| Transport Package: | Box |
|---|---|
| Origin: | Jiangsu |
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This sensor is based on polarography to measure dissolved oxygenin water. The dissolved oxygen sensor is composed of cathode and anode.The cathode is platinum electrode and the anode is silver / silver chlorideelectrode. The cathode and anode are immersed in the electrolytechamber, which is isolated from the exteral measurement environmentthrough a diaphragm, Dissolved oxygen diffuses to the cathode throughthe diaphragm and is reduced on the cathode to generate current. Thereduction current is positive with the transfer rate of dissolved oxygeninto the electrolyte. At a given temperature, the current is proportional tothe partial pressure of oxygen in the water. lt can be used for thedetermination of dissolved oxygen in aquaculture river monitoring,sewage treatment, swimming pool and other water.
-Adopt the principle of polarography, the test water sample needs to maintain fluidity.
-With appropriate oxygen permeable membrane, reference electrode and electrolyte, the electrode hasbetter measurement accuracy and stability.
-Built in temperature sensor with automatic water temperature compensation function.
-Supports MODBUS /RS485 output.
| Project | Specifications |
| Sensor material | Platium cathode, silver/silver chloride reference electrode |
| Working condition | 0-40ºC |
| Temperature element | NTC 10K |
| Response time | ≤90s |
| Measuring range | 0-20mg/L, 0-200% |
| Installation mode | 3/4" NPT thread, flow-through or submersible mount |
| Cable | Standard 5 meters(OEM available) |
| Measuring principle | Two electrode polarography |
| Calibration | 2 points calibration |
| Storage temperature | 0-50ºC(Dry without electrolyte) |
| Power supply | 12~24VDC |
| Data output | MODBUS/RS485 |
| IP grade | IP68 |
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