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CL2 Halogen Spectral Irradiance Standard (250-3000nm)

  • CL2 spectral irradiance standard reference 250-3000nm

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

Whilst the CL2 is fitted with a grit-blasted 100W QTH lamp as standard, a range of lamps from 10W to 250W are available. 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 illuminance meters.

A mounting bracket provides a universal interface with all optical tables and mounting systems with the calibration distance measured from a simple datum face to the rear of the lamp.

Core benefits

Features

  • Open-frame spectral irradiance calibration standard (mW-1.m-2.nm-1)
  • Spectral irradiance calibration range 250-2500nm with De Vos extrapolation to 3000nm
  • Range of reliable QTH lamps
  • Calibration distance measured from a simple datum face
  • Designed for optimal performance when powered by the 610 current stabilised lamp power supply
  • Calibration performed with respect to the Physicalish Technische Bundesanstalt (PTB, Germany)

Electro-Optical (typical values for CAL_CL2_100W)

Lamp type Grit-blasted quartz tungsten halogen lamp, G6.35 base
Nominal lamp power and voltage 100W, 12V
Operating current 8.5A
Expected lifetime 2000 hours
Peak wavelength (typ.) 860nm
Peak spectral irradiance (typ.) 30 mW.m-2.nm-1
Illuminance (typ.) 1150 lux
Correlated colour temperature (typ.) 3200K
Chromaticity coordinates, CIE 1931 & 1976 x = 0.4281, y = 0.4010, u' = 0.2462, v' = 0.5188

Calibration

Measurement type Spectral irradiance at 500mm from datum face
Wavelength range 250-2500nm, 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)

Lamp rating

CAL_CL2_10W 10W QTH spectral irradiance standard
CAL_CL2_20W 20W QTH spectral irradiance standard
CAL_CL2_50W 50W QTH spectral irradiance standard
CAL_CL2_100W 100W QTH spectral irradiance standard
CAL_CL2_150W 150W QTH spectral irradiance standard
CAL_CL2_250W 250W QTH spectral irradiance standard

Calibrations

CALIBRATION-CL2 CL2 Spectral irradiance calibration 300-800nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2-250-1700 CL2 Spectral irradiance calibration 250-1700nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2-COLOR-TEMP CL2 Operating current modified to obtain 2856K operation (CIE illuminant A)
CALIBRATION-CL2-UV CL2 Spectral irradiance calibration 250-800nm. De Vos extrapolation to 3000nm
CL2 calibration standard top dimensions

Ordering Information

CAL_CL2_10W 10W QTH spectral irradiance standard
CAL_CL2_20W 20W QTH spectral irradiance standard
CAL_CL2_50W 50W QTH spectral irradiance standard
CAL_CL2_100W 100W QTH spectral irradiance standard
CAL_CL2_150W 150W QTH spectral irradiance standard
CAL_CL2_250W 250W QTH spectral irradiance standard
CALIBRATION-CL2 CL2 Spectral irradiance calibration 300-800nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2-250-1700 CL2 Spectral irradiance calibration 250-1700nm. De Vos extrapolation to 3000nm
CALIBRATION-CL2-COLOR-TEMP CL2 Operating current modified to obtain 2856K operation (CIE illuminant A)
CALIBRATION-CL2-UV CL2 Spectral irradiance calibration 250-800nm. De Vos extrapolation to 3000nm
PSU_610 Current stabilised lamp power supply

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