UV Sensor UV Cosine – UVI (ERYCA)
The UV-Cosine_UVI (ERYCA) from SGLUX GmbH is a high-accuracy, erythema-weighted UV Index sensor designed with a cosine-corrected...
UV Sensor UV Cosine – UVI (ERYCA)
UV-Cosine_UVI (ERYCA) – Precision Cosine-Corrected UV Index Sensor for Accurate Environmental and Solar Monitoring
The UV-Cosine_UVI (ERYCA) from SGLUX GmbH is a high-accuracy, erythema-weighted UV Index sensor designed with a cosine-corrected optical diffuser for true-to-angle solar radiation measurements.
Developed for meteorological, environmental, and public health monitoring, it accurately quantifies erythemally effective ultraviolet radiation (280–400 nm) following the CIE erythema action spectrum.
The sensor’s cosine-corrected geometry ensures uniform angular response, even under oblique solar incidence, while its SiC photodiode and precision optical filter guarantee excellent visible blindness (>10¹⁰) and long-term stability.
With a linear 0–5 V output, NIST/PTB-traceable calibration, and IP67 anodised aluminium housing, the UV-Cosine_UVI (ERYCA) delivers research-grade accuracy for UV Index networks, climatology, and smart city monitoring systems.
It sets a benchmark for field-deployable, cosine-corrected UV Index measurement, combining precision optics, robust mechanics, and traceable calibration in one durable instrument.
Understanding UV Sensor UV-Cosine_UVI (ERYCA)
The UV-Cosine_UVI (ERYCA) measures erythemally weighted UV irradiance using a cosine-corrected optical head that mimics the angular response of human skin to sunlight.
Its Silicon Carbide photodiode and optical erythema filter reproduce the CIE action spectrum, providing accurate UV Index data independent of sun elevation or angle of incidence.
This cosine correction eliminates angular measurement errors common in flat-sensor geometries, ensuring true global irradiance readings.
Factory-calibrated and traceable to NIST/PTB, the UV-Cosine_UVI is ideal for meteorology, environmental research, and health-risk monitoring, delivering reproducible, real-world solar UV Index values.
Technical Specifications
| Feature | Specification |
| Function |
Cosine-corrected erythema-weighted UV Index (UVI) sensor
|
| Detector Type |
Silicon Carbide (SiC) photodiode with erythema-weighted optical filter
|
| Spectral Range |
280 – 400 nm (CIE erythema weighted)
|
| Peak Wavelength | 295 nm |
| Cosine Correction |
±3 % deviation (0°–80° solar incidence)
|
| Output Signal |
0 – 5 V DC (linear to UV Index)
|
| Measurement Range | 0 – 20 UV Index |
| Accuracy | ±4 % of reading |
| Visible Blindness (Smax/S>405 nm) | > 10¹⁰ |
| Response Time | < 1 s |
| Operating Voltage | 5 – 24 V DC |
| Power Consumption | < 20 mW |
| Temperature Compensation |
Integrated active circuit
|
| Operating Temperature | −40 … +85 °C |
| Storage Temperature | −55 … +100 °C |
| Housing |
Anodised aluminium, IP67 weatherproof enclosure
|
| Connector Type | M8 / custom cable |
| Calibration | NIST / PTB traceable |
| Dimensions | Ø 35 mm × 85 mm |
| Weight | Approx. 150 g |
| Mounting |
Horizontal surface mount with cosine diffuser dome
|
| Compatibility |
SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems
|
| Applications |
UV Index networks, meteorological stations, public health systems, environmental monitoring, climate research
|
Key Features and Advantages
Cosine-Corrected Optical Design
The sensor’s precision optical diffuser ensures accurate UV irradiance detection from varying angles, matching real-world solar exposure conditions.
Erythema-Weighted Spectral Response
Spectral sensitivity follows the CIE erythema action curve, providing biologically accurate UV Index readings.
Solar Blind SiC Detector
High-rejection ratio (>10¹⁰) for visible and infrared radiation ensures UV-only measurement integrity.
Factory-Calibrated and Traceable
Each unit is individually calibrated to NIST/PTB standards, ensuring inter-comparability across global measurement networks.
Robust Outdoor Performance
Constructed with an anodised aluminium IP67 housing, resistant to UV degradation, corrosion, and environmental stress.
Temperature-Compensated Electronics
Maintains output stability across −40 °C to +85 °C, ensuring long-term accuracy in all climates.
Fast and Linear Output
Provides a 0–5 V DC output proportional to UVI with <1 s response, enabling real-time data logging.
Plug-and-Play Integration
Fully compatible with SGLUX SENSOR MONITOR 5.0, VOLTCON, and SGCD4 for digital or analog monitoring systems.
The UV-Cosine_UVI (ERYCA) combines optical cosine correction, erythema-weighted precision, and rugged engineering, setting a professional standard for accurate outdoor UV Index monitoring and solar safety applications.
Applications Across Industries
Meteorological and Climate Research
Used in national UV monitoring networks to record long-term solar UV variations and atmospheric transparency.
Smart City and Environmental Safety Systems
Deployed for public UV display boards and IoT-based urban radiation monitoring solutions.
Public Health and UV Risk Management
Provides data for real-time UV alerts, helping reduce overexposure risks in communities.
Agriculture and Material Testing
Supports UV weathering and exposure studies, ensuring materials meet outdoor durability standards.
Aerospace and High-Altitude Studies
Suitable for UV measurement in high-irradiance environments and atmospheric experiments.
Calibration and Laboratory Verification
Serves as a field reference for calibration of other UVI sensors and radiometers.
The UV-Cosine_UVI (ERYCA) delivers scientifically accurate, cosine-corrected UV Index data, ensuring that environmental, research, and safety applications maintain the highest standards of UV measurement reliability.
Why Choose United Spectrum Instruments?
-
Official distributor of SGLUX UV-Cosine_UVI (ERYCA) in India
-
Expertise in cosine-corrected UV measurement and environmental system integration
-
Local calibration traceable to NIST/PTB standards
-
Competitive pricing for meteorological, research, and public safety projects
-
Nationwide technical support, training, and installation service
FAQs
What makes the UV-Cosine_UVI (ERYCA) unique?
Its cosine-corrected diffuser ensures angle-independent, accurate UV Index readings.
Does it measure according to the erythema action spectrum?
Yes – it exactly matches the CIE erythema weighting for biological accuracy.
Can it operate outdoors continuously?
Yes – its IP67 housing and anodised body are engineered for permanent outdoor exposure.
Is calibration traceable?
Yes – every unit is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum assist Indian customers?
By offering full integration, calibration, and nationwide technical support for UV monitoring systems.
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FAQs
What makes the UV-Cosine_UVI (ERYCA) unique?
Its cosine-corrected diffuser ensures angle-independent, accurate UV Index readings.
Does it measure according to the erythema action spectrum?
Yes – it exactly matches the CIE erythema weighting for biological accuracy.
Can it operate outdoors continuously?
Yes – its IP67 housing and anodised body are engineered for permanent outdoor exposure.
Is calibration traceable?
Yes – every unit is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum assist Indian customers?
By offering full integration, calibration, and nationwide technical support for UV monitoring systems.
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