MK (E2.1) 10/2014
page 15/73
2.
Unit description
The alternating climate chamber MK is a specially developed precision refrigerating / warming cabinet with
an unrivalled capacity, which by far exceeds the capabilities of normal test cabinets. With its extensive
program control, the alternating climate chamber MK is designed for optimum performance with regard to
temperature accuracy and rapid heating up and cooling down phases, thus providing the ideal facilities for
solving all the problems which occur during material as well as ageing and stress tests. In addition, the
alternating climate chamber MK provides almost unlimited possibilities for adaptation to individual cus-
tomer requirements based upon extensive programming options.
The patented APT.line™ preheating chamber and air conduction technology guarantees excellent spatial
temperature values for the total working area. The alternating climate chamber MK provides a powerful
refrigerating system with rapid cooling-down speeds. In addition, the alternating climate chamber MK pro-
vides almost unlimited possibilities for adaptation to individual customer requirements based upon exten-
sive programming options.
The high-quality housing insulation guarantees both a low noise mode of operation and a consistently low
housing temperature. 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). When operating
the chamber at temperatures above 150 °C /
302°F,
the impact of the oxygen in the air may cause discol-
oration of the metallic surfaces (yellowish-brown or blue) by natural oxidation processes. These colora-
tions are harmless and will in no way impair the function or quality of the unit. The housing is RAL 7035
powder-coated. All corners and edges are also completely coated.
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 efficient program controller is equipped with a multitude of operating functions, in addition to recorder
and alarm functions. Programming of test cycles is easily accomplished via the modern color-display con-
troller MB1 and is also possible directly with a computer via Intranet in connection with the communication
software APT-COM™ 3 DataControlSystem. The alternating climate chamber MK is regularly equipped
with a serial interface RS 422 for computer communication, e.g. with the communication software APT-
COM™, which permits networking up to 30 units and connecting them to a PC for controlling and pro-
gramming, as well as recording and representing temperature data 3 DataControlSystem (option, chap.
14.1) For further options, see chap. 18.5.
At an ambient temperature of +18 °C /
64.4 °F
to +32 °C /
89.6 °F
, you can operate the alternating climate
chamber MK in a temperature range from -40 °C /
-40 °F
up to +180 °C /
356 °F
.
