Optical Dissolved Oxygen Sensor
- Product Name: Optical Dissolved Oxygen Sensor
- Product brand：FLUIDINGS
The Fluidings optical DO sensor is coated with a luminescent material. Blue Light from an LED strikes the luminescent chemical on the sensor. The luminescent chemical instantly becomes excited and then as the excited chemical relaxes, it emit red light. The red light is detected by a photo diode. The time it takes for the chemical to return to a relaxed state is measured by referring an independent red led light. Oxygen has a dampening effect on this reaction. The oxygen concentration is proportional to the time it takes for the luminescent material to return to a relaxed state.
Features
- Smart sensor retains all calibration in the sensor
- Membrane less, no electrodes design
- Flow Independent and No oxygen consumption
- No warm-up time required
- Easy to store, air or water are all ok
- User-replaceable sensor cap
- Low drift and long life time
- All made by Broadsensor, including fluorescent film
- Support leakage alarm and salinity compensation
- Digital output, support RS485 Modbus protocol
- POM, SS316, TA body are selectable
| Measurement Method | luminescence quenching technique |
| Range | 0-20mg/L or 0-200% Air Sat. |
| Resolution | 0.01mg/L |
| Accuracy | DO±0.3mg/L, Temperature ±0.3℃（0~45℃） |
| Operating temperature | 0~45℃ |
| Storage Temperature | -10~50℃ |
| Min. Detection Limit | 0.05mg/L |
| Warranty | 1 year |
| Depth | IP68, 10m Max |
| Power | DC 5~12V 15mA (normal) |
| Output | RS485 and Modbus protocol |
| Materials | Titanium, SS316(default), POM |
| Dimensions | Length 186mm, diameter 22mm |
| Flow rate | < 3 m/s |
| Response time | Minimum 45s T90 |
| Field life* | Sensor 2 years or greater, sensor cap 1.5 years or greater |
| Recommended Calibration maintain Frequency * | Sensor 6 months |
Product Enquiry
Application Areas
Safety
Environmental Protection
Oil
Chemical
Pharmaceutical
Metallurgy
Coal Chemical Industry
Storage
Fluidings
