Osram QUICKTRONIC INTELLIGENT DIM CFL Manual de usuario descargar pdf (Pagina 25)

The dependency of the relative luminous flux X (n) on the digital 8-bit

value n is described by the following correlation:

253

10)(

−

.%8 ,2

)(

)1()(

Const

nXnX

+−

This results in the following graphical association:

Figure 13: DALI dimming curve

2.7.1 Brief overview of the most important dimming values

Table 3: Values of digital dimming value against percentage luminous

flux

As not all DALI controllers start at 0.1 % luminous flux, the smallest

value for DALI ECG is 85 for example (corresponds to 1 % luminous

flux). All values below 85 (except for 0 = off) are interpreted as the

minimum light level. To ensure that the transitions from one digital level

to the next are not visible, DALI ECGs from OSRAM feature digital

“smoothing" (this is an additional function of the QTi for increasing

lighting comfort and is not part of the DALI standard).

percentage luminous flux

0 0,1 0,5 1,0 3 5 10 20

digital dimming value

0 1 60 85 126 144 170 195

percentage luminous flux

30 40 50 60 70 80 90 100

digital dimming value

210 220 229 235 241 246 250 254

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 91 92

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Osram QUICKTRONIC INTELLIGENT DIM CFL Manual de usuario Pagina 25