Level Sensors for interface measurement of solids in liquids
Continuous measurement
There are various industries that require detection of sludge levels or detection of solids in liquids, e.g. in sediment containers or basins, filters or inclined clarifiers in the metal industry, chemical plants, lime or gravel works and the wastewater industry. In this case the measurement accuracy and durability of the sensors is of particular importance as pollution, chemicals and gases can often affect measurement accuracy.
The NivoBob® series NB 3300 and 3400 can handle most interface measurements and are very reliable due to the simple measuring principle. An analogue signal 4-20mA and a Modbus RTU / Profibus DP interface are available for level analysis.
Point Level Measurement
To measure limit levels of sludge and solids in liquids, vibrating forks of the Vibranivo® series VN 1000 or VN 5000 can be used. The parts which come in contact with the medium are made of durable stainless steel. Using versions VN 1030 or VN 5030 even depths of approx. 4 m in a tank or a basin are possible as long as the installtion position is from the top. The high sensitivity required for accurate solids detection can be easily set on the electronics.