BINDER MK 115 - Manual (Page 23)

MKF + MKFT (E3.1) 07/2014 page 23/114
2. Unit description
The alternating climate chamber MKF / MKFT is a specially developed precision cooling/warming cabinet
for the domain of industrial material testing and environment simulation, with an unrivalled capacity, which
far exceeds the capabilities of normal test cabinets, providing the ideal facilities for solving all the prob-
lems which occur during material as well as ageing and stress tests.
The alternating climate chambers MKF / MKFT are equipped with a multifunctional microprocessor dis-
play controller with 2-channel technology for temperature and humidity plus a digital display accurate to
one-tenth of a degree resp. 0.1% r.H. With its comprehensive program control functions, the display pro-
gram controller MB1 permits the high precision performance of temperature and humidity cycles with
rapid heating up and cooling down phases.
With its microprocessor controlled humidifying and dehumidifying system the MKF / MKFT is a high-
precision climatic test chamber. It covers the regular test specifications for temperature and climates cor-
responding to DIN und IEC standards. Furthermore, it permits simulating exactly and over long periods
constant conditions for other applications such as sample conditioning for material testing of paper, tex-
tiles, plastics, building materials, etc.
The patented APT.line™ preheating chamber and air conduction technology guarantees excellent spatial
temperature and humidity values for the total working area. The alternating climate chamber MKF / MKFT
provides a powerful refrigerating system with rapid cooling-down speeds. In addition, the alternating cli-
mate chamber MKF / MKFT provides almost unlimited possibilities for adaptation to individual customer
requirements based upon extensive programming options.
A resistance humidifying system humidifies the air. For this purpose, use deionized (demineralized) wa-
ter. The option BINDER Pure Aqua Service permits using the chamber with any degree of water hard-
ness.
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 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 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 (option, chap. 16.1). The alternating climate chamber MKF /
MKFT comes equipped with an Ethernet serial interface for computer communication. In addition, the
BINDER communication software APT-COM (option) permits networking up to 30 units and connecting
them to a PC for controlling and programming, as well as recording and representing temperature and
humidity data. For further options, see chap. 20.6.
The alternating climate chambers MKF / MKFT are equipped with
four castors. Both front castors can be
easily locked via the attached brakes.
Temperature ranges:
•
MKF without humidity: -40 °C / 104 °F up to +180 ºC / 356 °F,
• MKF in climatic operation: + 10 °C / 50 °F up to +95 °C / 203 °F
• MKFT without humidity: -70 °C / -94 °F up to +180 ºC / 356 °F
• MKFT in climatic operation: + 10 °C / 50 °F up to +95 °C / 203 °F
• MKF / MKFT in climatic operation with optional compressed air dryer:
0 °C / 32 °F up to +95 °C / 203°F
Humidity ranges:
•
MKF / MKFT: 10% up to 98% r.H.
• MKF / MKFT with optional compressed air dryer: 5 % r.H. up to 98% r.H.