Real-Time UV254 Monitoring for Water Quality: UVT & UVA Solutions
- Patrick Glackin
- Jul 9
- 2 min read
Updated: 7 days ago
Unseen organics can derail UV254Â water quality monitoring, spike chemical costs, and trigger compliance violations. UV254 UVTÂ (Ultraviolet Transmittance) and UVAÂ (UV Absorbance) measurements pinpoint dissolved organics and guide dosing in seconds with no lab reagents required.
What Is UVT & UVA Monitoring?
UVT (Ultraviolet Transmittance) measures the percentage of 254 nm light passing through water, directly tied to dissolved organic carbon (DOC) and natural organic matter (NOM).
UVA (UV Absorbance) logs 254 nm absorption by organics as a rapid surrogate for Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Organic Carbon (TOC), and DOC accelerating coagulant and disinfectant dosing.
Together, real-time UVT & UVA data minimize disinfection by-product (DBP) formation, boost UV lamp efficiency, and safeguard public health.
Compare our flagship solutions below to find the right fit for your plant or field operation.
Online UV254 Monitor: Continuous UVT & UVA Measurement for Water Treatment
Applications
Drinking Water Treatment:Â Validate UV disinfection, reduce DBP precursors, ensure pathogen inactivation
Wastewater Treatment:Â Continuous effluent organic tracking, early pollution alerts, permit compliance
Industrial & Process Water:Â Cooling towers, boiler feed, manufacturing lines, optimize chemical dosing
Key Features & Benefits
Continuous UVT & UVA monitoring → 24/7 compliance assurance
Automatic jet-wash optics cleaning → Zero manual downtime
Deep-UV LED light source → Stable output; fewer lamp replacements
Modbus/SCADA + onboard logging → Seamless integration and audit trails
Zero consumables → Dramatically cut chemical and reagent expenses
UV254 Go! Portable UVT/UVA Analyzer for Field & Lab
Applications
On-site Calibration: Fine-tune online monitors in plants
Environmental Sampling: Rivers, reservoirs, groundwater surveys
Lab QA/QC & Troubleshooting: Verify treatment processes with one instrument
Key Features & Benefits
Handheld, reagent-free cuvette system → Instant on-site UVT/UVA readings
Multi-parameter surrogates (BOD, COD, TOC, DOC) → Consolidate tests and speed decisions
±0.5% UVT accuracy; ±0.05 ABS repeatability → Reliable water quality testing in any location
Interchangeable path lengths (2–50 mm) → Adapt to diverse sample matrices
Rechargeable battery & USB export → Error-free data logs with 10-year retention
Customer Success
Right Group’s team needed a fast, reliable portable UV254 analyzer for water quality monitoring as costly lab samples delayed decisions and risked downtime. Deploying the UV254 Go! portable UVT/UVA analyzer was a game-changer. They gained instant on-site verification with ±1% accuracy, boosting client confidence, eliminating unnecessary lab trips, and averting plant shutdowns.
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Photonic Measurements’ Online UV254 Monitor delivers continuous UVT & UVA tracking, while the UV254 Go! portable analyzer offers instant on-site measurement, together providing precise, reagent-free water quality monitoring and compliance assurance.
