• Continuous online operation with patent-pending Ortho-Beam technology.
• Utilizes a 254nm wavelength UV light source.
• Displays UV Transmittance or UV Absorbance values.
• User-friendly interface with 4-20mA analog output and RS232 for data logging.
• Configurable alarms via dry contact.

• Automatic chemical cleaning system.
• Dual sample feed capability.

• Acts as a surrogate measurement for TOC/DOC.
• Reduces cleaning needs and compensates for lamp drift and cuvette fouling.
• No reagents required, offering lower costs and maintenance.

• Water Treatment: Detects changes in coagulant demand, monitors organics removal, optimizes UV disinfection systems, and monitors potential for disinfection byproducts (DBPs).
• Distribution System Monitoring: Detects system contamination.
• Wastewater Treatment: Monitors effluent discharge.

The UVM5000 is an online continuous organics monitor using a 254 nm UV light source to measure natural organic matter (NOM) in water. It serves as a surrogate for total organic carbon (TOC) and is effective in detecting aromatic or reactive organics that can form DBPs when combined with chlorine. The Ortho-Beam technology enhances accuracy and reduces maintenance by compensating for UV lamp fluctuations and quartz fouling.

• Range: 0 - 100% UVT, 0 - 2 UVA.
• Accuracy: ± 0.5% FS; Repeatability: ± 0.1% UVT; Resolution: 0.1% UVT, 0.001 UVA.
• Path Length: 10 mm; Sampling Time: 10 seconds; Flow Rate: 300 - 1000 mL/min.
• Calibration: Continuous automatic calibration with Ortho-Beam technology.
• Cleaning: Reduced cleaning requirements; optional automatic cleaning.
• Self Diagnostics: Monitors leaks, lamp output, humidity, temperature, and electrical faults.
• Operator Interface: Five push-button menu system with a 4-line x 20-character backlit LCD.
• Alarms: Configurable for high/low UVT/UVA setpoints, low lamp output, leak detection, and faults.
• Humidity Control: Sensor with regeneratable desiccant system.
• Outputs: 4-20 mA output, dry-contact terminals, RS232 for data logging.
• Light Source: Low pressure mercury UV lamp with a 2-year expected life.
• Dimensions: 14” H x 12” W x 8” D; Enclosure: Nema 4X, wall mountable.
• Electrical: 24VDC 20W power adapter (90-250 VAC 50/60 Hz).
• Temperature: Storage -4º to 140º F (-20º to 60º C); Operating 32º to 113º F (0º to 45º C).
• Warranty: 2-year limited warranty.

Site-specific correlations can be made between UV 254 and other organic test parameters such as TOC or DOC. The Ortho-Beam technology allows for intrinsic compensation for quartz fouling and lamp fluctuations by taking UV 254 nm measurements at 90-degree angles through a rectangular quartz flow cell.