Features :

DOG-209FA type oxygen sensor improved from the previously dissolved oxygen electrode, change diaphragm into a grit mesh metal membrane, with high stability and stress resistant, can be used in a more harsh environment, maintain volume is smaller, suitable for urban sewage treatment, industrial wastewater treatment, aquaculture and environmental monitoring and other fields of continuous measurement of dissolved oxygen.

Technical Parameters :

Ultra resistant to pressure (0.6Mpa) wallop, imported (grit mesh metal membrane)

Up thread: M32 * 2.0

Measuring range: 0-20mg / L

Measuring principle: Current type sensor (polarographic electrode)

Breathable membrane thickness: 50μm

Electrode shell material: U PVC or 316L stainless steel

Temperature compensation resistance: Pt100, Pt1000, 22K, 2.252K, etc.

Sensor life:> 2 years

Cable length: 5m

Detection limit: 0.01 mg / L (20 °C)

Measurement limit: 40 mg / L

Response time: 2min (90%, 20 °C)

Polarization time: 60min

Minimum flow rate: 2.5cm / s

Drift: <2% / month

Measurement error: <± 0.01 mg / L

Output Current: 20-25nA/0.1 mg / L Note: Maximum current 3.5uA

Polarization voltage: 0.7V

Zero oxygen: <0.01 mg / L

Calibration interval:> 60 days

Measured water temperature :0-60 °C