Applicable Polarography Principle for DOG-208F Dissolved

Oxygen Electrode

With platinum (Pt) as cathode and Ag / AgCl as anode

The electrolyte is 0.1 M potassium chloride (KCI).

The silicone rubber permeable membrane imported from U.S. serves

as the permeable membrane.

It has silicone rubber and steel gauze.

It is featured by collision resistance, corrosion resistance, high.

temperature resistance, shape retention and other performances

Measuring range: 0-20ug/L 0-20mg/L

Electrode shell material: 316L stainless steel

Temperature compensation resistor: NTC: 2.252K 22K Ptl00 Ptl000

and so on.

Sensor life: >3 years

Cable length: 5m (double shielded)

Detection lower Limit: 0.1ug/I(ppb)(20°C)

Measurement upper limit: 20mg/l(ppm)

Response time: ≤3min(90%, 20°C)

Polarization time: >8h

Minimum flow rate: 5cm/s; 515 L/h

Drift: <3%/month

Measurement error: <±1 ppb

Output current: 20-25nA/0.01mg/L   Note: Maximum current

20-25Ua

Polarization voltage: 0.7V

Zero Oxygen: <5ppb(60min)

Calibration intervals: >60 days

Measured water temperature: 0-1300c