Product Overview

The UV METER 254 is a photometric analyser that operates without the need for reagents. It features a dual compartment enclosure and utilises a Xenon lamp as a UV light source. The meter offers automatic calibration, zeroing, and cleaning functions, a wide measuring range, and a dual streams version. Operation is via a large colour touchscreen. It is factory tested and ready for installation and operation.

Applications

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

Measured parameters: COD UV, BOD UV, TOC UV SAC254, abs 254 nm.

Main Features

• Dual compartment enclosure.
• Low operating costs – no reagents.
• Xenon lamp – UV light source.
• Automatic calibration / zeroing / cleaning.
• Wide measuring range.
• Dual streams version.
• Large colour touchscreen.
• Factory tested, ready for installation and operation.

Technical Data

Specification	Value
Measuring principle	Dual wavelength technique, 254 nm measuring and 590 nm as reference, with turbidity compensation
Measuring range	24 mm cell: 0.01 – 50 m⁻¹ equivalent to: COD (KHP) 0.15–100 mg/L, TOCeq 0.06–40 mg/L, BODeq 0.05–30 mg/L 16 mm cell: 0.01 – 100 m⁻¹ equivalent to COD (KHP) 0 – 200 mg/l 11 mm cell: 0.02 – 250 m⁻¹ equivalent to COD (KHP) 0 – 500 mg/l Up to 10,000 m⁻¹ equivalent to COD (KHP) 20,000 with internal dilution
Reproducibility	± 2.5 % on the absorbance value for samples having turbidity below 100 NTU
Analysis frequency	Freely programmable, batch near continuous analysis
Cycle time	Less than 1 minute, including conditioning before analysis cycle and rinsing after measuring
Sample - Pressure	Atmospheric
Sample - Temperature	5 – 50 °C (41 – 122 °F)
Sample - Flow Rate	80 to 500 mL/min
Sample - Connection	6 mm (¼-in.)
Drain - Pressure	Pressure-free, atmospheric drain
Drain - Connection	12 mm (½-in.)
Number of streams	Up to 2 with integrated switching valve
Outputs	2 x 4–20 mA outputs for measured data Modbus RTU RS485
Alarms	4 SPDT programmable potential free relays
Digital input	Remote start/stop, start extra cycle, skip idle time, emergency stop
Operative conditions - Temperature	5 – 45 °C (41 – 113 °F)
Operative conditions - Humidity	10 to 90% RH (indoor use only)
Installation	Wall mount (standard), bench top support or panel mount (options)
Protection grade	IP54
Power Supply - Voltage	100 – 240 VAC 50/60 Hz standard or 24 VDC (option)
Power consumption	max. 80 VA
Weight	Approx 20 Kg