Honle SUV 20.2 Y2 C UV-Sensor – Continuous UV Irradiance Monitoring

The Hönle SUV 20.2 UV-Sensor is a high-precision UV irradiance sensor designed for the continuous measurement and monitoring of UV lamp output in drinking water disinfection systems. Manufactured in accordance with DVGW guideline W294-3, this sensor provides reliable and repeatable UV intensity measurements required for system control, validation, and regulatory compliance.

With a robust stainless-steel housing and UV-permeable entrance optics, the SUV 20.2 is engineered for long-term operation in demanding water treatment environments where accuracy and durability are critical.

Key Features

• Compliant with DVGW worksheet W294-3
• Designed for continuous UV irradiance monitoring
• UV-permeable entrance optic with wide aperture angle
• SiC UV-C sensor optimized for 230–280 nm
• Industrial 4–20 mA output signal
• Stainless steel probe body for long service life
• Suitable for drinking water UV disinfection systems

Technical Specifications

• Product Name: Hönle SUV 20.2 UV-Sensor
• Applicable Standard: DVGW W294-3 (06/2006)
• Measurement Range: 10 – 3000 W/m²
• Sensor Type: SiC UV-C sensor
• Spectral Sensitivity: 230 – 280 nm
• Output Signal: 4–20 mA current loop (Y2)
• Supply Voltage: 24 V DC
• Current Consumption: Max. 20 mA
• Max. Load Resistance: 500 Ω

Optical & Mechanical Properties

• Entrance Optic Diameter: Ø 0.59 in (15 mm)
• Aperture Angle: 40°
• Probe Body Material: Stainless steel 316L (1.4404)
• Weight: Approx. 0.26 lb (120 g)
  

Environmental Conditions

• Operating & Storage Temperature: 32 – 122 °F (0 – 50 °C)
• Air Humidity: < 90% (non-condensing)
• Degree of Protection: IP65 when installed / IP60 when not installed
  

Electrical Connection

• Connector Type: M12 round plug connector (C-coded)
• Recommended Cable: Shielded connection cable Z1G-I

Calibration & Maintenance

Recommended calibration intervals depend on UV irradiance levels:

• ≤ 1000 W/m²: Calibration every ≤ 2 years or ≤ 10,000 operating hours
• > 1000 W/m²: Calibration every ≤ 1 year or ≤ 5,000 operating hours

Typical Applications

• Drinking water UV disinfection systems
• Municipal and industrial water treatment plants
• Continuous UV system performance monitoring