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Online cod turbidity sensor
Model：FT-S1S
Brand：tianqiong
Online cod turbidity sensor can be used for continuous online water quality monitoring, measuring COD and turbidity based on the UV absorption method of organic matter.
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one. How Online cod turbidity sensor works
Online cod turbidity sensor can be used for continuous online water quality monitoring, measuring COD and turbidity based on the UV absorption method of organic matter.The sensor uses two light sources for measurement, one COD measurement, and one turbidity measurement.
Because organic matter dissolved in water has an absorption effect on ultraviolet light, COD values can be measured through the transmittance of the light source, and turbidity measurement can be performed automatically, and temperature compensation can be performed at the same time.
two. Online cod turbidity sensor technical parameters
| Measurement principle | UV254 absorption method Dual-source measurement |
| COD range | Default 0 to 1000 mg/L |
| Resolution | 0.1mg/L |
| Precision | ±5%, ±0.3℃ |
| NTU Range | Default 0-400NTU |
| Resolution | 0.1NTU |
| Temperature compensation | Automatic temperature compensation |
| Self-cleaning function | Equipped with an automatic cleaner to prevent bio附着, avoid window pollution, and ensure long-term monitoring stability; the automatic cleaning time and the number of cleanings can be set, with a power consumption of 0.7W. |
| Output method | RS-485 (Modbus/RTU) |
| Storage temperature | -5-+65℃ |
| Work environment | 0～50℃,≤0.2MPa |
| Installation method | 插入 installation, 3/4NPT installation thread |
| Cable length | 5m |
| Power supply | DC: 12V-24V |
| Protection level | IP68 |
| Calibration method | Two-point calibration |
| Case material | ABS+316L stainless steel |
three. Online cod turbidity sensor size/installation
1.Online cod turbidity sensor size diagram
2.Online cod turbidity sensor wiring diagram
The cable is a 5-core shielded wire:
Red line - power line black line - ground line green line - 485A white line - 485B
3.Online cod turbidity sensor installation
Note: The sensor cannot be inverted when installed, and it must be installed at least 15 degrees of tilt.
Four. Online cod turbidity sensor maintenance and maintenance
Sensor maintenance:
If the sensor needs to be cleaned, you can use warm water and an appropriate amount of detergent to clean it.
Notice:
Avoid strong vibration damage to the front of the transparent glass, and do not scratch with hard products.
five. Online cod turbidity sensor user calibration
The sensor has been carefully calibrated when it leaves the factory, and generally does not require user calibration. If the user calibration is performed, you can execute the instructions to restore the factory.
5.1 Zero Point Calibration
Invade the sensor into the container, use distilled water or purified water for the solution. After the value is stabilized for 30 seconds, perform turbidity zero-point calibration and COD zero-point calibration according to the communication instructions.
5.2 Slope calibration
Invade the sensor into the solution container, and the turbidity value is known. After the value stabilizes for 30 seconds, the turbidity slope calibration is performed according to the communication instructions.
Invade the sensor into the solution container. The COD value is known. After the value stabilizes for 30 seconds, the COD slope calibration is performed according to the communication instructions.
Address:https://www.tianqiongsensor.com/Water-quality-sensor/Online-cod-turbidity-sensor.html
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