Online Digital Dissolved Oxygen Sensor 4~20mA DO Meter for Sewage Water Treatment
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- Supplier: Yantai Chemins Instrument Co. Ltd.
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Product Overview
Description
RDO-406 Online Fluorescence Method for Dissolved Oxygen Sensor
The RDO-406 integrated online fluorescence dissolved oxygen sensor is designed based on the quenching principle of excitation fluorescence by specific substances in physics. When the excitation light is irradiated on the fluorescent material on the surface of the fluorescent film head, the fluorescent material is excited and emits fluorescence, and the extinction time of the fluorescence is affected by the concentration of oxygen molecules on the surface of the fluorescent film head. The phase difference between fluorescence and excitation light can be detected and compared with the internal calibration curve to calculate the concentration of oxygen molecules, and output the final value after temperature and salinity compensation.
1、No electrolyte required, no polarization
1、No electrolyte required, no polarization
2、No need to consume oxygen, not affected by flow rate
3、Built-in temperature sensor, automatic temperature compensation
4、Built-in salinity compensation, flexible parameter setting
5、Not interfered by chemicals such as sulfides
6、Small drift, fast response, more accurate measurement
7、Longer service life and lower cost of use
8、The fluorescent membrane head is easy to replace and easy to maintain
9、RS-485 interface, Modbus/RTU protocol, 4-20mA current output
10、Low power consumption and anti-jamming design
3、Built-in temperature sensor, automatic temperature compensation
4、Built-in salinity compensation, flexible parameter setting
5、Not interfered by chemicals such as sulfides
6、Small drift, fast response, more accurate measurement
7、Longer service life and lower cost of use
8、The fluorescent membrane head is easy to replace and easy to maintain
9、RS-485 interface, Modbus/RTU protocol, 4-20mA current output
10、Low power consumption and anti-jamming design
Products Description
Specification
model | RDO-406 |
Measurement principle | Fluorescence |
Measuring range | 0～20.00mg/L (0～200% saturation, 25℃) |
Resolution | 0.01mg/L，0.1℃ |
precision | ±2%F.S.，±0.3℃ |
Temperature compensation | Automatic temperature compensation (Pt1000) |
output method | RS-485(Modbus/RTU),4-20mA |
working conditions | 0～45℃、<0.2MPa |
storage temperature | -5～65℃ |
Installation method | Immersion installation |
cable length | 5 meters, other lengths can be customized |
Power consumption | 0.2W@12V |
power supply | 12～24VDC |
Protection class | IP68 |
calibration | Two point calibration |
Fluorescent film head life | 1 year (under normal use) |
shell material | 316L stainless steel |
HangZhou CHEMINS INSTRUMENT Co.,LTD was established in 2011, is a high-tech enterprise specializing in water environment monitoring.The company has a complete research, product, sales and technical service team, dedicated to the innovation and application of various water environment monitoring technologies, providing professional and comprehensive sensor solutions for river and lake water quality monitoring and marine environment monitoring.
FAQ
1. who are we?
We are based in Shandong, China, start from 2011,sell to Domestic Market(30.00%),Southeast Asia(15.00%),South
America(10.00%),Western Europe(10.00%),Northern Europe(6.00%),South Asia(5.00%),Eastern Europe(5.00%),North
America(5.00%),Africa(3.00%),Southern Europe(3.00%),Mid East(3.00%),Eastern Asia(2.00%),Central America(2.00%),Oceania(1.00%).
There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
PH meter,Conductivity meter,Turbidity sensor,COD meter,dissolved oxygen meter
We are based in Shandong, China, start from 2011,sell to Domestic Market(30.00%),Southeast Asia(15.00%),South
America(10.00%),Western Europe(10.00%),Northern Europe(6.00%),South Asia(5.00%),Eastern Europe(5.00%),North
America(5.00%),Africa(3.00%),Southern Europe(3.00%),Mid East(3.00%),Eastern Asia(2.00%),Central America(2.00%),Oceania(1.00%).
There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
PH meter,Conductivity meter,Turbidity sensor,COD meter,dissolved oxygen meter
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