CL6 Halogen Spectral Irradiance Standard (250-3000nm)

  • CL6-H QTH spectral irradiance reference standard
  • CL6-H QTH spectral irradiance reference standard 250-3000nm

Calibrated in our dedicated laboratory with respect to standards calibrated by the Physicalish Technische Bundesanstalt (PTB, Germany), Bentham offers a range of calibration intervals within 250-2500nm, with a De Vos extrapolation of calibration data provided to 3000nm.

Fitted with a grit-blasted 150W QTH lamp, the CL6 is offered in two configurations, with horizontal and vertical mount. In both cases, the entrance optic is simply 'plugged in' to a highly-reproducible position.

Stable lamp operation may be ensured in running the lamp with the 610 precision constant current DC power supply.

Core benefits


  • Enclosed quartz tungsten halogen spectral irradiance standard lamp
  • Spectral irradiance calibration range 250-2500nm with De Vos extrapolation to 3000nm
  • Range of reliable QTH lamps available
  • Calibration distance set by entrance optic adapter
  • Designed for optimal performance when employed with the 610 current stabilised lamp power supply
  • Calibration performed with respect to Physicalish Technische Bundesanstalt (PTB, Germany)

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The Bentham Standard

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