Why Is The Submersible Level Sensor The Industry Standard For Tank Level Monitoring ?
Submersible level sensors are the number one choice for bulk chemical providers and are also very popular with remote tank level monitoring popular because they are reliable, accurate, and easy to install. They are designed to be fully submerged in the liquid, allowing them to measure the entire liquid level in a tank without any deadband. This means they can provide a continuous and accurate measurement of the liquid level, regardless of the tank shape or size. Submersible level sensors are also suitable for use in harsh environments and can measure a wide range of liquids, including corrosive and viscous fluids.
Submersible level sensors work by measuring the weight of the liquid in a tank. The sensor typically consists body that must sink to the bottom of the tank. The submersible level sensor body consists of a circuit board inside the sensor, that measures the weight or water column of the liquid above the submersible level sensor diaphragm.
The weight of the liquid is measured by the pressure that it exerts on the submersible level sensor, which is converted into a 4-20mA signal. The 4-20mA signal is a standard industrial signal that is used to transmit data from sensors to control systems. It is a current-based signal that can be transmitted over long distances without significant loss of accuracy.
The 4-20mA signal output of the submersible level sensor can be read by a control system or a display unit. The control system can use this signal to control other equipment or processes, such as pumps, valves, or alarms. The display unit can show the liquid level in the tank, which can be useful for monitoring and troubleshooting.
When it comes to bulk chemicals, submersible level sensors are a good option because they have no moving parts and do not require programming. This eliminates the potential for mechanical failure and reduces maintenance requirements. The Levelpro 100 series submersible level sensors are also available in a variety of materials such as PVC, CPVC, PP, PVDF, and 316 stainless steel, which provides excellent chemical resistance. They are also available in different sizes and configurations to suit various applications.
Ultrasonic level sensors, on the other hand, emit high-frequency sound waves that are reflected back by the liquid surface. The time it takes for the sound wave to travel to the liquid surface and back is used to calculate the distance to the liquid surface and thus the level. However, ultrasonic sensors can have problems with foam, vapor, condensation, and turbulence, which can affect the accuracy of the measurement. These sensors are also sensitive to alignment and require a clear path to the liquid surface.
Radar level sensors operate on the principle of microwave radar and measure the time it takes for a radar signal to travel to the liquid surface and back. They are also sensitive to alignment and have issues with foam, which can affect measurement accuracy. They are typically more expensive than submersible and ultrasonic sensors.
In summary, submersible level sensors are a reliable and accurate solution for liquid level measurement, especially in harsh environments and for bulk chemicals. They are easy to install and have no moving parts, which reduces maintenance requirements. Ultrasonic and radar sensors, on the other hand, can be affected by foam, vapor, condensate, and turbulence, which can affect measurement accuracy. Additionally, submersible level sensors are less expensive than radar sensors, and ultrasonic level sensors.
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