kruss DSA100 Installation And Operation Manual page 69

Multi-dosing unit DS3226-3228
5. Move the horizontal slide controller to the middle position.
DSA3/4 only:The displayed value must be set to zero.
6. Use the vertical slide controller or the <↓> key to move the needle to a position
between the camera and the light source.
7. Set the illumination, zoom and focus for the needle image. The needle should
be in focus and take about one tenth of the image width.
For software-controlled optics, this is carried out in the tab
respectively
8. Use the setscrew on the right-hand side of the dosing unit to bring the needle
in the middle position in the video image.
SPA C SPA C SPAC SPAC
O-Con (DSA3/DSA4) ( software manual).
page 67
Imaging (DSA1)