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UL 1500
General characteristics
  • Equipment for luminous flux measurement on light sources by comparision with a standard lamp
  • Construction according to DIN 5032 Part 1 and CIE Publication No. 84 "The Measurement of Luminous Flux"
  • Metal chassis for sphere
  • Sphere to be opened to install measuring objects
  • Mechanical lock
  • Bracket to connect LMT measuring lamp holders
  • Shading device horizontal adjustable
  • Sphere paint inside with LMT photometer paint with matt-white diffusing surface, reflectance 80 % with variation of reflectance < 1.5 % in wavelength range 400 to 700 nm
Photometer
  • Photometer head with Si-photoelements
    • Diameter of light sensitive area 30 mm
    • Very fine V(λ)-approximation with accuracy f1 < 1 % according to DIN 5032 part 6
    • Thermostatic stabilization of photometer head to approx. 35°C ± 0.1°C
    • Diffusor built-in flush with inner surface of sphere
  • Electronic display unit U 1000
    • 4½-digit display
    • BCD output, analog output
    • Ranging auto/manual or remote programmable
    • Approx. 2 readings/s, 4-digit attenuator disconnectible
    • Power supply for thermostatic stabilization of photometer head
    • Stabilized power supply for auxiliary lamp
    • Digital display for sphere inside temperature, 0.1°C resolution
    • 19-inch 3 HU case for bench or rack mounting, instrument carrier
    • Power supply for 230 V, 50-60 Hz
Special characteristics
  • 1 500 mm diameter
  • Sphere material glass fiber, outside painting blue
  • Clamping device for fixing holders in pendent, upright, and horizontal position
Display range
  • 10-2 lm (last digit) to 2 × 106 lm
Options
  • Display range 10-3 lm (last digit) to 2 × 106 lm
  • Electronic display unit CONTROL-U 1000 in 19-inch 3 HU case for rack mounting
  • LMT Colormeter C 1210 for color measurements on light sources
  • Power source and wattmeter for test items
  • System integration with 19-inch electronic rack and LMT Connection unit
  • Software LMT LIMES 2000 Program package for integrating spheres
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