Fiber Bundle Assembly; Sample Chamber Interface Assembly - Bayer HealthCare RapidPoint 400 Series Service Manual

Fiber Bundle Assembly

The fiber bundle assembly contains many small diameter optical fibers that
are combined to form a fiber optic cable with four terminals. The bundle
connects to the neon board assembly, illumination housing assembly,
sample chamber interface, and to the photo-feedback sensor on the main
PC board.
The bundle transmits light to the CO-ox components during sample
analysis.
• the fiber bundle transmits light from the illumination housing module to
the optics head of the sample chamber interface, where it is focused
onto the sample chamber
• transmits a small portion light from the illumination module to the
photo-feedback sensor, which controls the halogen lamp output
• transmits light from the neon reference lamp to the sample chamber,
which is used to check the polychromator's accuracy
A separate fiber bundle is attached to the polychromator. This
NOTE:
bundle, which is connected to one side of the optical head, transmits light
from the sample chamber (originating from the neon lamp and from the
halogen lamp) to the polychromator.

Sample Chamber Interface Assembly

The sample chamber interface assembly consists of the following
components:
• optical head with spring link
• detector housing module
• motor
• drive wheel
• PC board
58 Rev. C