RKC Level Gauges - Advantages and Disadvantages of Several Common Level Gauges Introduction

Create Date: 2024-8-30 12:03:23|Source: RKC

1. Float level gauge is an instrument that relies on the principle of buoyancy to measure the liquid level. Usually by means of a float in conjunction with a scale, the observer can visually read the height of the liquid level.

Advantages: fast and intuitive reading; Low price; Easy to install.

Disadvantages: low accuracy; The installation is limited by the shape and structure of the container; It is not suitable for use in corrosive and dangerous media; Remote transmission and adjustment are not possible.

The 2.Ci flap level gauge relies on a magnetic float installed inside the container to drive the magnetic flap outside the container to flip to achieve signal conversion and liquid level display.

Advantages: fast and intuitive reading; The price is lower; It can realize remote transmission and adjustment.

Disadvantages: low accuracy; Complex installation; range limitations; The installation volume is relatively large.

3. The capacitive liquid level sensor uses the change of capacitance between the two plates of the capacitor to measure the level of the liquid level.

Advantages: small size, easy to achieve remote transmission and adjustment; Suitable for corrosive and high-pressure media.

Disadvantages: The dielectric constant of the medium and the upper part of the liquid level must be kept constant in order to be accurately measured; The measuring range is limited by the length of the metal rod; There are high requirements for container materials; The medium to be measured is electrically conductive.

4. The radar level gauge converts the liquid/object surface position by detecting the information reflected by the liquid surface of the microwave (electromagnetic wave with a very short wavelength) emitted by itself.

Advantages: It can measure the liquid level in the pressure vessel, and can ignore the influence of high temperature, high pressure, fouling and condensate; High accuracy; No direct contact with the medium; Strong corrosion resistance; Can be used in a vacuum environment; Easy to install.

Cons: Expensive; Affected by container geometry and material properties; It is susceptible to electromagnetic interference.

5. The ultrasonic level gauge converts the liquid/object surface position by detecting the signal after the ultrasonic wave emitted by itself is reflected by the liquid surface.

Advantages: no direct contact with the medium; Strong corrosion resistance; High accuracy; Easy to install.

Cons: The price is relatively expensive; Ultrasonic waves are greatly affected by the gas composition of the transmission medium; It is greatly affected by the geometric structure characteristics of the container; Not suitable for media with bubbles or suspended solids; It is susceptible to electromagnetic interference.

RKC Level Gauges - Advantages and Disadvantages of Several Common Level Gauges Introduction

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