A method for the autothermal reforming of a hydrocarbon, in particular of diesel, includes introducing a combustible mixture of the hydrocarbon to be reformed and an oxygen-containing medium into a first reaction zone of a reformer, A gas-phase reaction is ignited. The semiconductor layer includes a first semiconductor region and a second semiconductor region at a surface portion, and the second semiconductor region makes a circuit around the first semiconductor region. The improved apparatus also comprises a novel percutaneous catheter assembly comprising a catheter portion comprising a catheter element, and a connector portion comprising an extracorporeal connector element. The response comprises data representative of which channels from the channel set are available for communications. Alignment indicia on the counter wheel are arranged during assembly to determine at various positions relative to the camera metering system whether the counter silk screen has been properly aligned and the counter properly preset.