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PUVCOD-900 Spectrometer COD OnLine Analyzer

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Principle of Measurement
Based on the UV absorption reaction by organic matter, the PUVCOD-900 Spectrometer COD On-Line Analyzer uses the 254 nm spectral absorption coefficient SAC254 to measure the content of soluble organic compound in the water, and it can be converted to COD values under certain conditions. This method allows continuous monitoring without any reagents.

 Main Features
 Direct-immersion probe measurement without taking

sampling and pretreatment;
 No chemical reagents, no secondary pollution;
 Short response time for continuous measurement
 The sensor has an automatic cleaning function to reduce maintenance time.

 Typical Application
 Continuous monitoring of organic load during sewage treatment, online real-time monitoring of influent and

effluent water quality of wastewater treatment plants;
 Continuous on-line monitoring of surface water, industrial effluent, and fishery wastewater.


Technical Specifications


Measuring Range

0~2000mg/l COD (2mm,optical pathop)


Accuracy



±5%


Measuring interval

Min one minute


Pressure Range



≤0.4Mpa


Sensor material

SUS316L


Power Supply



AC:85-500VAC (50/60HZ) DC:9~36VDC


Output

3-way 4-20mA

Relay


Setting three-way relays,programmed response parameter and response value.


Communication protocol

MODBUS RS485


Storage temperature



-15-65°C


Measuring temperature

0-45°C



Sensor:Diam 69mm*Length 380mm Transmitter:145*125*162mm(L*W*H)



Dimensions



Weight

Sensor:3.2KG;Transmitter:1.35KG

Protective rate


Sensor:IP68/NEMA6P;Transmitter:IP65/ NEMA4X


Cable length

Standard:10m,the maximum may be extended to 100m


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