The maintenance-free and weather-proofed (IP67) light / dim light / twilight sensor FD-1 is a versatile light sensor to detect and gather ambient, indoor, outdoor, diffuse light, dusk, twilight, dim light.
The output signal is a square wave signal with proportional frequency to the light intensity.
In combination with the control instrument AD-1 individual switching points can be defined to control illumination, light, jalousies, marquees, blinds, shutters, air conditioning, heaters, ventilation, flaps, roof hatches and build-ups.
 
Technical data FD-1:
 
  
Operating voltage typ.: 24 VDC ±10 % (power supply via control instrument AD-1)
  
Measuring range: 50…1000 lx (= lm/m²)
  
Ambient temperature: -30…+80 °C
  
Protection degree: IP 67
  
Output signal: 24V square-wave signal: 70…2000 Hz, (open-collector, with protecting resistor)
  
Connection: ca. 2 m wired-ready cable, 3-wire, 3x 0.25 mm2
  
Dimensions: 50 x 65 x 35 mm (WxHxD)
 
Further information can be found in the Data sheet.