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YOKOGAWA

Yokogawa Electric Corporation

DO70G Optical Dissolved Oxygen Sensor

Model DO70G
Optical Dissolved Oxygen Sensor

Product Information

DO70G Optical Dissolved Oxygen Sensor

DO70G optical dissolved oxygen sensor is designed for using in water treatment plants such as sewage treatment works and effluent activated sludge process.

This optical sensor has a fast response time and good long term stability, and features replaceable sensor cap and cable for easy maintenance. A temperature sensor is incorporated for compensation. The DO70G sensor can be used in either the PB350G/PB360G floating ball holder or in the DOX8HS submersion type holder.


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Featuers

* A Optical DO sensor that uses a phase measurement method and realizing stable measurements over a long period of time.
* Measuring range of 0 to 25 mg/l.
* A sensor cap that is easily replaceable by anyone.

Specifications

Dissolved Oxygen 0 to 25 mg/l (ppm)
Liquid Temperature 0 to 50℃
Liquid Pressure 0 to 500 kPa
Flow speed 20 cm/s or more
Sensor for Temperature Compensation 22k NTC
Cable Length 3, 5, 10 m
Weight Sensor; Approx. 0.1 kg
Cable; 3 m; Approx. 0.4 kg / 5 m; Approx. 0.6 kg / 10 m; Approx. 1.1 kg

Performance

Repeatability 0.1 mg/l or 3% FS, whichever is greater
Temperature Compensation Error Within ±3% FS for a ±5℃ change in the range of 0 to 40℃
Response Time Within 120 sec. (90 % response)