KFDO300 Online Fluorescence Dissolved Oxygen Sensor Water Quality Sensor
Characteristics
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
| Water Quality Sensor Model |
KFDO300 |
| Water Quality Sensor Measurement parameter |
Dissolved oxygen, temperature |
| Water Quality Sensor Method of measurement |
Fluorescence quenching |
| Water Quality Sensor Measurement mode |
Immersion measurement |
| Water Quality Sensor Measuring range |
Do: (0 ~ 20) mg/L or (0 ~ 200)%
Temperature: (0 ~ 60) °C
|
| Water Quality Sensor Accuracy |
± 0.3 mg/L |
| Water Quality Sensor Repeatability |
± 0.3 mg/L |
| Water Quality Sensor Resolution |
0.01 mg/L |
| Water Quality Sensor Response time |
≤60s |
| Water Quality Sensor Zero Drift (24h) |
± 0.3 mg/L |
| Water Quality Sensor Range Drift (24h) |
± 0.3 mg/L |
| Water Quality Sensor Accuracy of temperature compensation |
± 0.3 mg/L |
| Water Quality Sensor Calibration period |
Six months |
| Water Quality Sensor Temperature range |
(0 ~ 60) °C |
| Water Quality Sensor Protection level |
IP68 |
| Water Quality Sensor MTBF |
≥1440h/Time |
| Water Quality Sensor Means of communication |
RS485(Modbus RTU) , maximum baud rate 115200 bps |
Measuring Dissolved Oxygen by the Sensor Method
Measuring dissolved oxygen with a sensor and meter.
The most popular method for dissolved oxygen measurements is with a dissolved oxygen meter and sensor. While the general categories of dissolved oxygen sensors are optical and electrochemical, electrochemical sensors can be further broken down into polarographic, pulsed polarographic and galvanic sensors. In addition to the standard analog output, several of these dissolved oxygen sensor technologies are available in a smart sensor platforms with a digital output.
| Fresh water |
< 0.5 ‰ (PPT or parts per thousand) |
| Brackish water |
0.5-30 ‰ |
| Seawater |
33-37 ‰ |
| Saline water |
30-50 ‰ |
| Brine |
> 50 ‰ |
A dissolved oxygen sensor can be used in the lab or in the field. DO sensors can be designed for biochemical oxygen demand (BOD) tests, spot sampling or long-term monitoring applications. A dissolved oxygen meter, water quality sonde or data logging system can be used to record measurement data taken with a DO sensor.
As dissolved oxygen concentrations are affected by temperature, pressure and salinity, these parameters need to be accounted for 7. These compensations can be done manually or automatically with a dissolved oxygen meter or data logging software. Temperature is generally measured by a thermistor within the sensor and is acquired by the meter or data logger without prompting. Many DO meters include an internal barometer, and data logging systems can be set up with an external barometer or water level sensor for pressure measurements. Barometric pressure can also be manually input as altitude, true barometric pressure or corrected barometric pressure. Salinity can be measured with a conductivity/salinity sensor and automatically compensated for, or approximated and manually input as 7:
Calibration and operating procedures can vary between models and manufacturers. An instruction manual should be referenced during the measurement and calibration processes.
Phone +86-17719566736
Email sales@kacise.com
Location Tangyan South Road, High-tech Zone, Xi'an City, Shaanxi Province, China
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