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CL2_RI Spectral Radiant Intensity Standard (300-3000nm)

  • CL2_RI radiant intensity reference standard 300-3000nm

Calibrated in our dedicated laboratory with respect to standards calibrated by the Physicalish Technische Bundesanstalt (PTB, Germany), a range of calibration intervals within 300-2500nm is on offer, with a De Vos extrapolation of calibration data provided to 3000nm.

Fitted with a grit-blasted 250W QTH lamp, stable lamp operation may be ensured in operating the lamp with the 610 precision constant current DC power supply. A calibration to obtain CIE illuminant A operation (2856K) can be provided for the calibration of luminous intensity meters.

A mounting bracket provides a universal interface with all optical tables and mounting system.

Core benefits

Features

  • Open-frame spectral radiant intensity calibration standard (mW-1.sr-1.nm-1)
  • Spectral radiant intensity calibration range 300-2500nm with De Vos extrapolation to 3000nm
  • Reliable QTH lamp
  • Designed for optimal performance when powered by the 610 contact current power supply
  • Calibration performed with respect to the Physicalish Technische Bundesanstalt (PTB, Germany)

Electro-Optical

Lamp type Grit-blasted quartz tungsten halogen lamp, G6.35 base
Nominal lamp power and voltage 250W, 24V
Operating current 10.4A
Expected lifetime 2000 hours
Peak wavelength (typ.) 900nm
Peak spectral radiant intensity (typ.) 16 mW.sr-1.nm-1
Luminous intensity (typ.) 600 cd
CCT (typ.) 3200K
Chromaticity coordinates, CIE 1931 & 1976 x = 0.4281, y = 0.4010, u' = 0.2462, v' = 0.5188

Calibration

Measurement type Spectral radiant intensity
Wavelength range 300-2500nm, with De Vos extrapolation to 3000nm
Wavelength interval 5nm
Traceability Physicalish Technische Bundesanstalt (PTB, Germany)
Calibration frequency Recommended after 100 hours burn-time

Mechanical

Connector 4mm socket
Compatibility Post mounting hole
Dimensions 91.2L x 44.4W x 76.2H (mm)

Calibrations

CALIBRATION-CL2_RI Spectral radiant intensity calibration 300-800nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2_RI-COLOR-TEMP CL2_RI Operating current modified to obtain 2856K operation (CIE illuminant A)
CL2-RI halogen radiant intensity reference top dimensions
CL2-RI calibration standard top profile

Ordering Information

CAL_CL2_250W 250W Quartz tungsten halogen Standard Lamp
CALIBRATION-CL2_RI Spectral radiant intensity calibration 300-800nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2_RI-COLOR-TEMP CL2_RI Operating current modified to obtain 2856K operation (CIE illuminant A)
PSU_610 Current stabilised lamp power supply

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