A new process gas chromatograph from Siemens A&D is based on micro-technology and can rapidly and precisely determine the calorific value of natural gas. Sitrans CV is mainly used for natural gas custody transfers. Examples include pipeline monitoring, gas transfer and distribution stations as well as gas liquefaction and regasification of LNG terminals. The device has a compact, rugged and explosion-proof housing and is suitable for use in extreme conditions from -20 to +55 degrees Celsius.