10
Figure 2.
Optical system
The selected wavelength is directed at a moving measurement head by an optic fiber. The
measurement head moves to select the well column and the track to select the row.
During measurement, the light from the lamp passes through an interference filter to an optic fiber.
The filter selects from the lamp spectrum the exact wavelength desired. The optic fiber directs the
light below the selected well of the plate. After passing through the well, the light is sensed by a
photodetector in the measurement head above the well.
Blank (air) and dark level measurements are needed to calculate the absorbances. The Multiskan FC
performs these measurements once at each measured row. The blank is measured from an opening
at the left end of the plate tray and the dark signal when the plate tray edge opposite the blank hole
blocks the light path.
Chapter 2: Installation
The Multiskan FC weighs 8.5 kg [18.7 lbs.] and care must be taken when lifting it.
Unpacking
How to unpack
Move the packed instrument to its site of operation. To prevent condensation, the instrument should
be left in its protective plastic wrapping until the ambient temperature has been reached. Unpack the
Multiskan FC instrument and accessories carefully with the arrows on the transport package pointing
upwards. Place the instrument onto a laboratory bench.
Caution!
Do not touch or loosen any screws or parts other than those specifically designated in
the instructions. Doing so may cause misalignment and will void the instrument warranty.
Retain the original packaging for future transportation. The packaging is designed to assure safe
transport and minimize transit damage. Use of alternative packaging materials may invalidate the
warranty. Also retain all instrument-related documentation provided by the manufacturer for future
use.
If you relocate your instrument or ship it for service, refer to “How to pack for service”.
Detector and preamplifier
Background reading point
Light source
Filter
Opening for blank
reading
