Removing the Lens Assembly
Lens assemblies from 0.3X to 4.0X are designed and factory-adjusted for quick change-out with no need for user adjustment. The CCD camera is mounted to the housing and is not attached to the lens assembly. The lens is not damaged by ambient light; however, it is vulnerable to dust settling on the CCD sensor. To avoid dust problems, the CCD sensor should be protected at all times with a lens assembly in place, except when changing lenses.
To remove a lens assembly, refer to the following figure and perform the following steps:
1. Remove the set screw that attaches the surface illumination ring.
2. Gently pull off the surface illumination ring and place it in a safe location.
3. Grab the lens assembly by the knurled outer ring and turn it counterclockwise until you feel that the bayonet fitting has disengaged.
4. Pull out the lens assembly.
Figure 21. Removing and Replacing the Lens
Installing the Lens Assembly
To install the lens assembly, refer to the following figure and perform the following steps:
1. Insert the lens assembly and turn it clockwise until you feel that the bayonet fitting has engaged.
2. Reattach the surface illumination ring with the set screw provided.
6.8 Controlling the Lighting
HDV systems provide long-life LED lighting for surface and profile illumination. Lighting levels are adjusted through the M3 software by sliding graphical controls on the touchscreen. For additional information, refer to “ Lighting Strategy ” later in this document and to the MetLogix M3 Software User’s Guide .
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