ECD

UV6 UV Analyzer

Compact on-line sampling UV analyzer for the continuous measurement of Nitrate, Color, COD, BOD, or TOC.

Measurement & Principle: Performs analysis over a wide range of values using UV absorption through a Quartz Flow Cell, relating absorbance to concentration via the Beer-Lambert Law with a Xenon light source and photo-detectors.
Easy Setup & Installation: Factory calibrated for quick start-up by connecting sample, waste, and cleaning solution/reagent lines, featuring standard wall mounting hardware and an optional benchtop stand with a reagent holder.
Interface: Equipped with a simple, user-friendly menu structure and a touch screen interface for easy information access and routine customization.

Quantity

Overview

The Model UV6 is a family of on-line sampling analyzers that use UV absorption measured through a Quartz Flow Cell to monitor water quality. Utilizing a long-life Xenon light source and photo-detectors, the system relates absorbance to sample concentration based on the Beer-Lambert Law. It is configured for a wide range of parameters, including Nitrate (0–30 mg/L, 0–100 mg/L, 0–250 mg/L), Color (0 to 500 Pt Co units / 0 to 500 Hazen units), and COD, BOD, or TOC via correlation at a 254 nm wavelength (0–200 mg/L to 0–20,000 mg/L).

These factory-calibrated analyzers are designed for easy start-up by simply connecting the sample, waste, and cleaning solution or reagent lines. Standard installation includes wall-mounting hardware, with an optional benchtop stand and reagent holder also available. Operating the system, accessing data, and customizing analysis routines are straightforward thanks to a user-friendly touch screen interface and simple menu structure.

Typical Applications

Municipal waste water
Industrial waste water
Rivers and surface water
Drinking water
Monitoring process liquids
Measurement of water quality for distribution or discharge

Key Features

Nitrate: Range: Various from 0-30 mg/L, 0-100 mg/L, 0-250 mg/L | Method: Continuous measurement, differential N-O absorption versus reference wavelength
COD 254 nm: Range: Various from 0-200 mg/L to 0-20,000 mg/L | Method: Continuous measurement, differential 254 nm absorption versus reference wavelength
BOD 254 nm: Range: Various from 0-200 mg/L to 0-20,000 mg/L | Method: Continuous measurement, differential 254 nm absorption versus reference wavelength
TOC 254 nm: Range: Various from 0-200 mg/L to 0-20,000 mg/L | Method: Continuous measurement, differential 254 nm absorption versus reference wavelength
Color: Range: Various from 0 to 500 Pt Co units (0 to 500 Hazen units) | Method: Continuous measurement, differential 350 nm absorption versus reference wavelength

Benefits

Versatile Application Flexibility: Wide parameter measurement ranges (Nitrate, Color, COD, BOD, TOC) make a single platform adaptable across diverse sample matrices—from clean drinking water to heavy industrial wastewater.
User-Friendly Interface: Equipped with a simple menu structure and touch screen interface.
Streamlined Workflow: Accessing information or customizing an analysis routine are easily accomplished with the simple interface.

Specifications

MEASUREMENT
Measured variables	UV Color (Hazen scale or Platinum-Cobalt scale)
Measuring principle	The xenon lamp produces a UV light radiation that pass through the sample water in a quartz measuring cell. Measurement of water color by absorbance at 350nm expressed in Hazen scale or Platinum-Cobalt scale.
Measuring range	0 to 500 Pt-Co units (0 to 500 Hazen units) All derived higher range using internal dilution (up to 40 times dilution).
Reproducibility	± 2 % of reading for low values < 10% f.s.
Accuracy	± 5 % of reading or ± 1 Pt / Co (whichever is the greater)
Analysis frequency	Programmable by the user
Automatic functions	Calibration, cleaning, dilution
Datalogger	Integrated with USB download (saved as .csv)

SAMPLE & STREAMS
Sample	Pressure-free from overflow vessel Temperature: 41 - 122 °F (5 to 50 °C) Flow Rate: 80 to 500 mL/min Connection: 6 mm (¼-in.)
Drain	Pressure-free, atmospheric drain Connection: 12 mm (½-in.)
Number of streams	1, 2 with integrated switching valve
Maintenance frequency	Cleaning pump tubing every 70 h (8-12 months) Depending on configuration: Sample pump tubing and valves tubing replacement every 4 months

ELECTRICAL
Power supply	110-230 VAC , 50/60 Hz , 80VA - optional 24 VDC
Output signals	N. 2 analog output 4-20mA , serial com. Modbus RTU RS485
Alarms	4 SPDT programmable potential free relays, N.O. or N.C.

PHYSICAL & ENVIRONMENTAL
Dimensions (H x W x D)	606 x 380 x 209 mm (23.6 x 15.0 x 8.2 in)
Weight	Approx. 20 kg (44 lbs)
Operating temperature	5 - 45 °C (41 - 113 °F)
Working conditions	Humidity: 10 to 90% non-condensing (indoor use, outdoor installation only possible with protective cabinet or shelter not included)
Cabinet	Cold-rolled steel painted with epoxy powder
Protection grade	IP54
Mounting	Wall mount (standard), bench top support or panel mount (options).