SQ4-A21-P

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Float, Level Sensors are a type of measurement switch that react to the level of liquids in tanks, vessels and other process containers. In this article, we will take a closer look at the application field and working principle of the SQ4-A21-P.

Introduction

The SQ4-A21-P is an economical float and level sensor. It consists of a rotating stainless steel arm with two magnetic switch points, attached to a side-mounted float. The float moves with the surface of the liquid, causing the switch points of the arm to alternate between two states. The SQ4-A21-P is available in a range of sizes, from 4 to 24 inches.

Application Field

The SQ4-A21-P is a versatile float and level sensor that can be used in a wide range of applications. It is commonly used in water treatment and industrial process control, where reliable and accurate measurement of liquid level is required. It can also be used in tanks, sumps, vessels, and other low-pressure process vessels.

In water treatment applications, the SQ4-A21-P is used to monitor reservoir, sump, and other water levels. It is also used to control the flow of chemicals and other liquids in water treatment systems. In industrial process control, it is used to monitor the levels of liquids in tanks, vessels, and other low-pressure process vessels.

The SQ4-A21-P is also suitable for use in sewage treatment, drainage systems, and marine applications. It can be used to measure the level of corrosive liquids, as well as to control the flow of water in pumps, valves, and other piping systems.

Working Principle

The SQ4-A21-P is a simple and reliable float and level sensor. The sensor consists of a stainless steel arm attached to a side-mounted float. The float moves with the surface of the liquid, causing the switch points of the arm to alternate between two states. When the switch points are in the “on” state, they close an internal switch, activating a signal. When the switch points are in the “off” state, they open the switch, deactivating the signal. The signal is then used to control other components in the system.

The SQ4-A21-P is designed to be extremely accurate, reliable, and easy to install. It has a robust construction, and requires minimal maintenance. It is also highly versatile, and can be used in a wide range of applications.

Conclusion

The SQ4-A21-P is an economical and versatile float and level sensor. It is suitable for use in a wide range of applications, including water treatment and industrial process control. It is simple and reliable, and requires minimal maintenance. The SQ4-A21-P is an ideal choice for accurate and reliable measurement of liquid level in tanks, vessels, and other process containers.

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