The CUV5 is a general-purpose instrument for applications in meteorology, for material testing, for monitoring of lamps and for use in ageing tests in solar simulators.

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CUV5 Radiometer

Key features

  • For monitoring of global UV irradiance (total UV)
  • 5 year warranty (*)
  • Excellent linearity and directional response
  • Reliable under all weather conditions

High quality dome and diffuser give optimised directional response; an optical filter provides sensitivity to combined UV-A and UV-B as shown in the graph below. The photodiode generates a voltage output linearly proportional to the UV intensity.

The CUV5 is not suitable for the measurement of specific parts of the UV spectrum such as UV-A, UV-B, UV-E / UV-Index. For measurement of these parameters we recommend our UVS Series.

A waterproof plug and socket cable connection facilitates easy installation. The snap-on sun shield covers the connector and allows viewing of the integrated bubble level.

The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets.

(*) This product will need to be registered by the end-user within 6 months of purchase to activate the 5 year warranty.

Technical specification

Spectral range (overall) 280 to 400 nm
Sensitivity 300 - 500 µV/W/m²
Temperature response < -0.3% per °C
Response time (95%) < 1 s
Non-linearity (0 to 100 W/m²) < 1 %
Maximum UVA/UVB irradiance 400 W/m²
Operational temperature range -40 to +80 °C
Directional response (up to 70° with 100 W/m² beam) < 5 %
Field of view 180 °

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