DO Sensor – Dissolved Oxygen

This sensor measures the dissolved oxygen in the water. The measuring principle is optical and is based on an LED that excites an oxygen-reactive membrane and detects its oxygen-dependent luminescence emission by means of a photodiode.

The key features:

Dissolved oxygen measurement

Optical technology

 Temperature sensor for automatic temperature dependent compensation of the oxygen measurement

Concentration:

 Technology: optical

 Range: 0 – 23 mg/L (max: 0 – 44 mg/L)

 Accuracy at 20% O2: +/- 0.1 mg/L

 Precision at 20% O2: 0.025 mg/L

Saturation:

 Technology: optical

 Range: 0 – 250% (max: 0 – 500%)

 Accuracy at 20% O2: +/- 1%

 Precision at 20% O2: 0.25%