Datacolor CONDITIONER™ (MB2) 06/2017
page 110/126
19. Illumination system (cabinet with lights)
The cabinet with lights unit is equipped with Narva BIO vital
®
fluorescent tubes installed in two light cas-
settes. They illuminate very homogeneously the racks below them. A special reflector material ensures
optimum light diffusion and efficient utilization of the light intensity. The lens of the headlight leads to a
homogeneous intensity distribution even with a short distance to the rack.
Both light cassettes are permanently connected. The cable length permits easily removal to replace the
fluorescent tubes. Control is effected via the MB2 controller. Light intensity is off at 0% and is dimmable
between 1% and 100% in 1% steps.
Figure 21: Spectrum
Narva BIO vital
®
presents a spectral composition which is almost equivalent to natural daylight. It includes
the visible areas of the spectrum as well as an additional ultraviolet percentage (UV-A and UV-B) in a
similar manner like sunlight.
Type of fluorescent tube: T8 fluorescent tube in form of a rod with a tube diameter of 26 mm /
1.02 in
.
Length: 438 mm /
17.2 in
, 15W.
Illumination at 100% intensity: 4500 LUX (average value, measured with a spherical sensor (+/-10%) by
12 cm /
4.7 in
below the light cassette)
The waste heat of the fluorescent tubes leads to a modification of the temperature - humidity diagram:
When operating the chamber with illumination: Restricted temperature and humidity range
20 °C /
68 °F
to 60 °C /
140 °F
.
At
≤ 20 °C do not set the humidity set-point below 30 % r.H. Otherwise, no stable humidity
control is guaranteed.
1.0
0.8
0.6
0.4
0.2
0
300 350 400 450 500 550 600 650 700 750
Wavelength (nm)
Rel. intensity
Содержание 9020-0129
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