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PFDO-800
PROBEST
90268090
Measurement Principle
PFDO-800 Dissolved Oxygen analyzer adopts fluorescence method to measure dissolved oxygen. The cap of the sensor is coated with a luminescent material. Blue light from an LED illuminates the luminescent chemical. The luminescent chemical instantly becomes excited and releases red light. The time and intensity of red light are inversely proportional to the concentration of oxygen molecules, So the concentration of oxygen molecules is calculated.
Features
The sensor adopts new type of oxygen sensitive membrane, with NTC temperature compensated function, whose measurement result has good repeatability and stability.
Won't produce oxygen consumption when measuring and no requirement of flow rate and stirring.
Breakthrough fluorescence technology, without membrane and the electrolyte and almost no maintenance.
Built-in self-diagnosis function to ensure the accuracy of data.
Factory calibration, no calibration required for one year and can carry out field calibration.
Digital sensor, high anti-interference capability and long-distance transmission .
Standard digital signal output can achieve integration and networking with other equipment without controller.
Plug-and-play sensor, quick and easy installation.
Measurement range | DO:0-20 mg/L or 0-200% saturation;Temperature:0-45℃ |
Measurement Accuracy | DO:±3% or ±0.3 mg/L, the bigger one;Temperature:±0.5℃ |
Resolution | 0.01mg/L |
Repeatability | ±0.3mg/L |
Pressure range | ≤0.3Mpa |
Calibration | Air automated calibration, sample calibration |
Main material | Body:SUS316L(fresh water),Titanium alloy(Ocean marine); Cover:PPS+ glass fiber;Cable:PUR |
Power supply | AC:85-500VAC;DC:9-36VDC |
Output | 3-channel 4-20mA output |
Relay | 3 relay outputs, programmed parameter & value response. |
Communication protocol | MODBUS RS485 |
Storage temperature | -15-60℃ |
Measuring temperature | 0-45℃(Non-freezing) |
Dimensions | Sensor:Dia49.5mm*L 251.5mm,Transmitter:145*125*162mm(L*W*H) |
Weight | Sensor:1.4KG;Transmitter:1.35KG |
Protection Rating | Sensor:IP68/NEMA6P;Transmitter:IP66/ NEMA4X |
Cable length | Standard:10m, the maximum may be extended to 100m |
Our digital dissolved oxygen sensor is an all-in-one online probe with integrated temperature compensation, designed for continuous dissolved oxygen monitoring in aquaculture. Built-in RS485 Modbus RTU protocol, it can easily connect to our dedicated controller or industrial control system to upload real-time DO and temperature data. Automatic temperature compensation ensures high measuring accuracy under varying water temperature. The sensor adopts durable membrane structure, resistant to water fouling and suitable for long-term underwater operation. Widely applied in shrimp ponds, fish farming, sewage treatment, surface water monitoring. We are the original manufacturer in China, offering bulk wholesale, technical support and OEM service for global buyers.
