In UV curing applications requiring deep curing of adhesives and lacquers, radiation in the UV-A and blue (visible) spectral range is used to excite the photoinitiators. UV radiometers for applications in which LED technology is used for object irradiation must be designed and calibrated in such a way to ensure that the irradiance is correctly measured for the spectral emission range of the LED.
Product description
RCH-116 irradiance detector
The RCH-116 UV detector was specially developed for use in UV radiation curing with UV-A LEDs. It offers all the features and functions of the RCH series detectors . Its spectral responsivity covers the wavelength range from 360 to 450 nm and thus applications for deep curing of adhesives and lacquers.
Calibration
The detector is calibrated for 6 typical UV LED wavelengths in terms of its spectral irradiance responsivity and is supplied with a factory calibration certificate that corresponds to the high standard of the measurement laboratory for optical radiation measurement quantities of Gigahertz-Optik. If necessary, a test certificate accredited according to DIN EN ISO / IEC 17025 can optionally be created for the detector with the associated measuring device.
Typical spectral sensitivity (relative) of the RCH-116 detector
Relative spectral sensitivity of the RCH-116 detector together with typical UV LED emission spectra
RCH-116 detector with rigid light guide
| General | |||
| Short description | UV detector for measuring the irradiance in UV curing with UV LEDs |
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| Main features | Detector for the high UV radiation levels in UV radiation curing. Large safety distance between the handle and the radiation sensor of the detector. For use with all gigahertz optics measuring devices. |
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| Measurement ranges | Spectral responsivity 360 nm to 450 nm. |
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| typical applications | UV radiation curing with medium pressure lamps |
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| Calibration | Calibration of the spectral irradiance responsivity in A / (W / cm²) for 6 typical UV HLEDs wavelength. Factory calibration certificate of the measuring laboratory of the Gigahertz-Optik. Optional DIN EN ISO / IEC 17025 accredited test certificate |
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| Product | |||
| Input optics | 9 mm, diffuser |
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| Dimensions | Measurement head: Height: 8 mm / Diameter: 37 mm Detector element: Length: 65 mm / Diameter: 15 mm |
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| Light Guide | Rigid, Length 22c m / 8.7 inch |
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| spectral responsivity |
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| max. Irradiance | 40 W/cm² |
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| Max. signal current | 100 µA |
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| Miscellaneous | |||
| temperature range | up to + 100 °C (short-term) |
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| Humidity | <80%, non-condensing |
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| Cable Length | 50 cm |
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| Connector | -1,-2 or -4 |
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| Info | If a different light source needs to be measured than calibrated (spectral distribution), spectcral missmatch correction factors should be applied in order to achieve a low measurement uncertainty. At very high humidity fault-currents of the radiometer at low measurement currents are possible and need to be consiered. At higher temperature a temperature correction of the detector signal might be necessary in order to achieve a low measurement uncertainty. |
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