Jung KNX 2095 LUX User Manual
Flush-mounted brightness controller
Flush-mounted brightness controller
Art. No. 2095 LUX
Operating instructions
1 Safety instructions
Electrical equipment may only be installed and fitted by electrically skilled persons.
Failure to observe the instructions may cause damage to the device and result in fire and
other hazards.
Do not shorten or grind the rigid fibre-optic rod nor use it for any other purpose.
These instructions are an integral part of the product, and must remain with the end
customer.
2 Device components
Figure 1: Brightness controller, concealed
(1) Brightness controller
(2) Lid
(3) Screwholes
(4) Bus connecting terminal
(5) Programming button
(6) Rigid fibre-optic rod with straight incidence
(7) Rigid fibre-optic rod with sloping incidence
(8) Sensor opening
3 Function
Intended use
- Measurement and control of lighting in interior areas
- Ceiling installation on fixed ceilings
- Installation in appliance box to DIN 49073
Product characteristics
- Continuous constant light control for dimmable lighting
- Switching two-point control for switched lighting
- Integrated bus coupling
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- Supply via bus
- Transmission of measured values, switching and dimming values
- Setpoint changeable in operation
- Control can be switched on and off in operation
4 Information for qualified electricians
4.1 Installation and electrical connection
DANGER!
Electrical shock on contact with live parts in the installation environment.
Electrical shocks can be fatal.
Before working on the device, disconnect the power supply and cover up live
parts in the working environment.
Selecting the installation location
The device measures the brightness on a work surface. Select the installation location such that
the work surface is recorded fully.
Light falling directly on the sensor or reflected by shiny surfaces causes incorrect measuring
results and impedes control. To ensure fault-free operation, the controller must only measure
diffused, reflected light.
i When delivered, the light measurement is optimised for installation at a height of
2.50 m directly over a work surface of 0.75 m height with approx. 30 % reflection. With
differing situations, please calibrate the controller (see chapter 4.2. Commissioning).
o Install the brightness controller directly above the work surface on the room ceiling
(figure 2).
Figure 2: Rigid fibre-optic rod with straight incidence
H Room height
a Height of the work surface
ø Diameter of the measuring surface:
ø = (H – a) · 0.54
o If installation is not possible directly over the work surface, then install the brightness
controller with a side offset (figure 3). The detection cone is then to the side of the surface
to be measured.
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Flush-mounted brightness controller
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