The Optical Shutter - BFI Automation CFC 1000L Original Operating Instructions

5.3.2

The optical shutter

On the CFC 1000 of the IR Series, the radiation on the
sensor element (3) can be reduced by means of an opti-
cal shutter. The least radiation onto the element is ob-
tained when the smallest hole is positioned in front of the
sensor element. The shutter can be latched in 4 different
positions.
The shutter is linked mechanically to the detector holder.
To adjust the shutter, loosen the screws through the holes
in the screen of the pre-amplifier. The upper screw (1) se-
cures the shutter, the lower screw (2) centres the shutter.
1
2
3
5-3