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SUP-DY2900 Optical Dissolved Oxygen Sensor

SUP-DY2900 Optical Dissolved Oxygen Sensor

Optical dissolved oxygen sensors and dissolved oxygen meters, continuous measurement of dissolved oxygen concentration in water plays an important role in the field of water treatment.


A fluorescent dissolved oxygen sensor is based on the principle of fluorescence quenching. When green light shines on the fluorescent substance, the fluorescent substance will be excited and emit red light. Since oxygen molecules can take away energy, the time of exciting red light is inversely proportional to the concentration of oxygen molecules. The concentration of dissolved oxygen can be calculated by measuring the duration of red light.

No calibration is required, and the ultra-low energy consumption is considered in the design. The sensor can meet all the requirements of field operation and long-term or short-term testing. On the premise of not consuming oxygen, fluorescence technology can provide users with accurate measurement data for all measurement environments, especially those with low oxygen concentrations.



  Product  Optical Dissolved Oxygen Sensor
  Model SUP-DY2900
  Measure Range 0-20mg/L, 0-200%
  Resolution 0.01mg/L, 0.1%, 1hPa
  Accuracy ±3%FS
  Temperature Type NTC 10k/PT1000
  Auto A/manual H

-10-60℃ Resolution;

0.1℃ Correction

 Correction Accuracy ±0.5℃
 Output Type 1 4-20mA output
 Max.loop Resistance 750Ω
 Repeatblitiy ±0.5%FS
 Output Type 2 RS485 digital signal output
 Communication Protocol Standard MODBUS-RTU(customizable)
 Power Supply

AC220V±10%50Hz, 5W Max

 Alarm Relay AC250V, 3A
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