Peltier-tempered accessories
Peltier-tempered cell holder with external heat exchanger
46 Edition 09/2014 SPECORD S600 accessories
15.3 Peltier-tempered cell holder with external heat
exchanger
Fig. 15-7 Peltier-tempered cell holder with temperature control unit and heat
exchanger
The Peltier-tempered cell holder allows the temperature control of cells with the
dimensions 12.5, x 12.5 x 46 - 46 (L x W x H in mm) and 10 mm path length
The temperature control of the cell holder is carried out via a separate control
unit. As control sensor a Pt101 sensor is used and positioned at the bottom
outer corner of the cell block. In addition to the control sensor the cell holder
further features another Pt101 for the optional registration of the holder or cell
temperature.
The recooling of the Peltier element is via a heat exchanger.
The cell sensor is designed specifically for standard cells with round plugs from
PTFE and can remain in the cell during the optical measurement.
The cell holder is equipped with a magnetic stirrer by default to achieve a fast
and even temperature distribution in the cell. The stirring speed is set at the
temperature control unit. Optimum stirring of the sample is achieved when using
magnetic stirring rods with a diameter of 3 mm and a length of 6 – 8 mm.
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