Product Description

EZ Series Nitrate + Nitrite Analyzers: Online Colorimetric Analysis of Nitrate + Nitrite in Water

Results you can rely on

EZ1000 Nitrate + Nitrite Analyzers achieve excellent precision and accuracy. At the heart of the colorimeter there is a compact photometer assembly developed especially for the EZ Series. Consumption of reagents is reduced by low volume analysis, yet high sensitivity is assured by a long optical path length. The limit of detection is in the low µg/L range.

Smart automatic features for calibration, validation, priming and cleaning are embedded in the controller software and contribute to analytical performance, maximized uptime and negligible operator invervention. Precision micropumps dose all reagents. Sample lines and analysis vessel are cleaned with demineralized water to eliminate cross contamination between samples. Electronic and wet-chemical part of the analyzer are strictly separated. A transparent door allows for instant visual inspection of the wet part.

The EZ Series Online Analyzers offer multiple options to monitor Nitrate in water. Typical applications are drinking water, wastewater, surface water, process water.

The EZ1000 Series Analyzers use colorimetric analysis to measure Nitrate.

  • EZ1029 Nitrate
  • EZ1301 Nitrate & Nitrite

Standard measuring range:
Nitrate: 0.2 – 10 mg/L NO₃-N
Nitrite: 1 – 100 µg/L NO₂-N


  • Multiple stream analysis (1-8 streams) reducing cost per sampling point
  • Analogue and/or digital outputs for communication

Nitrate and Nitrite can also be measured in combination with Total Nitrogen. For this option please check the EZ7700 Series.

Some applications may require the use of a sampling/filtration or a external dilution system for sample preconditioning. For this option please check the EZ Series Sample Preconditioning page.

Need support or a different configuration for your online Nitrate analyzer? Please contact us.

For more information, please visit our website and download our Technical Brochure.

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