KT (E6.1) 07/2015 Page 14/138
2. Unit description
A high level of precision, reliability, and safety for all growth parameters ensures optimum incubation
conditions. Moreover, the KT cooling incubator is designed for maximum usability – even in continuous
operation year after year. It fulfills all technical and application-specific requirements arising in
experimentation such as in the areas of biotechnology, medicine, the nutrition industry, pharmaceutical
and cosmetics industries, botany, and zoology.
Two important temperature technologies have been combined to achieve perfect temperature control.
The Peltier refrigerating system, in conjunction with the APT.line™ preheating chamber technology,
satisfies the unique prerequisites for attaining highly-precise temperature control and particularly short
recovery times after opening the door.
The refrigerating system is distinguished by direct, precise, and rapid temperature conduction. Due to the
Peltier cooling, shocks are omitted which would occur during start and stop of conventional refrigeration
systems with a compressor.
The APT.line™ preheating chamber system ensures high level of spatial and time-based temperature
precision, thanks to the direct and distributed air circulation into the interior. This is especially important
for maintaining temperatures – especially with full chambers – and for rapid restoration of optimum growth
conditions after opening the door. The inner glass door ensures that the temperature remains constant
when observing the incubation process. The air turbine supports exact attainment and maintenance of the
desired temperature accuracy. The fan speed is digitally adjustable. The heating and refrigerating
systems are microprocessor regulated to a tenth of a degree. In addition, the cooling incubator provides
almost unlimited possibilities for adaptation to individual customer requirements based upon extensive
programming options and on the week program timer and real time clock of the controller.
All unit functions are easy and comfortable to use thanks to their clear arrangement. Major features are
easy cleaning of all unit parts and avoidance of undesired contamination.
The inner chamber, the pre-heating chamber and the interior side of the doors are all made of stainless
steel V2A (German material no. 1.4301, US equivalent AISI 304). The housing is RAL 7035 powder-
coated. All corners and edges are also completely coated.
The cooling incubator KT comes equipped with an Ethernet interface for computer communication, e.g.
via the communication software APT-COM™ 3 DataControlSystem (option, chap. 19.1). For further
options, see chap. 23.5.
Temperature range with an ambient temperature of +22 °C +/- 3 °C / 71.6 °F ± 5.4 °F:
+4 °C / 23 °F up to +100 °C / 212 °F
Fan speed range with temperature values from 4 °C up to 70 °C: 40 % up to100 %
Fan speed with temperature values above 70 °C: 100 %
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