Thies GmbH – Brightness Transmitter Sector-dependent – Byggautomasjon Lysstyrke sektorisert 0-10VDC
Modell: Brightness Transmitter Sector-dependent
The brightness transmitter serves for the acquisition of the daylight intensity, depending on the position of the sun. The physical measuring values are output as illumination-proportional voltage and, for example, used for the sun-position-dependent control of shading devices, heating- and irrigation plants.
- The measuring value “brightness” of model 7.1414.60.000 is acquired by eight independent sensors (photo diodes), which are arranged in 45°-segments. (North, NE, East, SE, South, SW, West, NW ).
- The measuring value “brightness” of model 7.1414.61.000 is acquired by three independent sensors (photo diodes), which are arranged in 90°-segments (East, South, West )
Mode of operation:
The infalling light is transformed by sensors (photo diodes) and the connected electronics into proportional output values, which act linearly to the brightness. Every electrical output corresponds to a sector of 454 ° (7.1414.60.000) resp. 90 ° (7.1414.61.000). The sectors are centrally related to the directions.
Due to the special construction the sensors are aligned to a average elevation angle (height).
The brightness transmitters are equipped with heating in order to avoid a possible dewing.
|Measuring range||0 … 100 kLux|
|Sensor||SFH 206 K|
|Spectral range||400… 1100 nm|
|Accuracy||±2% of final value of meas. range|
|Acquisition angle with 7.1414.60.000||Elevation: 0… 90°|
|Azimut: 8 x ± 22,5°|
|Acquisition angle with 7.1414.61.000||Elevation: 0… 90°|
|Azimut: 3 x ± 45°|
|Electrical output||0…10 V each sector; the output are short-cut-proof and can be connected in parallel; voltage limit to <10,5 V. The highest value is delivered at the mutual output.|
|Operating voltage||12…28 VDC / 24VAC|
|Load resistance||≥ 1000 Ω|
|Operating power||Approx. 10 mA w/o heating/ max. 200 mA with heating without signal currents.|
|Ambient temperature||– 30…+ 70° C|
|Connection||via screwed cable gland|