Appliances in liquids 

• There are used sensors with frequencies between 30 and 70 kHz for the measurement in liquids. They work independent from media characteristics and are perfect for the area water / waste water and for the measuring of low acids and leach. Also appliances in the gas – explosive – area can be equipped with these sensors

Appliances in bulk solids 

• For the measurement of bulk solids sensors with a frequency between 10 and 30 kHz are applied. The deeper sound frequency enables a considerable easier pass of a dusty atmosphere. Compensation with media is not necessary. For appliances in the Explosive – Area are the appropriate admitted sensors at disposal.

Advantages

• A compensation with void and full cases is not necessary
• In the Ex – area applicable