The MRU Vario Luxx emission analyzer uses infrared (3-gas) and electrochemical cells (6-gas) for precise measurement. It is most suitable for low NOx measurements and other toxic gas applications, but can also be used for gas engines, turbines, large boilers, furnaces, and other combustion applications. It can perform tuning, trouble-shooting, compliance reporting, or long-term monitoring of nearly any combustion application .

This analyzer meets MCP Directive 2015/2193 for medium combustion plants with rated power less than 50MW. Automatic features include internal diagnostics, zeroing using a 3-way solenoid valve, and data logging. The graphical data visualization and direct to CSV or PDF file reporting are very intuitive. Data can be transferred to a PC via Ethernet or USB .

The Vario Luxx can measure combustion air temperature up to 930°F using adequate NiCrNi probes. Gas temperature measurement depends on the probe accessory: up to 1200°F with stainless steel, up to 2012°F with Inconel, and up to 3090°F with ceramic probes. It features user settable O2 referencing (normalization), 8-channel analog 4-20mA outputs, and 4-channel inputs. A universal AUX input accepts 0-10V, 4-20mA, Type-K, or RS485 signals. It is compliant with CTM 30, CTM 34, and ASTM D6522 methods .