LST200 ABB 智能物位测量仪

LST200是ABB集团旗下的一款智能物位测量产品。

LST200的特点有：

简捷易用：LST200采用模块化设计，安装、维护和升级都很简单。

智能可靠：LST200集成了智能芯片，可以通过模块化设计为现代化数据采集方式预留接口1。

一体化变送器集成了实时回波显示和故障信息提示等多项诊断功能。

温度补偿确保可靠精度（高于+/-3mm或满量程的0.25%）。

LST200智能物位测量仪的应用场景有：

固体颗粒料仓料位测量。

液体液位测量。

粉体料位测量。

粘稠性物料的测量。

物位测量指对工业生产过程中封闭式或敞开容器中物料（固体或液位）的高度进行检测，如果是对物料高度进行连续的检测，称为连续测量；如果只对物料高度是否到达某一位置进行检测称为限位测量。完成这种测量任务的仪表叫做物位计。

LST200物位测量在现代工业生产过程中具有重要地位，通过物位测量可以确定容器中被测介质的储存量，以保证生产过程物料平衡，也为经济核算提供可靠依据。通过物位测量并加以控制可以使物位维持在规定的范围内，这对于保证产品的产量和质量，保证安全生产具有重要意义。

物位测量方法如下：

LST200直读式物位测量。用与容器相连通的玻璃管或玻璃板来显示容器中的液位高度，这种方法最原始，但仍然得到较多的应用。

压力式物位测量。根据流体静力学原理，静止介质内某一点的静压力与介质上方自由空间压力之差与该点上方的介质高度成正比，因此可以利用差压来测量物位，这种方法一般常用于液位测量。

浮力式物位测量。利用漂浮于液面上的浮子随液面变化位置，或者部分浸没于液体中的浮子所受到的浮力随液位而变化来进行物位测量。前者称为恒浮力法，后者称为变浮力法，这两种方法可用于液位或界面的测量。

LST200 ABB 智能物位测量仪

The LST200 is a smart level measurement product from the ABB Group.

LST200 features:

Simple and easy to use: The LST200 has a modular design that makes installation, maintenance and upgrade easy.

Intelligent and reliable: The LST200 integrates a smart chip and can reserve interface 1 for modern data acquisition methods through modular design.

The integrated transmitter integrates a number of diagnostic functions such as real-time echo display and fault information prompt.

Temperature compensation ensures reliable accuracy (above +/-3mm or 0.25% of full scale).

The application scenarios of LST200 intelligent level measuring instrument are:

Solid particle bin level measurement.

Liquid level measurement.

Powder level measurement.

Measurement of viscous materials.

Level measurement refers to the detection of the height of the material (solid or liquid level) in the closed or open container in the industrial production process. If the height of the material is continuously detected, it is called continuous measurement. If only the material height reaches a certain position is detected, it is called limit measurement. The instrument that performs this measuring task is called a level meter.

LST200 level measurement plays an important role in the modern industrial production process, through level measurement can determine the storage of measured media in the container, to ensure the material balance in the production process, but also provide a reliable basis for economic accounting. Through level measurement and control, the level can be maintained within the specified range, which is of great significance to ensure the output and quality of products and ensure the safety of production.

The level measurement method is as follows: 1.

LST200 direct reading level measurement. Using a glass tube or glass plate connected with the container to display the liquid level height in the container, this method is the most primitive, but it is still widely used.

Pressure level measurement. According to the principle of hydrostatics, the difference between the static pressure at a certain point in the static medium and the free space pressure above the medium is proportional to the height of the medium above the point, so the differential pressure can be used to measure the level, which is generally used for liquid level measurement.

Buoyancy level measurement. The position of the float floating on the liquid surface changes with the liquid level, or the buoyancy force of the float partially immersed in the liquid changes with the liquid level to measure the level. The former is called the constant buoyancy method, the latter is called the variable buoyancy method, and both methods can be used to measure liquid levels or interfaces.