Портативный Измеритель Растворенного Кислорода Rs485, онлайн обработка воды

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Product Overview


DO Sensor Rs485 RDO-206A

Product Overviews

RDO-206A integrated on-line fluorescence dissolved oxygen sensor is designed and fabricated based on the quenching principle of excited fluorescence by specific substances in physics. The blue light emitted by the light emitting diode (LED) irradiates on the fluorescent substance on the inner surface of the fluorescent cap, and the fluorescent material on the inner surface is excited and emits red light. by detecting the phase difference between the red light and the blue light and comparing it with the internal calibration value, the concentration of oxygen molecules is calculated, and the final value is automatically compensated by temperature.




• No electrolyte is required and will not be polarized.

• No oxygen consumption, not affected by flow rate.

• Built-in temperature sensor, automatic temperature compensation.

• Free from interference by chemicals such as sulfides

• Small drift, rapid reaction, more accurate measurement.

• Maintenance-free, long service cycle, lower cost of use.

• Simple replacement of fluorescent cap.





Measuring principle

Fluorescence method

Range ability

0~20mg/L (0 ≤ 200% saturation)

Resolution ratio




Temperature compensation

Automatic temperature compensation(Pt1000)

Output mode

RS-485 bus, Modbus-RTU protocol

Working conditions


Storage temperature


Installation mode

Immersion mounting

Cable length

5 meters, other lengths customizable

Power dissipation



12~24VDC ±10%

levels of protection



Two-point calibration

Fluorescent cap life

Guaranteed use for one year (under normal use)

Sensor shell material

POM and 316L stainless steel




Note: The temperature induction part should be immersed below the liquid level to avoid colliding with the surface of the film head. The attachment of sediment should be avoided in the part of membrane head.


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Suitable for environmental monitoring,environment analysis,modern agriculture,sewage treatment,smart city,food and medical,water treatment,tap water otheprocess and fields.





This product includes:
User manual*1
Certificate* 1

After-Sales Service

Chemins provides the after-sale service within one year from the date of the sales, but does not include the damage caused by improper using. If you need repair or adjustment, please send it back, and the freight should be paid. When sending back, determine the good packaging to avoid transit damage, and the company will be free maintenance device damage.









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