Datacolor Conditioner Operation Manual / DCCOPMN_RP1 / Rev 3.0 / 7th August 07
page 42 of 51
10. Lighting unit of the CONDITIONER™
The Datacolor CONDITIONER
TM
with lighting unit is equipped with 2 illumination cassettes with 2
fluorescent tubes. The light color with UVA portion is close to the spectrum of artificial sunlight D65 ISO
10977:
Wavelength / nm
Int
ens
ity
Figure 11: Spectrum
Fluorescent tube light color 955 (Narva) or 172 (Sylvania)
D65 ISO 10977
Illumination at 100 % intensity: 3231 LUX (average value below the fluorescent tubes at a distance of
135 mm):
A special reflector material ensures optimum light diffusion and efficient utilization of the light intensity.
To achieve maximum light homogeneity on the samples, keep them in a distance of at least
10 cm from the side walls.
All fluorescent tubes are turned on by pushing
at the controller panel. When the illumination is
switched on, the yellow LED
glows.
Light intensity can be set at the controller via parameter “int” between 1% and 100% (Table 3 on page 30).
The illumination is automatically switched off if the inner chamber temperature of 55°C or the
relative humidity of 75% r.H. is exceeded.
The lower controller display displays alternately the message “Lit” and the actual humidity,
LED
flashes, and the controller emits an intermittent alarm sound (chapter 8.1.5 on page
37). You can reset the alarm only if the inner chamber temperature is < 55°C and the relative
humidity is < 75 % r.H. You can mute the acoustical alarm at any time independently of the
humidity by hitting controller key
.
When the illumination is switched on, the set-point humidity at 20°C must not be lower than 30
% r.H. because otherwise no stable control is guaranteed.
10.1 Counter of operating hours
The counter of operating hours (6) situated in the lateral control panel is running when the illumination is
switched on. It cannot be reset to zero. Therefore we recommend noting down the number of operating
hours reached in the maintenance protocol or the operating book when replacing the fluorescent tubes.
