Interkama 2001

Radar level sensor offers HART and Profibus outputs

As smooth as the vessel wall, and without gaps or cavities, the VEGAPULS 43 radar sensor has been specially designed for the pharmaceutical and food processing industries. This non-contact level sensor, with an accuracy of 0.05%, behaves the same as the vessel wall during CIP and SIP. Therefore, it has been accepted by EHEDG, FDA and 3A. Only a small TFM-PTFE surface, with a high quality finish (Ra < 0.8) is inside the vessel.

The sensor emits focused, low power radar pulses (0,01µW/cm2) via this surface towards the product being measured. The pulses are reflected off the product and return to the sensor as echoes. Intelligent and fast electronics accurately analyse these echoes.

The electronics calculates the product level, using the running time of the radar pulses, and output the continuous level as a 4-20mA HART or Profibus PA signal.

The sensor is suited to a wide range of applications and is virtually unaffected by pressures (-1 to +40 bar) and temperatures (-40 to +150°C).

• Vega
  e120@industrialnetworking.co.uk