Binder KBW 240, Operating Manual, Page: 14 / 147

KBW (E6) 11/2016 page 14/147
2. Chamber description and overview
2.1 Chamber description
A high level of precision, reliability, and safety for all growth parameters ensures optimum incubation con-
ditions. Moreover, the KBW growth chamber with light is designed for maximum usability – even in contin-
uous operation year after year. It fulfills all technical and application-specific requirements arising in exper-
imentation such as in the areas of biotechnology, medicine, the nutrition industry, pharmaceutical and
cosmetics industries, botany, and zoology.
The chambers are equipped with a multifunctional microprocessor color display program controller for
temperature, and illumination control. Temperature is displayed accurate to one-tenth of a degree. The
KBW is a high-precision growth chamber for programmable light and temperature conditions. With its
comprehensive program control functions, the MB2 display program controller permits the high precision
performance of temperature cycles and illumination control.
Two important temperature technologies have been combined to achieve perfect temperature control. The
specially developed DCT™ refrigerating system, a direct refrigerating process, 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. Large-area
labyrinth evaporator plates directly conduct the cold to the atmosphere of the working space.
The horizontal air conduction of the APT.line™ preheating chamber technology, in conjunction with the
controllable air turbine enables simulation of the natural air-flow conditions. The APT.line™ preheating
chamber system guarantees 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 tempera-
tures – especially with full chambers – and for rapid restoration of optimum growth conditions after open-
ing the door. The inner glass door ensures that the temperature remains constant when observing the
incubation process. The fan supports exact attainment and maintenance of the desired temperature accu-
racy. The fan speed is digitally adjustable. The heating and refrigerating systems are microprocessor
regulated to a tenth of a degree. In addition, the growth chamber with light provides almost unlimited pos-
sibilities for adaptation to individual customer requirements based upon extensive programming options of
the controller.
The chamber is regularly equipped with daylight illumination tubes. It can be optionally equipped with plant
growth lamps bearing the ideal spectrum for photosynthesis and thus become the ideal growing chamber
for plants under programmable temperature conditions. The fluorescent tubes are built in light cassettes
that can be freely positioned within wide areas. They illuminate very homogeneously the racks below
them. The lamps can be switched in three groups. By adequately adjusting the program controller, an
automatic day/night simulation can be effected.
All chamber functions are easy and comfortable to use thanks to their clear arrangement. Major features
are easy cleaning of all chamber 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 completely coated.
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 MB2 touch screen
controller and is also possible directly with a computer via Intranet in connection with the communication
software APT-COM™ 3 DataControlSystem (option, chap. 19.1). The chamber comes equipped with an
Ethernet serial interface for computer communication. In addition, the BINDER communication software
APT-COM™ 3 permits networking up to 30 chambers and connecting them to a PC for controlling and
programming, as well as recording and representing temperature data. For further options, see chap.23.5.
The chambers are equipped with four castors. Both front castors can be easily locked via the attached
brakes.
Temperature range at an ambient temperature of 22 °C +/- 3 °C / 71.6 °F ± 5.4 °F :
•
Without light cassettes: 0 °C / 32 °F up to +70 °C / 158 °F .
•
With maximum illumi10 °C / 41 °F up to +60 °C / 140 °F