Slideshow Items

  • acniti dissolved ozone sensor for wastewater applications
  • acniti EL-550 dissolved ozone sensor for industrial and research applications
  • acniti mobile dissolved ozone sensor for calibration

Measure ozone in water

Measure ozone concentrations levels from 0-20 mg/L precisely in water. The unit measures ozone concentration with UV light, the sensor has a built-in self-priming suction pump to take in sample water and reference water. This unit is excellent for universities and research departments of companies. The sensor has a possibility to connect a recorder to collect data overtime. Furthermore, it has an ERR output and a "Hi Lo" output.


Ozone has a maximum absorption band near the wavelength of ultraviolet at 253.7 nanometers. A low-pressure mercury lamp light source has an emission line spectrum at 254 nm. By irradiating ozone with this wavelength, the amount of light without ozone gas (I0) and the amount of light with ozone gas (IX) are Lambertian. Lambert law : when an area element is radiating as a result of being illuminated by an external source, the irradiance (energy or photons/time/area) landing on that area element will be proportional to the cosine of the angle between the illuminating source and the normal.

The ozone concentration is obtained from Beer-Lambert law, and compared with a standard device calibrated by the iodine titration method to make a correction and use it as the display value at the end of calibration Beer-Lambert law relates the attenuation of light to the properties of the material through which the light is travelling.

CX-100 II

The CX-100 II is the most economical solution to measure dissolved ozone and other dissolved components such as trichloroethylene, tetrachloroethylene, 1.1.1 Trichloroethane, Carbon Tetrachloride, Ammonia (Ammonium ions), Hydrogen Sulfide. The unit is easy to carry as it is battery powered. It can measure accurately water temperatures from 5°C to 35°C or 41°F to 91°F. Acniti recommends the CX-100 II for calibrating the ELP-200.

If you would like to read more about the CX-100 II read the blog post.

Measure accurately ozone levels in water

  • Ozone water concentration sensor 0-20 mg/L
  • For high precision measurement of ozone concentrations
  • Calibration performed automatically and can be set to frequent or infrequent calibrations
  • Excellent ozone sensor for universities and research and development departments


  • Model nameEL-550 Series
    Model numberEL-550
    Spec sheetEL-550 Series
  • Model nameEL-610 Series
    Model numberEL-610
    Spec sheetEL-610 Series
  • Model nameELP-200
    Model numberELP-200
    Spec sheetELP-200
    Minimum flow / minute 0.5 Liter0.1 Gallon
    Maximum flow / minute 1.0 Liter0.3 Gallon
    Minimum flow / hour 30 Liter7.9 Gallon
    Maximum flow / hour 60 Liter16 Gallon
    water temperature minimum5 ℃41 ℉
    water temperature maximum30 ℃86 ℉
    Ambient temperature minimum5 ℃41 ℉
    Ambient temperature maximum40 ℃104 ℉
    Relative humidity minimum0 %0 %
    Relative humidity maximum90 %90 %
    Unit phase Ø voltageAC 100~240V 50/60Hz
    Unit power consumption5 VA
    Water inletFitting straight tightening joint stainless steel
    Dimensions & weightMetricImperial
    Dim. (w) x (d) x (h)125 x 81 x 560 mm4.9 x 3.2 x 22.0 inch
    • Dissolved ozone analyzer for sewage.
    • Measures dissolved ozone through a gas-permeable membrane, not easily affected to residual chlorine and dissolved organic substance.
  • Model nameCX-100II Dissolved Matter Detector
    Model numberCX-100II
    Spec sheetCX-100II Dissolved Matter Detector
    water temperature minimum4 ℃39 ℉
    water temperature maximum30 ℃86 ℉
    Dimensions & weightMetricImperial
    Dim. (w) x (d) x (h)225 x 105 x 240 mm8.9 x 4.1 x 9.4 inch
    weight2 Kg4.4 lbs.
    • It is very small and lightweight and suitable for on-site measurement.
    • Since it is aerated in a closed container, it can measure even low concentrations with high sensitivity.
    • Calibration (standard solution) is not required during measurement
    • The sample collection volume is as small as 10 or 50 mL.
    • There is no need for temperature compensation, and measurement variations among operators have been reduced.
    • Almost unaffected by coexisting substances in the sample.
    • The cleaning filter is not affected by ambient gas.
    • Dissolved ozone, trichlorethylene, tetrachlorethylene, dissolved sulfide, and ammonia can be measured simply by changing the detector tube.

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