The EmCon5 is a lean-burn emission controller for gas engine co-generation units. It is designed to control the exhaust gas emission levels based on indirect measurements. Simply three input signals are required for the control purpose: manifold inlet pressure and temperature and engine load. A CH4 input signal is optional. Use of an oxygen sensor is not required.Following initial measurements of the engine emission levels and successful analysis, the EmCon5 guarantees optimal operation of the gas engine at the predefined emission limits.All controller parameters are freely programmable. The adjustments and modifications are made via the computer-program “WinScope”. The EmCon5 fits perfectly with the VariFuel2 and VariFuel2+ air/gas mixer series.