Dissolved Oxygen Sensor
SS305-01
光学溶解氧传感器
产品亮点
● Smart sensor retains all calibration in the sensor
● Flow independent with no oxygen consumption
● Easy to store
● Low drift and long lifetime
● Supports leakage alarm and salinity compensation
● SS316 and PVC standard; TC4 titanium and PVC optional
● Flow independent with no oxygen consumption
● Easy to store
● Low drift and long lifetime
● Supports leakage alarm and salinity compensation
● SS316 and PVC standard; TC4 titanium and PVC optional
产品概述
The SpeSense optical DO sensor is coated with a luminescent material. Blue light from an LED excites the luminescent chemical; as it relaxes, it emits red light detected by a photodiode. The relaxation time is referenced to an independent red LED. Oxygen dampens the reaction, so oxygen concentration is proportional to the time required for the luminescent material to return to its relaxed state.
| Item | Specification |
| Measurement Method | Luminescence quenching technique |
| Range | 0-20 mg/L or 0-200% Air Sat. (default); 0-50 mg/L or 0-500% Air Sat. (optional) |
| Resolution | 0.01 mg/L |
| Accuracy | 3% of reading or ±0.3 mg/L, whichever is greater |
| Operating Temperature | 0-45 °C |
| Storage Temperature | -10-50 °C |
| Minimum Detection Limit | 0.05 mg/L |
| Warranty | 1 year |
| Depth | IP68; 10 m maximum |
| Power | DC 5-12 V, 15 mA normal |
| Output | RS485 and Modbus protocol |
| Materials | SS316 (default), titanium (optional) and PVC |
| Dimensions | Length 186 mm; diameter 22 mm |
| Response Time | Minimum 30 s, T90 |
| Field Life* | Sensor ≥2 years; sensor cap ≥1.5 years |
| Recommended Calibration / Maintenance Frequency* | Sensor: 6 months |
