The measuring device for CH4, CO2, O2 and H2S in biogas , landfill and sewage gas Robust and very exact metrology Visualization of the measurement-values Low maintenance with our calibration unit Ca20 Biogas Controller BC20 determines the concentrations of methane (CH4), carbon dioxide (CO2), oxygen (CO2) and hydrogen sulphide (H2S) in biogas. CH4, CO2 and CO2 are continuously measured every 5 minutes.
The time interval between two H2S -measurements can be adapted to the requirements, from 30 minutes to 12 hours. Additionally, the measurement of H2S can also be triggered or switched off by the SPS.
The CH4, CO2 and CO2 concentrations are determined with a combination of thermal conductivity-sensor and electro-chemical O2 sensor.
The integrated data-logger stores 500 datasets. A dataset consists of date, time, measurement data, measuring point as well as error messages.
The user can modify the storage intervals at levels that are preset. The graphical display represents the time- progression of the gas quality based on the last 500 measurements. BC20 is fully compatible to the SUSI data-acquisition system.
A stainless-steel flame-trap and an air-filter are part of delivery. Measuring range Methane 0 to 100 Volume % Carbon dioxide 0 to 100 Volume % Oxygen 0 to 20.9 Volume % Hydrogen sulphide 0 to 2,000 ppm Display of measurement-values Numerical current measurement-values Graphical time-progression of the measurement-values