The SI system (current pulse system) is a control and automation technology for hard-wired installations. The wide range of functional modules and the logic provided by the wiring enables a wide range of control tasks to be carried out. These include, among other things, the switching of electrical consumers (e.g. lights, roller shutters, blinds) depending on the light and time of day, dimming functions for low-voltage and DALI lights, or even the protection of roller shutters and awnings from wind and rain. These can be supplemented as required with individual, group and central commands. The SI system does not require any PC programming and can therefore be installed conventionally. Since the wiring largely corresponds to controls with relay or contactor circuits, the costs for planning and commissioning are very low. The consistent use of the control and supply voltage of 24VDC and the strict separation between the protective extra-low voltage and low-voltage side make the components compact, cost-effective and immune to interference. In addition, control cables with a length of up to 100 m allow standard switch programs to be easily connected, even in large buildings. The system is particularly suitable for lighting control. Remote dimmers, the DALI gateway and twilight sensors are available for this purpose. Sensors record physical, chemical, digital or analog properties and convert them into electrical signals for further processing. The LF 1 light sensor is a component for the SIROLUX and EDS 16 evaluation units. It measures the light value over a large area and is suitable for outdoor use. Properties: - Light sensor for SIROLUX and EDS for outdoor installation, - Cable length up to 100 m, - Several evaluation units can use one light sensor Installation type: - Surface-mounted installation - Orientation preferably in a north or east direction Areas of application: In conjunction with other components of the system, the light sensor enables, among other things, the shading of rooms or terraces and balconies using roller shutters and blinds or the control of the outdoor lighting of properties, buildings, sidewalks and streets.
