# Switch off the arc lamp and move the arc mirror out of the beam by clicking on the arc mirror in the schematic.
# The Hartmann test ends with the shutter out of the beam.
The Graphical view
Normal operations are performed in the "Main View" tab of the SpUpNIC Control interface. On the right-hand-side is a graphical representation of the instrument, which shows the light path through the various components controlled by the GUI. You can click on the guide mirror, arc mirror, rear of slit mirror and Hartmann shutters to move them in and out of the beam, and on the arc lamps and slit illumination to switch them on and off. A blue border surrounding the graphic indicates that the spectrograph is in "Acquisition" or "Calibration" mode, i.e. some component is in the beam that would obstruct its path to the science detector.