SH-3151RH

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Float level sensors are devices used to measure the level of a liquid inside a tank or enclosed space. The SH-3151RH is one such float level sensor which features a built-in temperature sensor, as well as dual relays for output signal for adjustable set-points. Here we will discuss the application fields of the SH-3151RH, as well as its working principle.

Application Fields

The SH-3151RH is known for its high accuracy level precision and ease of installation. As such, it is used in a number of applications, including water and oil storage tanks, brewing, water treatment, petrochemical, energy industry and other process control systems.

The sensor is also useful when it comes to meeting safety and regulatory requirements. In addition to monitoring above and/or below levels, the sensor is also capable of monitoring temperature and overfill conditions, which can help meet UST and AST safety requirements. Furthermore, the sensor can be adjusted accordingly for one or two set-points that can be used to control solenoids or alarms.

Working Principle

The SH-3151RH works on the capacitive continuous level detection principle. The level sensor housing is suspended inside the tank by a meandering tube. This tube is connected to the stainless steel electrode, which is mounted on the outside of the tank and is connected to the controller. The controller generates an AC electrical field, and the level sensor housing, together with the stainless steel, forms a capacitor. The level of the liquid inside the tank is determined by the capacitance of this capacitor, which is directly proportional to the level of the liquid.

The controller measures the capacitance and outputs a 0-10V voltage signal (4-20mA current signal) that corresponds to the corresponding liquid level. The sensor also has dual adjustable relays for two adjustable set-points. The sensor can be adjusted accordingly to control solenoids or alarms, depending on the application.

The SH-3151RH also features a built-in temperature sensor, which can be used to measure the temperature of the tank or its contents. This can help maintain a safe operating temperature in the tank. Furthermore, the sensor is also capable of monitoring the overfill condition so that the tank does not become overfilled.

Conclusion

The SH-3151RH float level sensor is a versatile and accurate device used for a wide range of applications. It uses a capacitive detection principle to measure the level of liquid in a tank, as well as temperature and overfill conditions. The sensor also features dual adjustable relays for two adjustable set-points, which can help meet UST and AST safety regulations. Overall, the SH-3151RH is a reliable and highly accurate float level sensor.

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