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5.2.2 ESPLUCASL2 – „Luminance meter LUCAS L20“ EN

Product description
  • Sensor forming the average L20 - luminance measurement
  • Measuring field with fixed coverage angle
  • Adapted to the spectral sensitivity of the human eye by V (λ) correction
  • Electronically controlled heating prevents icing or fogging
  • Overvoltage protection on input and output side
  • Potential-free fault signalling contact (NC)
  • Thermo-insulated stainless steel case mat. no .: 1.4571
  • Special metal ring protects the front cover of the luminance camera from staining
  • Suitable for pole- and wall mounting
Your advantages
  • Various measuring ranges selectable
  • Meets all sensor requirements in harsh tunnel environments
  • Temperature and long-term stable measuring system
  • Robust 4-20mA analogue output

Technical specifications
Electrical properties
Voltage supply 230V AC ± 10%, 45...63 Hz, 30VA
Device fuse 2,0 A M (medium time-lag)
Measurement method Luminance L20 according to DIN 67524 resp. CIE-88
Max. measurement 0....10.000 cd/m²
Min. measurement range 0...........10 cd/m²
  Please report desired measurement range with your order. 
Other measurement ranges by request. 
The measurement range is a factory setting and cannot be changed on-site!
Output signal 4,0...20,0 mA
  Bürde < 250 Ω
Output fuse 32 mA M (medium time-lag)
Interference protection Varistor for power supply
Micro fuse and suppressing diode for output
Connector terminal Screw terminal for cable cross sections 0,5...2,5 mm²
Optical properties  
Visual field 20° fest, Smaller coverage angles of visual field by request
Physical properties  

Stainless steel (mat. No.: 1.4571), double-walled
Requirement class I according to German ZTV-Ing. Teil 5, Abschnitt 4

Cable bushing 2 x PG16 cable glares for outer cable diameter 7…14 mm
Dimensions Housing with mounting bracket L × W × H = 280 × 115 × 216 mm
Protection class IP65
Weight 2,5 kg
Temperature range Ambient temperature: -30°...+70°C
Storage temperature: -30°...+70°C
Mounting position Clearance above Camera > 250mm
Clearance behind Camera > 500 mm
To the Flyer: (click)
To the Instructions: (click)

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