OSRAM QUICKTRONIC INTELLIGENT DIM CFL - Manual (Page 12)

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2.3.6 No more switching relays
The ECGs are switched on and off via the interface. The former exter-
nal relays required for switching are therefore no longer needed.
2.3.7 Addressing is not essential
DALI can also be used without any addressing (groups or individual
addresses). A method known as broadcast mode is used here, which
simply means that all control units are addressed together.
2.4 Installation and wiring instructions
2.4.1 Burning-in instructions/Cable insulation
• For forming and basic stabilization new lamps must be burned in
for 100 hours at 100 % dimmer setting (undimmed). Interruptions
during the burning-in are permissible. In dimming operation without
burning-in this can result in the lamps flickering, premature end-
blackening and shorter operating life. For measurements based on
IEC 60081, the lamps must also be correspondingly burned in, in
order to achieve maximum luminous flux and optimum lamp stabili-
ty.
3
• Dimming is generally only possible with filament preheating. The
filament temperature must be kept constant by auxiliary heating as
this can to lead to effects such as tungsten depletion (sputtering)
or to elevated vaporization of the emitter material.
• The control input (DALI or 1…10 V) is insulated from the mains
(230 V voltage-proof) by basic insulation (not SELV). The mains
cable and control line can therefore be routed together in a 5-core
NYM cable.
4
3 The electrodes of a low pressure discharge lamp are coated with an emitter (barium, strontium and
calcium oxide) to reduce the work function of the electrons from the tungsten filament wire. These
oxides are strongly hygroscopic and interact with the humidity of the air (consequence: relatively low
light yield, high lamp voltage and short service life of the lamp)
!
Solution: Intermediate reaction due to carbonate compounds from which the oxides are formed
at temperatures above 600 °C. The actual reduction of the filament work function requires atomic
barium on the emitter surface, which is only fully formed at the max. dimming setting (100 % lu-
minous flux) and high temperatures (1900 K electrode temperature) over a time period of 100 h. If
these conditions are not fulfilled, an increased cathode voltage drop results and leads to material
deposits on the filament: Reduced service life
4 In accordance with DIN VDE 0100 Part 520 Section 528.11, main current circuits and associated
auxiliary circuits can be laid together, even if the auxiliary circuits carry a lower voltage than the main
current circuits.