Spectral Instruments Series 800, User Manual, Page: 47 / 70

Spectral Instruments
Pt # 2500- 47
5.6.2 The Process
Set the camera on its side so that the shutter/window is easily accessible.
If a shutter is mounted onto the front of the camera, it must be removed before
the window can be cleaned. Disconnect the shutter power cable. If one is
attached, also disconnect the shutter output status cable. Carefully remove the
shutter and set it aside.
This leaves the window exposed so the camera must be handled carefully to
avoid scratching the window. The window is held onto the front of the
camera by the vacuum inside the camera.
Set up the high-intensity light probe so that a grazing incident beam can be
directed at the window. Turn on the high-intensity light and critically
examine the front of the window by shining the light onto the window at a
high incidence angle.
If you don’t see anything - don’t do anything. If you see a speck of light
“glinting” off a particle first try dislodging the particle using the probe.
Cautiously assist the probe with light “whiffs” from the duster.
If there is a smudge on the window apply methanol or toluene to a small area
on the lint free cloth and wipe gently to dissolve the material. Check for lint
and remove if any is observed.
Screw the shutter back onto the front of the camera and plug in the connectors.
Install the camera head into the application.