Taking an intelligent look at what is inside your tank

February 2001 Level Measurement & Control

All it takes for petrol stations to measure the level of petrol in a tank accurately is the kind of intelligence built into the head of every Optilevel tank gauging system from Liquid Automation Systems.

Thanks to a microprocessor inside the head of the Optilevel probe, liquid level data is derived from the primary physical measurements. The system then calculates the tank volume based on this data either externally or by comparison with a calibration table stored in the processor electronics (capacitive comparison method.) The result is that low-cost external controllers can be used. The Optilevel probe can also be interfaced to a PC or fuel island terminal.

The Optilevel's HLS sensor's advanced technological design ensures that measurements are not affected by properties such as density or dielectric constant, electric resistance, additives, dirt deposits, submersible pumps, foam, vapour, sediment or surface turbulence. The electronics are located in the probe's head so that it can be exchanged in minutes without having to remove the probe. It can also be done during filling.

Optilevel offers many possible configurations to form an economical system: from low-cost Optilevel displays to high-performance Optilevel controllers 104, from direct modem or fuel terminal connections to certified EPSI and IFSF-LON standard interfaces. In fact, Optilevel is the first gauging system worldwide to comply with the latter standard (International Forecourt Standard Forum LON).

The compact Sensor head is tight and remains fully functional even if the tank containment sumps are permanently flooded. Because the system does not have any sensitive mechanical parts that can bend, floats than can become clogged or electronics that are located in the tank, it is robust.

Further reading:

Level measurement of an acid dosing tank at a WWTP
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Ferric chloride and other acids are essential chemical substances in water and wastewater treatment. To control the dosing of acid solutions, an Australian wastewater treatment plant uses a special container to store, mix and add these chemicals. The company opted in favour of KROHNE’s OPTIWAVE 1540 radar level transmitter

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Level measurement of leachate from sewage sludge humification
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A municipal utility in eastern Germany operates a state-of-the-art wastewater treatment plant with sustainable sludge treatment. The ultrasonic signal was being partially deflected by the wind, leading to frequent false measurements and inefficient process workflows. The problem was solved by replaced the ultrasonic level sensor with KROHNE’s OPTIWAVE 1540 non-contact radar.

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Groundbreaking measurement system
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Berthold Technologies has launched the LoopSeries LB 430, an innovative, industry-leading measurement system designed to enhance operational efficiency with advanced level, density, and level switch capabilities.

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Level measurement of a water sump at a sewage treatment plant
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A major city council in South East Queensland, Australia maintains and operates a wastewater treatment plant (WWTP) for municipal, industrial and agricultural wastewater. Due to the risk of flooding, the water sump must be continuously monitored. The solution is KROHNE’s OPTIWAVE 1540 radar level transmitter.

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Simplicity in measurement
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Endress+Hauser’s new 80 GHz compact radar range is designed to help customers reach their compliance targets through simple yet efficient measurement solutions.

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Case History 196: Unstable condensate level control.
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The operators in a petrochemical refinery were having great trouble in trying to stabilise the condensate level in a vessel, and this was adversely affecting other loops downstream. Several unsuccessful attempts had been made to retune the controller.

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Non-contact level measurement for hygienic and industrial applications
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The LW2720 radar level sensor from ifm sets new benchmarks for speed and accuracy.

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Level measurement in oil storage
VEGA Controls SA Level Measurement & Control
Measuring the level of crude oil in storage is essential for safe and efficient operations. VEGA offers solutions that effectively address the challenges, ensuring precise and consistent level measurements in crude oil storage facilities. VEGA’s sensors offer reliable data on the volume, level and pressure of all types of media. Accurate level measurement is complicated by crude oil thermal expansion properties, particularly in lighter oil grades.

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Cloud-based inventory management
Endress+Hauser South Africa Level Measurement & Control
Netilion is an award-winning cloud-based IIoT ecosystem designed for industrial processes. It connects the physical and digital worlds to send valuable information from the field straight to your phone, tablet or other device.

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Smart solutions for tabletting
VEGA Controls SA Level Measurement & Control
The manufacturing of pharmaceuticals is considered to be one of the most challenging production environments. Pharmaceutical manufacturers across the globe have opted for VEGA sensors in their production facilities.

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