultrasonic level meters can be divided into ultrasonic level meters with multiple ranges such as 5 meters, 10 meters, and 15 meters. This form of division is mainly based on the height of the container and the liquid level of the medium, and needs to be selected according to specific working conditions. Ultrasonic level meters of different ranges are equipped with ultrasonic probes with different sound wave transmission powers. Generally, the larger the range, the greater the transmission power.

2. Classification by function

According to the function, ultrasonic level meters can be divided into standard type, anti-corrosion type, explosion-proof type (intrinsically safe type, flameproof type) and split type ultrasonic level meters.

Among them, the standard type ultrasonic level meter is the most basic type, which can also be understood as a universal type.

The anti-corrosion type ultrasonic level meter uses a probe made of PVDF material, which can ensure that the instrument can still operate reliably in corrosive liquids or corrosive environments, and will not be corroded and aged for a long time.

Explosion-proof ultrasonic level meters are relatively rare in the market, and intrinsically safe explosion-proof ultrasonic level meters are even rarer. Because the ultrasonic probe has a large transmission power, the design must meet the intrinsic safety requirements, the product cost is very high, and the price is naturally high, lacking market competitiveness.

The split type ultrasonic level meter is a device that separates the probe and the signal processing display into two independent parts. The two parts are installed in different locations to solve the problems of difficult installation, maintenance and observation in harsh, dangerous and difficult-to-observe working environments.