LPG Level Gauges

Level gauges are devices used to measure and monitor the level of liquids, gases, and vapors, as well as the separation levels of liquid media in closed tanks.

The use of such devices allows for automation of process control and monitoring, significantly improving efficiency and safety.

Automation provides the following advantages:

• Reduces risks associated with human error: Modern instruments have multiple levels of protection against intentional distortion of sensor readings, making it easy to detect theft and underdelivery of various substances.
• Minimizes environmental risks: Installed leak monitoring sensors provide continuous tracking and promptly notify about critical situations, significantly enhancing safety.

LPG level gauges are categorized into:

• Float-type
• Ultrasonic
• Buoyancy-based
• Pneumatic

Their operating principle is based on converting the measured level into an electric current signal, which is transmitted to the control panel.

These instruments typically consist of two transducers and a communication line between them. They can be manufactured in industrial and explosion-proof versions. The measurement error is minimal, and these systems can be used to determine not only tank fill levels, but also density, volume, temperature, and mass of liquids.

Mechanical Level Gauges:

• Float-type level gauges – mechanical devices that measure the height of a floating element. They are mainly used in low-pressure liquid environments.
• Buoyancy-based level gauges – operate on the principle of buoy movement and hydrostatic pressure. They can be used in high-pressure environments and aggressive media, as well as at extremely high and low temperatures.

To track buoy movement changes due to substance level fluctuations, either mechanical or remote (electrical or pneumatic) connections are used, allowing the system to communicate with the measurement unit.

Ultrasonic LPG Level Gauges:

Ultrasonic level gauges offer high accuracy, making them suitable for aggressive, abrasive, and explosive liquids and gases. They function by measuring the travel time of an ultrasonic wave reflected from the sensor to the liquid level.