Measuring the interior lighting

The light intensity indoors can be measured by the C-RI-0401R-design module, which consists of two parts:

The first, recessed part (corresponding to the C-RI-0401S), is placed in the flush box, typically under the second wall-mounted design part.

The second wall-mounted part, by default in ABB Time design (other types of designs, or other mechanical arrangements can be customized), is equipped with the sensors of illumination, interior temperature, the IR transmitter and the receiver. In the customized versions, some sensors can also be left out (e.g. the IR sensor).

The module measures the interior illumination levels, with the range of the measured light intensity from 0 to 50,000 lx.

Fig. 1. An example of the design of the sensor of lighting, temperature and IR control in the GIRA design (system 55)

Notes:

1. The figure shows the second part of the module, i.e. the design part with sensors. In this case it illustrates the GIRA design cover, electronics is by default installed inside the cover (both parts are for better clarity separated from each other); on the left a standard frame is shown.

2. The appearance and the method of mounting on the wall varies according to the particular design. Both parts of the module are connected with a connector-terminated ribbon cable (on the side of the design part is a connector allowing a separation of both parts). The cable shown is the figure is from the temperature sensor; it is firmly mounted in the supplied module and it cannot be disassembled.