The light evaluation+control instrument AD-1 with light / dim light / twilight sensor FD-1 is a universal light measuring system to gather and evaluate ambient, indoor, outdoor, diffuse light, dusk, twilight, dim light.
Individual and convenient adjustable switching thresholds and delay times are set to control illumination, light, jalousies, marquees, blinds, shutters, air conditioning, heaters, ventilation, flaps, roof hatches and build-ups.
The display at the control instrument shows the individual switching on/off thresholds and corresponding delay times. The actual light intensity is also displayed.
The output relay, with potential-free changeover contact (no/nc), is operated, if adjusted threshold values are reached.
The maintenance-free and weather-proofed (IP67) light sensor FD-1 detects ambient and diffuse light intensity. It emits a frequency signal, proportional to the measured value, to the control instrument AD-1.
 
Technical data light evaluation + control instrument AD-1:
 
  
Operating voltage typ.: 230 V AC / 50 Hz ±5 %
  
Input signal: 24V square-wave signal, 70…2000 Hz
  
Output:   change-over contact (no/nc), potential-free, 230 V / 5 A (AC1)
  
Display: LC-Display, 3x 12 characters, character height 5 mm
  
Size housing: 70 x 75 x 120 mm (WxHxD)
  
Ambient temperature:  0…+70 °C
 
Further information can be found in the Data sheet.