Water plant level gauges are mainly used for pressure input level gauges and ultrasonic level gauges. Generally speaking, pressure level gauges are mainly used to measure the liquid level of suction wells and clean water tanks, as well as the liquid level of structures that store relatively static and non-corrosive liquids. Ultrasonic liquid level gauge is used to measure and store the liquid level of certain corrosive liquid structures. It is mainly used in storage tanks, wastewater recovery tanks and sludge tanks.

PressureSubmersible Level TransmitterIt is a liquid level measuring instrument that converts static pressure signals into electrical signals, and then converts them into standard electrical signals through liquid temperature compensation and linear correction. It has stable working performance, high measurement accuracy, long service life, strong anti-electromagnetic interference ability and low power consumption. However, since such instruments require direct input of the measurement medium, uniform density and non-corrosiveness are required. At the same time, because the probe is easily clogged, the probe needs to be cleaned in time. If the cleaning is not in place, the measurement accuracy and service life of the submersible liquid level meter will be affected.

Ultrasonic input liquid level gauge is a liquid level gauge in which an ultrasonic sensor emits and receives ultrasonic waves under the control of a microprocessor. The liquid level data is calculated based on s=ct/2 and h=H-s, because the propagation speed of sound waves in the air remains unchanged. The advantage is that the instrument is a non-contact instrument and can be used to measure corrosive media. It has high measurement accuracy, long service life, stable and reliable performance, and easy maintenance. However, attention should be paid to the impact of the environment on the equipment. For example, dust and temperature will affect the measurement accuracy, and the ability to resist electromagnetic interference is weak; the power consumption is greater than that of the pressure instrument; a large number of bubbles and suspended matter cannot be generated in the liquid being measured. For example, when stirring the chemical storage tank, try to avoid generating a large number of bubbles, which will affect the measurement accuracy.

float level gauge.

Advantages: simple structure, easy installation, simple maintenance, corrosion resistance. It is suitable for measuring the liquid level of media in sewage treatment and various open or pressure vessels, especially the liquid level measurement of underground pools and water tanks. The magnetic float level gauge is made of stainless steel or anti-corrosion materials and has explosion-proof performance.

Disadvantages: solid impurities and magnetic impurities enter, causing obstruction to the float and weakening the buoyancy. There are great restrictions on the shape and structure of the container; it is not suitable for highly corrosive and dangerous media.

submersible level gauge.

Advantages: The sensor has no mechanical moving parts, has a simple and reliable structure; high accuracy; low power consumption at the detection end and fast dynamic response; easy maintenance and long service life.

Disadvantages: The sensor seal is easy to leak, and the unstable dielectric constant of the liquid being measured will cause errors.

The differential pressure level transmitter is an electrical component that measures the difference between high and low pressure and then converts it into a current signal by a conversion component and transmits it to the control room. Differential pressure level gauge is mainly used for liquid level measurement in closed pressure vessels. The size of the differential pressure also represents the size of the liquid level. Use a differential pressure meter to measure the differential pressure between the gas and liquid phases to determine the liquid level.