flow velocity for determining flow rate
directly at the digestion tower’s exit and on the other side before the combined heat and power plant and before the flare
Up to 40 m/s
ATEX Zone 1
ATEX Zone 0
Safe measurements even in hazardous areas
Once installed, the sensor hardly needs any maintenance
Our vortex sensor is especially suited for condensate-laden fermentation gas that can also be particle-laden
Vortex VA40 ZG8 Ex-d / ATEX
Standard compact unit for hazardous applications, variable insertion depth
Vortex VA40 ZG4 withseparate transducer
Variable insertion depth, wide selection of sensor material, max. +240 °C
Anaerobic degradation processes happen in the digestion tower during wastewater treatment in a sewage plant, causing biogas (also sewage or fermentation gas) to arise, which mainly consists of methane and carbon dioxide. .
Exact measuring of biogas quantity is one oft he most challenging applications in flow measuring technology. Biogas is very moist, tends to condensate and is particle-laden. Its composition varies and is quite aggressive. Combined with air it can turn into explosive mixtures which is why it’s important to take according safety measures. Applied instruments have to be certified for the defined ex zone
Fermentation gas is measured directly at the digestion tower’s exit and on the other side before the combined heat and power plant. Flow rate towards the flare is also partly measured.