Amperometric oxygen sensor for water and wastewater applications

  • For use with analytical transmitter
  • For immersion or insertion
  • 0…20 mg/l; Max. +50°C / +122°F
  • Stainless steel sensor with rugged PTFE membrane, exchangeable electrode cartridge and temperature compensation

OPTISENS ADO 2000 – Standard version

OPTISENS ADO 2000 – Standard version

The OPTISENS ADO 2000 is a dissolved oxygen sensor with integrated temperature compensation. The amperometric sensor is used in wastewater treatment plants to monitor and control the oxygen concentration during biological treatment of wastewater. Its stainless steel housing makes the sensor also ideally suited for use in harsh environments as well as for oxygen monitoring in ground water basins, fish farming etc. Its Teflon® electrode cartridge and the large electrolyte reservoir extend the maintenance interval and minimises measurement errors. The whole electrode cartridge can be changed easily, enabling fast and easy maintenance. The OPTISENS ADO 2000 can be calibrated using the MAC 100 analytical transmitter.

Product highlights

  • Not affected by sun light
  • Wide measuring range and fast response times in all applications
  • Reduced maintenance due to easy electrode cartridge replacement
  • Long maintenance intervals due to large electrolyte reservoir
  • Calibration with the MAC 100analytical transmitter
  • Mounting option on a flexible telescopic rod (SENSOFIT IMM 2000) or via a flow-through assembly with Y-piece (SENSOFIT FLOW 2000 Y)

Typical applications

Water and wastewater industry

  • Monitoring of fresh water (e.g. in fish farming)
  • Monitoring of potable water
  • Monitoring of biological treatment in wastewater aeration basins
  • Prevention of water pollution
  • Monitoring of effluent values in the outlet

Related products


Immersion assembly for general water and wastewater treatment applications

  • For use with OPTISENS ODO/ADO/TUR 2000, TSS 3000 or sensors with NPT thread
  • Sensor connection: ¾ NPT, 1¼ NPT (female); Process connection: Telescopic rod holder mounted to handrail
  • Immersion length: flexible, max. 4 m / 13.1 ft
  • Max. +60°C / +140°F, pressureless

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MAC 100

Liquid analytical transmitter for measurements with sensors of the OPTISENS portfolio

  • Output: 3 x 4…20 mA, 3 relays (mechanical)
  • Input: max. 2 x sensor, 2 x temperature
  • -15…+55°C / +5…+131°F (ambient)
  • Robust housing for wall-mount installation

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