Benefits of contactless level measurement

Whether radar or ultrasonic - in both cases, OCTOGON level gauges are a proven and cost-saving solution for measuring levels as quickly and easily as possible. Our measuring devices are available in different versions that can be easily integrated into your applications. OCTOGON is your reliable partner when it comes to measuring electronics - contact us for a quote!

Continuous level measurement with level sensors

In continuous level measurement, the level of a medium in a tank or silo is detected with the help of different measuring methods and converted into an electronic signal. The level signal is either displayed directly on site or incorporated into a process control or management system. Typical applications for continuous level measurement are process tanks, storage tanks or silos in the process industry.

Level measurement with radar

Level measurement with radarIn continuous non-contact level measurement with radar, the sensor sends microwave signals towards the medium from above. The surface of the medium reflects the signals back in the direction of the sensor. Using the received microwave signals, the sensor determines the distance to the product surface and calculates the level from it. Liquids and solids are commonly measured with this measuring technique.

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Level measurement with ultrasonic

Level measurement with ultrasonicIn non-contact ultrasonic level measurement, the sensor emits ultrasonic pulses in the direction of the medium, which then reflects them back. The elapsed time from emission to reception of the signals is proportional to the level in the tank. Ultrasonic sensors are ideal for simple standard applications, both for liquids and for solids.

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Level sensors for every requirement

In all industrial processes in which tanks, silos or storage containers are used, it is necessary to know the fill level of the stored goods or at least to recognise specified fill levels (full or empty tank). This task is performed by level sensors. The fill level sensors continuously measure the fill level. They are used to trigger an alarm or a specific action when a certain fill level is reached. There are various technologies for level measurement, with radar and ultrasound being the most commonly used methods. The measured values are converted into electronic signals. The output signal is integrated into the control loop of the process control system. Both have their advantages depending on the application.

Radar measurement technology

Radar sensors use microwave pulses to precisely determine the level of liquids and solids. This technology is particularly robust and insensitive to difficult environmental conditions such as dust, vapour or extreme temperatures. Thanks to their high accuracy and reliability, radar sensors are ideal for applications in demanding industries, including the chemical, petrochemical and food industries.

It is measured in:

  • Liquids
  • Bulk solids
  • Powders
  • Pasty media

Benefits of radar sensors

  • High measurement accuracy and reliability in wide temperature ranges
  • Better signal focussing, which leads to accurate and simple measurement
  • Insensitive to environmental influences (temperature, pressure, vacuum and contamination)
  • Compact design allows easy integration into various applications
  • Suitable for aggressive and corrosive media
  • Low energy consumption
  • Radar sensors are accurate even at large measuring distances and do not require calibration
  • Low maintenance and durable

Ultrasonic measurement technology

Ultrasonic sensors use sound waves to measure the fill level in containers. This technology offers a cost-effective and easy-to-install solution for many standard applications. They are ideal for measuring liquids and bulk solids in open or closed containers and are known for their ease of use and maintenance.

It is measured in:

  • Liquids
  • Bulk solids
  • Powders
  • Pasty media

Benefits of ultrasonic sensors

  • Attractive prices and proven technology
  • Devices work reliably in their target applications
  • Insensitive to environmental influences
  • Suitable for abrasive and aggressive media thanks to non-contact measurement
  • Simple maintenance and operation

Level sensor selection

The choice between radar and ultrasonic sensors depends on the specific requirements of your application. Radar sensors offer the highest precision and reliability under difficult conditions, while ultrasonic sensors are a cost-effective and easy-to-use solution for many standard applications. Our team of experts will be happy to help you select the right sensor for your needs.