Binder KBF 720 (E5.2) - Unit Description

KBF / KBF P (E5.2) 02/2012 page 17/103
(continued)
Maximum work place
threshold limit value
Tolerated concentration
with permanent load
Substance
Formula
ppm
mg/m
3
ppm
mg/m
3
Ozone
O
3
0.1
0.2
0.5
1
Hydrochloric acid
HCl
2
3
300
500
Hydrogen sulphide
H
2
S
10
15
350
500
Nitrogen oxides
NOx
5
9
5
9
Sulphur dioxide
SO
2
5
13
5
13
Toluol
C
6
H
5
CH
3
100
380
1300
5000
Xylene
C
6
H
5
(CH
3
)
2
100
440
1300
5000
These values are to be considered only as approximate values. The sensor resistance largely depends
on the temperature and humidity conditions during the time of exposure to harmful substances. Avoid
simultaneous condensation. Tolerated error of measurement: ± 2 %r.H. The maximum work place
threshold limit value is one that can be regarded as harmless for humans.
• Vapors of oil and fat are dangerous for the sensor because they may condensate at the sensor and
thus prevent its function (insulating layer). For similar reasons, it is not possible to measure smoke
gases.
2. Unit description
The climatic chambers KBF / KBF P are equipped with a multifunctional microprocessor display 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 controller MB1 per-
mits the high precision performance of temperature and humidity cycles.
With its microprocessor controlled humidifying and dehumidifying system the KBF / KBF P is a high-
precision climatic chamber. It completely meets the requirements of the stipulated stability and durability
tests for pharmaceutical products:
• Stability tests acc. to ICH guideline CPMP/ICH/2736/99 (Q1A)
• Photostability tests acc. to ICH guideline CPMP/ICH/279/95 (Q1B) (KBF P)
Furthermore, it permits simulating exactly and over long periods constant conditions for other applications
such as sample conditioning for material testing of paper, textiles, plastics, building materials, etc.
A resistance humidifying system humidifies the air. For this purpose, use deionized (demineralized) water.
The option BINDER Pure Aqua Service allows using the chamber with any degree of water hardness.
The inner chamber, the pre-heating chamber, and the interior side of the doors are all made of stainless
steel (material no. 1.4301 (V2A) in Germany, US equivalent 304). The housing is RAL 7035 powder-
coated. All corners and edges are also 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. 15.1). The climatic chamber KBF / KBF P
comes equipped with an Ethernet serial interface for computer communication.
In addition, the BINDER communication software APT-COM™ 3 permits networking up to 30 units and
connecting them to a PC for controlling and programming, as well as recording and representing tempera-
ture and humidity data. For further options, see chap.19.5.
The KBF / KBF P models size 240 and 720 are equipped with four castors. Both front castors can be easi-
ly locked via the attached brakes.
The chambers can be operated in a temperature range from 0 °C / 32 °F up to 70 °C / 158 °F (KBF,
KBF P without light cassettes) / from 10 °C / 50 °F up to 60 °C / 140 °F (KBF P with illumination) and in a
humidity range of 10% r.H. to 80% r.H.
For the control ranges of temperature and humidity, see diagrams (chap. 12).