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Since July 1994, the Gigahertz-Optik calibration laboratory for optical radiation measurement quantities has been accredited by the DKD accreditation institution (Registration Number DKD-K-10601) actual DAkkS (D-K-15047-01-00) for the calibration of Spectral Irradiance. The ISO/IEC/EN 17025 (formerly ISO/IEC Guide 25, known as ANSI/NCSL Z540-1, and EN45001) accreditation assures the competency of calibration laboratories to carry out  specific tests or calibrations and forms the basis of the lab’s quality system.

For quartz-halogen lamps and incandescent sources in the power range from 250 W to 2000 W, spectral irradiance calibration with an official DAkkS calibration certificate is available. These lamps are calibrated against one G-O calibration laboratory  BN-9101 1000 W FEL Type quartz-halogen lamps (PTB calibration certification for wavelengths from 250 to 2500 nm). The reference sources are periodically recalibrated by the PTB.

Intercomparison measurements of the source under test, such as the BN-9101 (See Calibration Standards section), to a reference standard source are performed. The complete calibration procedure follows accreditation regulations and is confirmed by a DAkkS calibration certificate supplied with the calibrated source.

 

The KLD calibration of spectral irradiance produced by the test with DAkkS certificate is  performed according to fixed accredited calibration procedures and specifications. The calibration is limited for lamps between 250 to 2000 W in the wavelength range from 250 nm to 2500 nm. The calibration is done by direct comparison to a PTB Reference Standard and is confirmed in the official DAkkS calibration certificate  supplied with the calibrated source.

 

Wavelength Dependent Calibration Uncertainty
Measured Quantity

Spectral Irradiance in W/(m² nm) of Optical Radiation Sources

Note

Only for incandescent sources power range 250 W ≤ P ≤ 2000 W

KLD-S1
Wavelength nm Relative Measurement Uncertainty with Reference Standard
λ=250 ± 10 %
λ=260 ± 7 %
270 ≤ λ <400 ± 4 %
400 ≤ λ<800 ± 3 %
800 ≤ λ <2000 ± 4.5 %
2000 ≤ λ ≤ 2500 ± 7 %
Calibration Steps

10 nm from 250 to 300 nm; 20 nm from 320 to 800 nm; 50 nm from 850 to 2500 nm

Type Description File-Type Download
Datasheet KLD-S1 PDF
Produktname Product Image Description Show product
BN-LH250 Calibration lamp for spectral irradiance and illuminance.

Features: 250 W halogen lamp with stable and therefore long-lasting, helical structure. Lamp holder, crosshair. Calibration in spectral irradiance, 250 nm - 2500 nm, and/or illuminance, with factory or DAkkS certificate, optional power supply.
BN-9101 Calibration standard lamp for spectral irradiance.

Features: 1000W tungsten halogen lamp. Burn-in certificate. Stable filament. Horizontal calibration from 250-2500nm with factory or DAkkS certificate.
BN-0001 Calibration standard lamp for spectral irradiance.

Features: 1000W tungsten halogen lamp. Burn-in certificate. Stable filament. Vertical calibration from 250-2500nm with factory or DAkkS certificate.

Article-Nr Modell Description Request / Compare
Calibration
KLD-S1-01

Spectral Irradiance calibration within the wavelength range 250 to 400 nm with DAkkS certificate

KLD-S1-02

Spectral Irradiance calibration within the wavelength range 400 to 1100 nm with DAkkS certificate

KLD-S1-03

Spectral Irradiance calibration within the wavelength range 1100 to 2500 nm with DAkkS certificate

KLD-S1-04

Spectral Irradiance calibration within the wavelength range 250 to 1100 nm with DAkkS certificate

KLD-S1-05

Spectral Irradiance calibration within the wavelength range 400 to 2500 nm with DAkkS certificate

KLD-S1-06

Spectral Irradiance calibration within the wavelength range 250 to 2500 nm with DAkkS certificate

KLD-S1-RP

Set-up charge for non-Gigahertz-Optik or non-standard sources

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