The present invention pertains to an optical device useful in a projection system. The control pendant is configured to remotely control the motion of the vehicle lift through the control unit. The method also accounts for the extra cable that necessarily has to be added during the repair and for the replacement of a faulted repeater. Correspondingly, another embodiment is a method comprising the steps of establishing a connection between a workstation and a central server, collecting data from the workstation, writing the collected data to the central server, and severing the connection between the workstation and the central server. The invention also concerns an appropriate electronic control unit for an internal combustion engine, an appropriate computer program with program code means, and an appropriate computer program product with program code means. The analyzer comprises an opening mechanism for making a cut in the analytical tool pack, and a pushing mechanism for moving the analytical tool relative to the sealing sheets to cause the analytical tool to project through the cut.