Flowmeter Measures Biogas Methane Content
Endress+Hauser has introduced the Proline Prosonic B 200 Ultrasonic Biogas flowmeter for measuring the flow rate and methane content of wet biogas, landfill or digester gas, and other types of low pressure, wet or contaminated gas.
Built with no moving or intrusive parts, the B 200’s meter body has a 316L stainless steel construction and is suitable for wet, dirty or corrosive gases and is available with an aluminum or stainless steel transmitter housing.
It can measure and display direct methane fraction as a function of sound velocity and temperature without additional measuring instruments. Other possible outputs include corrected methane volume flow, energy flow, calorific value, temperature and Wobbe index.
The B 200 operates in temperatures of 32 to 176 degrees Fahrenheit and pressures up to 145 psi. Accuracy of volume flow is 1.5% of reading, and accuracy of the optional methane measurement is 2% absolute.
It is certified intrinsically safe for use in Class 1 Division 1 and other hazardous areas, has ATEX, IEC and cCSAus approvals, and NEMA 4X, IP66 and IP67 protection. It also has pressure equipment directive approval (PED).