At present, more and more external liquid level products are used in the tank farm technical transformation projects in the petrochemical field. According to the situation reflected by the design institute and the owner, the instrument performance is stable and the cost is saved. The comprehensive price performance ratio is also good. What are the advantages of the level gauge in the external liquid level measurement products?

No secondary opening on the tank wall, simple installation and cost saving

The external ultrasonic level gauge is actually an instrument for measuring the medium level inside the container from the outside of the container. It measures the liquid level according to the echo ranging principle of sonar. It can be said to be a completely isolated level gauge. In addition, the external ultrasonic level gauge is different from the ordinary level gauge in terms of measurement method. When the ordinary level gauge is installed, it must have a hole on the wall of the container to allow the instrument to measure inside the container. The biggest feature of the external level gauge is that it does not need to have a hole on the wall of the container, that is, the height of the liquid level inside the container can be measured outside the container.

Extremely high security

Since the external ultrasonic level gauge is not in contact with the measured liquid in the container or the gaseous medium in the container, it is widely used in the special harsh environment such as strong corrosion, strong toxicity, high pressure, flammable explosion, high purity and no bacteria infection. The instrument itself and the measuring probe are installed outside the container, so they are particularly suitable for harsh industrial environments, especially for measuring highly toxic, highly corrosive, high pressure, flammable and explosive, volatile and easy to leak liquids. Moreover, the engineers do not have the risk of being invaded by corrosive liquids and gases when installing and maintaining the instrument. In addition, even if the instrument is damaged or repaired, there is no hidden danger of dangerous gas leakage, and environmental pollution will not be caused. Therefore, the external level gauge is a genuine green environmental protection instrument.

Reliable performance and long service life.

There are no mechanical moving parts in the measuring head and instrument, and they are strictly sealed and isolated from the outside, without wear or corrosion, reliable and durable.

The automatic calibration function of the instrument reduces the maintenance time of the instrument engineer.

The external ultrasonic level gauge has the self calibration function, which overcomes the problem that the accuracy of the traditional level gauge decreases after a long time of use.

Self diagnosis function

The external ultrasonic liquid level gauge has the function of diagnosing its own working state and the function of hardware diagnosis, which increases the reliability and stability of the liquid level gauge.

Local display and remote transmission function

The external level gauge can not only display the liquid level value on site, but also transmit it to the control room through the signal line.