Dimming; Colour Temperature; Tunable White; Scene - Zumtobel LUXMATE CIRIA Instructions For Start-Up And Use

Introduction

23 Dimming

Smooth adjustment of a lamp's luminous flux. Dimming can refer to both increasing and decreasing the
luminous flux.
Brighten: increasing a lamp's luminous flux. A luminaire can be brightened from any position (except
100 %), but can only be dimmed on from 0 %.
Dim: decreasing a lamp's luminous flux. A luminaire can be dimmed to any position, but can only be
dimmed off to 0 %.
Dim on: increasing a lamp's luminous flux from a dimmed off state (0%) to a set control value.
Dim off: decreasing a lamp's luminous flux from its current position until the lamp is completely off
(0 %). The scene remains active.

24 Colour temperature

(Unit: kelvin)
The temperature that a "black body" must have in order for its light to be perceived as the same colour
as the actual existing light source. A black body is a theoretically ideal body that absorbs rather than
reflects all of the electromagnetic radiation it encounters regardless of the wavelength. If these black
bodies are heated, they change their colours from black to red to yellow to white to blue. The lower the
temperature of the black body, the "warmer" or more yellow the light. The higher the temperature, the
"cooler" or more blue the light.

25 Tunable White

"Tunable White" describes the option to dynamically change the light of an LED luminaire in the white
light range. The colour temperature of Tunable White luminaires from Zumtobel can be changed in the
white light range from 2700 to 6500 kelvin.
Figure 12: Colour temperature range of Tunable White luminaires

26 Scene

A scene is a set of defined settings for luminaires, blinds, etc. which meet a specific requirement within
an area. These settings can be dynamically aligned and include different types of automation.
A scene can be recalled manually (e.g. by pressing a key) or automatically (e.g. by time-linked automa-
tion). Examples of scenes are: Desk, Presentation, Break.

27 Time-linked automation

A type of automation for which time is the triggering factor.
Example of time-linked automation: in an individual office, an absence scene is recalled every working
day at 20:00.
LM-CIRIA operating and commissioning manual 2.0 | 06. 2012 | en 13