Digital Optical Dissolved Oxygen Sensor DOG-209FYD
The DOG-209FYD dissolved oxygen sensor utilizes advanced fluorescence measurement technology. When blue light is emitted by the phosphor layer, a fluorescent substance is excited to emit red light. The time it takes for the substance to return to its ground state is inversely proportional to the concentration of oxygen.
This optical method ensures stable data and reliable performance without oxygen consumption or interference. The installation and calibration processes are simplified, making it widely applicable for online DO monitoring in sewage treatment plants, water plants, surface water, industrial process water, and aquaculture industries.
Technical Features
- Equipped with a new oxygen-sensitive film for superior reproducibility and stability.
- Breakthrough fluorescence technique requiring virtually no maintenance.
- Customizable automated prompt messages for user maintenance.
- Hard, fully enclosed design for enhanced durability in harsh environments.
- Simple and reliable interface instructions to minimize operational errors.
- Visual warning system providing critical alarm functions.
- Convenient on-site installation with plug-and-play capability.
Technical Specifications
| Material |
Body: SUS316L + PVC (Standard), Titanium (Seawater version); O-ring: Viton; Cable: PVC |
| Measuring Range |
Dissolved oxygen: 0-20 mg/L, 0-20 ppm; Temperature: 0-45ºC |
| Measurement Accuracy |
Dissolved oxygen: measured value ±3%; Temperature: ±0.5ºC |
| Pressure Range |
≤0.3Mpa |
| Output |
MODBUS RS485 |
| Temperature Range |
Storage: -15~65ºC; Ambient: 0~45ºC |
| Calibration |
Air automatic calibration, sample calibration |
| Dimensions & Rating |
Size: 55mm x 342mm; Cable: 10m; Waterproof: IP68/NEMA6P |
Optical DO Sensor Dimensions
Installation Guide
- Mount the plate on the railing using the M8 U-shape clamp at the designated sensor position.
- Connect the adapter to the DN32 PVC pipe using glue. Thread the sensor cable through the pipe until the sensor screws into the adapter, ensuring a waterproof seal.
- Secure the DN32 tube onto the mounting plate using the DN42 U-shape pipe clips.
| 1- M8 U-shape Clamp (DN60) |
2- DN32 Pipe (OD 40mm) |
| 3- Hexagon Socket Screw M6*120 |
4- DN42 U-shape Pipe Clip |
| 5- M8 Gasket (8*16*1) |
6- M8 Gasket (8*24*2) |
| 7- M8 Spring Shim |
8- Mounting Plate |
| 9- Adaptor (Thread to Straight-through) |
Packaging & Manufacturing Capability
Frequently Asked Questions
1. What is the core expertise of your manufacturing facility?
We specialize in the R&D and production of water quality analyzers and sensors since 2007. With over 200 employees and 50+ technical patents, we produce approximately 150,000 units annually for global power plants, water treatment facilities, and pharmaceutical industries.
2. How is product quality guaranteed?
We implement a strict quality control process, including 100% OQC (Outgoing Quality Control) for all products. Customers are provided with testing pictures and videos prior to shipping to ensure full transparency and reliability.
3. What types of water quality parameters can your sensors monitor?
We provide complete solutions for pH, COD, BOD, conductivity, Dissolved Oxygen, Turbidity, TSS, Residual chlorine, Ammonia, Nitrate, and Water Hardness, including both specialized analyzers and high-precision sensors.
4. Why choose these sensors over other suppliers?
With over 20 years of R&D experience, we offer a one-stop solution backed by thousands of project references. Our team provides 24-hour after-sales support and technical training, alongside full OEM & ODM service capabilities.
5. What are the available payment and delivery terms?
We support a wide range of Incoterms including FOB, CIF, EXW, and DDP. Payments can be processed via T/T, Credit Card, PayPal, and Western Union in multiple currencies including USD, EUR, and CNY.
6. In which languages is technical support available?
To support our global clientele effectively, our technical and sales teams provide professional services in English, Chinese, Spanish, and Korean.
Ocent Monitor
