KFDO300 online fluorescence dissolved oxygen analyzer (DO sensor) is an online water quality analyzer based on OSA optical water quality analysis platform. The integrated design adopts the most advanced oxygen sensing technology of fluorescence quenching method, the design concept of digital and intelligent analyzer, integrates the temperature detection and realizes the functions of automatic temperature compensation and digital signal conversion inside the instrument. RS485 signal output, easy networking, and system integration, widely used in surface water, pollution sources and other industries.
1) Characteristics of fluorescence dissolved oxygen analyzer
Integrated design, anti-electromagnetic interference
Built-in temperature sensor, real-time temperature compensation Support salinity and air pressure compensation
Stainless steel case, IP68 waterproof grade, suitable for various working conditions
RS485 signal output, Standard Modbus protocol, easy integration, networking
2) Technical Specifications of DO sensor
| Model | KFDO300 |
| Measurement parameter | Dissolved oxygen, temperature |
| Method of measurement | Fluorescence quenching |
| Measurement mode | Immersion measurement |
| Measuring range | Do: (0 ~ 20) mg/L or (0 ~ 200)% |
| Temperature: (0 ~ 60) °C | |
| Accuracy | ± 0.3 mg/L |
| Repeatability | ± 0.3 mg/L |
| Resolution | 0.01 MGL |
| Response time | ≤60s |
| Zero Drift (24h) | ± 0.3 mg/L |
| Range Drift (24h) | ± 0.3 mg/L |
| Accuracy of temperature compensation | ± 0.3 mg/L |
| Calibration period | Six months |
| Temperature range | (0 ~ 60) °C |
| Protection level | IP68 |
| MTBF | ≥1440h/Time |
| Means of communication | RS485(Modbus RTU), maximum baud rate 115200 bps |
