Continous measurement of level difference by measuring device NIVOFIX D

NIVOFIX-D is a measuring device developed by TENZOTERMA company for controlling the screens in waste water treatment plants. The level difference is a function of the volume of impurities captured on the screens and waste water flow. The device was developed for measurements in very contaminated environment.
An indirect measurement based on the bubbling method was used (see the detailed description in our catalogue sheets) . The only difference is in the use of the differential pressure sensor and two independent electromagnetic pumps emitting air into the system before and after the pressure sensor diaphragm . The level difference causes the imbalance of the tensometric bridge which is proportional to the level difference.

The measuring method advantages are:
  • high precision
  • small size
  • low consumption - simple assembly
  • self cleaning capability
  • the resistance against the most aggressive and contaminated liquids - very low price
  • the warranty and post warranty service - almost no maintenance

This measuring device offers following possibilities:
  • display of measured value on digital gauge
  • setting two comparative levels with consecutive relay action and LCD lamp signalling
  • the current output to control room

Technical specifications:
Supply24V DC
Measurement precision± 0,25%
Offset and gain temperature compensation-10°C - +40°C
Operational temperature-20°C - +70°C
Output signal4 - 20mA, 0 -20 mA, 0 - 1V, 0 - 5V
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