CL2_RI Spectral Radiant Intensity Standard (300-3000nm)

  • CL2_RI Spectral Radiant Intensity Standard
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+44 (0)118 975 1355

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 typeGrit-blasted quartz tungsten halogen lamp, G6.35 base
Nominal lamp power and voltage250W, 24V
Operating current10.4A
Expected lifetime2000 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 & 1976x = 0.4281, y = 0.4010, u' = 0.2462, v' = 0.5188

Calibration

Measurement typeSpectral radiant intensity
Wavelength range300-2500nm, with De Vos extrapolation to 3000nm
Wavelength interval5nm
TraceabilityPhysicalish Technische Bundesanstalt (PTB, Germany)
Calibration frequencyRecommended after 100 hours burn-time

Mechanical

Connector4mm socket
CompatibilityPost mounting hole
Dimensions91.2L x 44.4W x 76.2H (mm)

Calibrations

CALIBRATION-CL2_RISpectral radiant intensity calibration 300-800nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2_RI-COLOR-TEMPCL2_RI Operating current modified to obtain 2856K operation (CIE illuminant A)
CL2-RI Calibration Standard Dimensions
CL2-RI Dimensions
Typical CL2-RI Measurement Data Graph
Typical Radiant Intensity of CL2

Ordering Information

CAL_CL2_250W250W Quartz tungsten halogen Standard Lamp
CALIBRATION-CL2_RISpectral radiant intensity calibration 300-800nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2_RI-COLOR-TEMPCL2_RI Operating current modified to obtain 2856K operation (CIE illuminant A)
PSU_610Current stabilised lamp power supply

The Bentham Standard

We’re with you from the first call to the final result

Call us on +44 (0)118 975 1355 or email us