The METAS watt balance Mark II

The watt balance Mark II of the Federal Institute of Metrology METAS is ready to start the measurement of the Planck constant. After an intensive conception phase, the different modules of the experiment have been designed, realized and characterized in close collaboration with external partners. Beside an overview of the experimental setup and some results, the present paper shows also theoretical aspects and simulation results of the magnetic circuit. First results of the Planck constant should be available at the time of the conference.