The VEOFDO1002 Series of Fluorescent Dissolved Oxygen Analyzers uses a new generation of Fluorescence Lifetime Technology and high-performance fluorescent materials. no oxygen consumption, no flow rate limitation, no electrolyte, no maintenance and calibration, no interference from hydrogen sulfide, and excellent stability. built-in temperature analyzer and automatic temperature compensation. An RS485 output can be networked without a controller.
FEATURES :
- Hydrophobic membrane and algae will not adhere to the membrane head
- Digital sensor, RS485 output, support MODBUS
- No membrane, no electrolyte, no interference, no need for frequent calibration
- No oxygen consumption, no flow restriction
- Built-in temperature sensor, automatic temperature compensation.
| Model | VEOFDO1002 |
| Principle | Fluorescence analysis method |
| Measuring range | 0~20mg/L or 0-200% saturation |
| Response time | 3 sec |
| Accuracy | 1% |
| Protection level | IP68 |
| Installation | Submersible |
| Temperature sensor | NTC |
| Temperature range | 0~50C |
| Temperature accuracy | 0.2C |
| Output | Support RS-485, MODBUS protocol |
| Power supply | DC 6~12V, current <50mA |
| Size | ?26*155 mm |
| Probe cable length | Default 5 m, customized 10m, 15 m and 30 m cable |
| Fluorescent cap life | 1 year |
| Maximum working pressure | 3bar |
| Housing material | SS316 / Titanium alloy |
The Online FDO Analyzer is a continuous water quality monitoring instrument that measures dissolved oxygen levels in water using advanced fluorescent technology for high accuracy and stability.
It uses fluorescence quenching technology — the probe’s fluorescent sensor reacts with oxygen molecules, allowing precise determination of dissolved oxygen concentration without oxygen consumption by the sensor.
It is commonly used in wastewater treatment, aquaculture, environmental monitoring, industrial processes, and water treatment plants where real-time dissolved oxygen data is critical for process control and compliance.
The analyzer offers high stability and accuracy, minimal maintenance requirement, automatic temperature compensation, RS-485 Modbus communication, and robust construction suitable for harsh field environments.
Yes, it supports RS-485 output with Modbus protocol, enabling integration with PLCs, SCADA systems, data loggers, and IoT platforms for remote monitoring and centralized control.
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