Optical Sensors & Detector – UV Sensors
UV Sensors For Water Treatment – UV-Water-G3/4″
UV-Water-G3/4″ – Industrial-Grade UV Sensor for Water Treatment, Sterilisation and Disinfection System Performance Monitoring
The UV-Water-G3/4″ from SGLUX GmbH is a robust, waterproof UV-C irradiance sensor engineered for continuous monitoring of UV water-treatment systems.
Designed with a stainless-steel G 3/4″ process thread, it mounts directly into UV reactors, measuring germicidal radiation at 254 nm for accurate lamp-output verification and dose validation.
Its solar-blind Silicon Carbide (SiC) detector ensures exclusive UV-C sensitivity, immune to visible and IR light.
The IP68-rated housing and UV-grade quartz window guarantee reliable performance in pressurised and submerged environments.
Factory-calibrated to NIST / PTB standards, the UV-Water-G3/4″ provides repeatable, traceable results essential for DVGW, ÖNORM and US-EPA compliant systems.
Compact, durable and maintenance-free, it delivers precise, real-time irradiance data for drinking-water, wastewater and industrial disinfection applications, ensuring optimal UV-dose control and regulatory compliance.
Understanding UV Sensors For Water Treatment - UV-Water-G3/4″
The UV-Water-G3/4″ continuously measures the germicidal UV intensity within water-disinfection reactors.
Its SiC photodiode, protected by a quartz window and sealed inside a stainless-steel AISI 316 body, generates a linear analog signal proportional to UV irradiance.
The G 3/4″ thread allows easy, leak-free installation directly into standard UV housings.
With solar blindness > 10¹⁰ and active temperature compensation, the sensor ensures reliable readings under variable flow, temperature and lamp conditions.
It is ideal for real-time UV performance validation in municipal, industrial and environmental water-treatment systems.
Technical Specifications
| Feature | Specification |
| Function |
Waterproof UV-C irradiance sensor for water-treatment reactors
|
| Detector Type |
Silicon Carbide (SiC) solar-blind photodiode
|
| Spectral Range |
230 – 280 nm (UV-C germicidal band)
|
| Peak Wavelength | 254 nm |
| Measurement Range |
0.1 µW/cm² – 100 mW/cm²
|
| Output Signal |
0 – 5 V DC (linear with irradiance)
|
| Accuracy | ±5 % of reading |
| Response Time | < 1 s |
| Visible / IR Rejection |
> 10¹⁰ (Smax / S>405 nm)
|
| Temperature Compensation | Active circuit built-in |
| Operating Voltage | 5 – 24 V DC |
| Operating Temperature | −10 … +90 °C |
| Maximum Water Pressure | Up to 10 bar |
| Housing Material |
Stainless steel AISI 316L, IP68 rated
|
| Process Connection | G 3/4″ male thread |
| Optical Window |
UV-grade quartz, O-ring sealed
|
| Connector |
Waterproof cable / SubConn connector
|
| Calibration | NIST / PTB traceable |
| Compatibility |
SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems
|
| Applications |
Drinking water, wastewater, aquaculture, process control, environmental UV monitoring
|
Key Features and Advantages
Direct Process Integration
The G 3/4″ thread enables direct installation into standard UV disinfection chambers without additional adapters.
Precise Germicidal Sensitivity
Spectrally tuned for 254 nm, it accurately monitors the germicidal UV output of low-pressure mercury and UV-LED lamps.
Solar-Blind Accuracy
Insensitive to visible and IR radiation, ensuring reliable UV-C readings even under ambient light.
Rugged Waterproof Construction
The IP68 stainless-steel housing and quartz window guarantee long-term resistance to pressure, humidity, and fouling.
Traceable Calibration
Each sensor is factory-calibrated to NIST / PTB standards for reproducibility and regulatory confidence.
Temperature and Pressure Resilience
Performs reliably up to +90 °C and 10 bar, suitable for all standard water-disinfection reactors.
Low Maintenance and Long Lifetime
The solid-state SiC detector offers high photostability and minimal drift, even during continuous exposure.
Plug-and-Play Integration
Linear 0–5 V output connects directly to VOLTCON, SENSOR MONITOR 5.0, or PLC systems for automatic UV-dose control.
The UV-Water-G3/4″ delivers traceable, stable, and accurate UV intensity data, ensuring safe and efficient operation of UV water-disinfection systems across municipal and industrial facilities.
Applications Across Industries
Drinking-Water Disinfection
Used in municipal and bottled-water plants for verifying UV dose and maintaining safety compliance.
Wastewater Treatment
Provides feedback for lamp maintenance and reactor control in industrial and sewage-treatment plants.
Food and Beverage Processing
Ensures hygienic production by validating UV sterilisation of process and rinse water.
Pharmaceutical and Semiconductor Industries
Monitors UV sterilisation of ultrapure water in cleanroom environments.
Aquaculture and Marine Applications
Maintains pathogen-free conditions by monitoring disinfection performance in recirculating systems.
Research and Environmental Monitoring
Used in UV-dose validation, biofouling control studies, and sensor development experiments.
The UV-Water-G3/4″ combines durability, chemical stability, and precise calibration, making it indispensable for real-time UV intensity monitoring in every segment of the water-treatment industry.
Why Choose United Spectrum Instruments?
-
Official distributor of SGLUX UV-Water-G3/4″ in India
-
Expertise in UV disinfection and process-monitoring technology
-
Local calibration traceable to NIST / PTB standards
-
Competitive pricing for municipal and industrial projects
-
Nationwide installation, integration and after-sales support
FAQs
What does the UV-Water-G3/4″ measure?
It measures UV-C irradiance (254 nm) for water-disinfection systems.
Can it be installed directly in the UV chamber?
Yes – the G 3/4″ thread allows direct reactor mounting without adapters.
Is it resistant to corrosion and pressure?
Yes – made of AISI 316L stainless steel, rated up to 10 bar pressure.
What calibration standard is used?
Each sensor is factory-calibrated and traceable to NIST / PTB standards.
How does United Spectrum support Indian customers?
By offering integration, calibration and nationwide technical service for UV disinfection and monitoring systems.
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FAQs
What does the UV-Water-G3/4″ measure?
It measures UV-C irradiance (254 nm) for water-disinfection systems.
Can it be installed directly in the UV chamber?
Yes – the G 3/4″ thread allows direct reactor mounting without adapters.
Is it resistant to corrosion and pressure?
Yes – made of AISI 316L stainless steel, rated up to 10 bar pressure.
What calibration standard is used?
Each sensor is factory-calibrated and traceable to NIST / PTB standards.
How does United Spectrum support Indian customers?
By offering integration, calibration and nationwide technical service for UV disinfection and monitoring systems.
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