Jeroen Smits
Manager Product- en Sector Specialists
HD2021T Serie – Photometric Radiometric Transmitters
The HD2021T Series is an advanced range of transmitters that convert photometric and radiometric quantities into a 0-10V DC voltage signal. These versatile devices are suitable for both indoor and outdoor installations.
Key Features
- Converts illuminance (Lux) and irradiance (W/m²) in UVA, UVB, UVC spectral regions, and the 400-1050 nm band.
- Output signal: 0-10V DC or 4-20mA (selectable).
- Designed for indoor and outdoor use.
Available Models
- HD2021T: For illuminance measurements.
- HD2021T1: For VIS-NIR irradiance measurements.
- HD2021T2: For UVA irradiance measurements.
- HD2021T3: For UVB irradiance measurements.
- HD2021T4: For UVC irradiance measurements.
Applications
Lighting Control
- Offices, factories, and production spaces.
- Commercial locations and theaters.
- Museums and sports facilities.
- Streetlights and tunnels.
- Horticultural systems.
Solar Radiation Monitoring
- Monitoring solar radiation in the 400-1050 nm spectral range.
UV Control
- Measuring UVA and UVB irradiance from tanning beds.
- Efficiency monitoring of filters in devices with high-pressure lamps.
Water Purification
- Monitoring UVC irradiance in wastewater treatment systems.
Versatility and Benefits
The HD2021T Series offers a comprehensive solution for diverse light and radiation measurements, serving various industries and applications with precision and reliability.
Technical specifications
Sensor Type HD2021T: Photodiode (Si). HD2021T1: Photodiode (Si). HD2021T2: Photodiode (GaP). HD2021T3: Photodiode (SiC). HD2021T4: Photodiode (SiC). Spectral Range HD2021T: Curve V(λ). HD2021T1: 400…1050 nm. HD2021T2: UVA. HD2021T3: UVB (peak sensitivity at 305 nm). HD2021T4: UVC (peak sensitivity at 260 nm). Measurement Type HD2021T: Photometric. HD2021T1–HD2021T4: Radiometric. Viewing Angle Corrected in accordance with the cosine law. Measurement Range HD2021T: mV/lux. HD2021T1–HD2021T4: mV/(mW/m²) with specific peaks for: UVA: Peak 360 nm. UVB: Peak 305 nm. UVC: Peak 260 nm. Output Signal 0…10 V (options for 0…1 V or 0…5 V available for minimum orders of 5 units). 4…20 mA. Power Supply For 0…10 V output: 16…40 Vdc or 24 Vac. For 0…1 V or 0…5 V output: 10…40 Vdc or 24 Vac. For 4…20 mA output: 10…40 Vdc. Power Consumption 10 mA. Working Temperature -20…+60 °C. Electrical Protection Protected against polarity inversions. Protection Degree IP66. Maximum Cable Length 150 m for 4…20 mA output. 10 m for voltage outputs.