Features

DOG-209FA type oxygen electrode 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, maintenance volume is smaller, suitable for urban
Sewage treatment, industrial wastewater treatment, aquaculture and environmental monitoring
And other fields of continuous measurement of dissolved oxygen.
Which have the USB connector, can connect with the computer / PLC directly by the RS485.

Technical Indexes

1. Ultra resistant to pressure (0.6Mpa) wallop, imported (grit mesh metal membrane)
2. Up thread: M32 * 2.0
3. Measuring range: 0-20mg / L
4. Measuring principle: Current type sensor (polarographic electrode)
5. Breathable membrane thickness: 100μ M
6. Electrode shell material: PVC or 316L stainless steel
7. Temperature compensation resistance: PT100, PT1000, 22K, 2.252K, etc.
8. Sensor life: > 2 years
9. Cable length: 5m
10. Detection limit: 0.01 mg / L (20 degree Centigrade)
11. Measurement limit: 40 mg / L
12. Response time: 2min (90%, 20 degree Centigrade)
13. Polarization time: 60min
14. Minimum flow rate: 2.5cm / s
15. Drift: <2% / month
16. Measurement error: <± 0.01 mg / L
17. Output : RS485  
18. Polarization voltage: 0.7V
19. Zero oxygen: <0.01 mg / L
20. Calibration interval: > 60 days
21. Measured water temperature: 0-60 degree Centigrade