Shanghai Boqu Instrument Company

The Membrane Difference of DOG-209F and DOG-209FA Dissolved Oxygen Sensor 1. DOG-209F and DOG-209FA ,the both is all polarography 2. Main difference of the both is the membrane, DOG-209F is with common DO membrane, DOG-209FA is with steel mesh DO membrane. 3.Compere with DOG-209F, DOG-209FA is more suitable for harsh environment ,like dirty water with many particles .  4.So DOG-209FA will have better performance and long working life in harsh environment than DOG-209F.

DOG-209FYA 0~20mg/L Optical Fluorescence 4-20mA ppb ppm Dissolved Oxygen Sensor Features of Optical Dissolved Oxygen Sensor DOG-209FYA type oxygen sensor improved from the previously dissolved oxygen sensor, change diaphragm into a grit mesh metal membrane, with high stability and stress resistant, can be used in a more harsh environment, free maintenance, suitable for urban sewage treatment, industrial wastewater treatment, aquaculture and environmental monitoring and other fields of continuous measurement of dissolved oxygen. Technical parameters of Fluorescence Dissolved Oxygen Sensor 1. Description: Optical dissolved oxygen sensor CPVC(or PVC)/ Stainless Steel 316 body with replaceable membrane cap module. M9 male connector, IP-68 2. Range: DO: 0-20mg/L Working temperature: -5 to 50℃ Sat. %: 0-200% 3. Accuracy: DO: ±0.1mg/L Temperature: ±0.2℃ Sat.%: ±1.0% 4. Response Time: 30 second to 90% (T-90), 60 seconds to 100% 5. Expected Luminophore Module Life: 2...