Konica Minolta cm-5 Instruction Manual page 53

Measuring a liquid specimen by using a commercially-available 10 mm-wide cell
• As for the container for a liquid specimen, use a colorless, transparent container with surfaces which make
Notes
parallel with the illumination window and receiving window of the instrument.
• For 10 mm-wide cells, use cells which have an outside width dimension of 12.5 mm. Cells with an outside width
of 12 mm cannot be set securely.
• The measurement values obtained with cells having different optical path lengths may not be compatible with
each other.
• Do not spill a specimen or other liquid on the instrument. Doing so may cause malfunction. If any liquid is
spilled on the instrument, wipe it off immediately with a soft, dry cloth.
• Do not measure inflammable liquid.
• Ensure that there are no dust, stains, scratches, or fingerprints on the specimen or on the inner and outer surfaces
of the container of a liquid specimen. Set a specimen by holding a section other than the measurement surface to
avoid fingerprints.
• Bubbles in the container containing a liquid specimen prevent accurate measurement. Be sure to remove bubbles
before measurement. (Sometimes bubbles may be generated when a specimen is left for a while.)
• Water drops formed on a specimen or the container containing a liquid specimen due to condensation or other
causes prevent accurate measurement.
• The measurement accuracy for liquid containing fine particles may be unstable due to the deposition of the
particles.
When measuring a transparent index such as Gardner, etc., use the Transmittance Specimen Holder (10 mm wide)
Memo
and a 10 mm-wide cell with an optical path length of 10 mm.
1. Open the Transmittance Specimen Chamber Cover.
2. As shown in the figure, align the mounting screw of the
Transmittance Specimen Holder (10 mm wide) with the
screw hole on the instrument for mounting the holder
and tighten the screw with a flat-blade screwdriver.
3. Change the position of the cell holding plate to one of
the 10 mm, 20 mm or 50 mm groove on the
Transmittance Specimen Holder (10 mm wide)
according to the optical path length of the cell to be
used.
4. Pour a specimen in a transparent, 10 mm-wide
container.
5. Set the container to the Transmittance Specimen
Holder (10 mm wide).
Notes Be sure to set the cell so that the transparent surfaces of the
cell are oriented to the illumination and receiving
windows.
Transmittance
Specimen Holder
(10 mm)
CM-A198
10 mm
20 mm
50 mm
Light
2
E51