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:
This measuring device offers following possibilities:
|Measurement precision||± 0,25%|
|Offset and gain temperature compensation||-10°C - +40°C|
|Operational temperature||-20°C - +70°C|
|Output signal||4 - 20mA, 0 -20 mA, 0 - 1V, 0 - 5V|