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Measuring flow rates without any obstacles: the SU Puresonic ultrasonic sensor

  • Accurate flow measurement of ultrapure water and water
  • A robust, component-free measuring pipe made of stainless steel offers high media resistance and permanent ingress resistance
  • The operating status LED signals the sensor status according to Namur NE107
  • Conclusions about the process quality are possible on the basis of the signal strength provided

Accurate measurement data even with ultrapure water

The SU Puresonic detects water flow rates with high precision at volumes up to 1000 l/min. Thanks to ultrasound technology, this also applies to ultrapure water with low conductivity as produced in reverse osmosis plants. In combination with the conductivity sensors of the LDL family, reliable quality control can be established in the filtration process.
The measuring pipe of the SU Puresonic is made of stainless steel and is free of measuring elements, seals and moving parts. This means that faults caused by damage, leaks or blockages, which can occur in mechanical systems such as impellers or turbines, or, design-related pressure drops are excluded from the outset.

Signal strength as a quality and maintenance indicator

The continuously monitored signal strength makes it possible to draw concusions about the quality of the medium or the need for maintenance. A dropping value can be an indicator of an increase in particles in the medium or deposits on the inner wall of the pipe. The signal strength is transmitted acyclically via IO-Link and thus makes it possible to schedule maintenance work or adjust the process sequence at an early stage. This guarantees a high-end product quality. This function is also implemented for conventional systems that do not yet have IO-Link. If the signal strength falls below a predefined level, the device status will change and the sensor will signal this via the diagnostic output and the operating status LED.