SRS8 Halogen Spectral Radiance Standard (250-2500nm)

  • SRS8 Integrating Sphere Radiance Calibrator
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+44 118 975 1355
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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.

The 200mm diameter SRS8 features a BaSO4 coated integrating sphere complete with baffled, grit-blasted 50W QTH lamp and 50mm diameter window to deliver exceptional radiance uniformity. Stable lamp operation is 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 luminance meters.

Core benefits

Features

  • Integrating sphere based uniform standard of spectral radiance (mW-1.sr-1.m-2.nm-1)
  • Spectral radiance calibration range 250-2500nm
  • 50mm diameter window
  • Fitted with 50W 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 halogen lamp, G6.35 base
Nominal lamp power and voltage50W, 12V
Operating current4.000A
Expected lifetime2000 hours
Sphere coatingBaSO4
Window diameter50mm
Peak spectral radiance (typ.)475 mW. sr-1m-2.nm-1 at 750nm
Luminance (typ.)24000 cd.m-2
Correlated colour temperature (typ.)3400K
Chromaticity coordinates, CIE 1931 & 1976x = 0.4148, y = 0.4006, u' = 0.2378, v' = 0.5167

Calibration

Measurement typeSpectral radiance over a circular central area of diameter 10mm
Wavelength range250-2500nm
Wavelength Interval5nm
TraceabilityPhysicalish Technische Bundesanstalt (PTB, Germany)
Calibration frequencyRecommended after 100 hours burn-time

Mechanical

Connector4mm socket
Dimensions92L x 45W x 77H (mm)

Calibration

CALIBRATION-SRS-250-300Spectral radiance calibration 250-300nm
CALIBRATION-SRS-300-800Spectral radiance calibration 300-800nm
CALIBRATION-SRS-800-1800Spectral radiance calibration 800-1800nm
CALIBRATION-SRS-800-2500Spectral radiance calibration 800-2500nm
CALIBRATION-SRS-ND-300-1100Spectral radiance calibration 380-1100nm with and without ND filter
CALIBRATION-SRS-COLOR-TEMPSRS8 operating current modified to obtain 2856K operation (CIE illuminant A)
Typical SRS8 Measurement Data Graph
Typical Radiance of SRS8

Ordering Information

CAL_SRS8SRS8 Halogen spectral radiance standard
CALIBRATION-SRS-250-300Spectral radiance calibration 250-300nm
CALIBRATION-SRS-300-800Spectral radiance calibration 300-800nm
CALIBRATION-SRS-800-1800Spectral radiance calibration 800-1800nm
CALIBRATION-SRS-800-2500Spectral radiance calibration 800-2500nm
CALIBRATION-SRS-ND-300-1100Spectral radiance calibration 380-1100nm with and without ND filter
CALIBRATION-SRS-COLOR-TEMPSRS8 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 +44 118 975 1355 or email us