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Basic Principle :

Online Effluent Monitoring System

MS 4111 UVI Water Quality Analyzer

MODEL: MS-4111

Basic Principle :
  • Capable for real-time adsorption spectrum of water pollutants ranging from 200nm to 800nm
  • Requires no reagents, so it can save operating costs
  • Free from the interference of chloride ion
  • Adopts full-spectrum measurement and chemo metric algorithm analysis
  • Online Effluent Monitoring System


    Basic Principle :

    This instrument adopts the pulse xenon lamp as light source and the ultraviolet optical fiber spectrometer as detector; is capable for real-time gathering of absorption spectrum of water pollutants ranging from 200nm to 800nm and real-time analysis of the content of water pollutants by means of chemo metric algorithm technology. Optical path as shown below:

    Instrument Dimension Drawing: Measuring Probe:  
  • It requires no reagents, so it can save operating costs and will cause no secondary pollution.
  • The response is quick (about 2 seconds). It is suitable for the occasion where high real-time performance is required, such as industrial process analysis.
  • Free from the interference of chloride ion.
  • It adopts full-spectrum measurement and chemo metric algorithm analysis, which in comparison with the simple dual wavelength background subtraction technology, can measure more parameters and is less likely to be influenced by the compositional change of waste water.
  • All components are independently researched and developed.
  • It adopts pulse blowing method to clean the pollutants on the two window surfaces.
  • The instrument probe in the water measured organics in the water by means of xenon lamp. The calculation of the spectrum obtained after each measurement will produce a measured value, which will be transmitted to the control box and displayed
  • Optical Fiber on the main interface. One measurement only takes several dozens of seconds. Meanwhile, in the interval of meanwhile, in the interval of measurement, the instrument will be automatically cleaned to prevent contaminants from being deposited on the surface of the lens.
  • Online Effluent Monitoring System



    Technical Specification:

    Measurement Methods
    UV/Visible DOAS (Differential Optical Absorption Spectroscopy)
    Measurement Range As per customer required
    Method Uv/visible differential optical absorption spectroscopy wavelength range 200nm to 800nm
    Accuracy = 10%
    Repeatability = 2%
    Linearity 2 % FS
    Measurement Interval 1-30mins (settable)
    Zero drift <1% FS
    Span drift The shortest 60 seconds, the cycle can be set
    Control Box Size Can be adjusted according to the site condition
    Working temp 5C~45C
    Weight Ip65 (secondary instrument)
    Probe Depth <10m
    Protection Class IP68
    Interface RS232/RS485(Baud rate can be set), 24-20mA output
    Operation and storage temperature 5kg

    Power supply

    12-24 VDC (10%)
    Output 2 *4-20mA output (optional), 2* digital input, RS232/RS485
    IP code IP68
    Others Auto cleaning, data record
    Interface digital Ethernet (TCP/IP), RS-232 or RS-485 (Modbus RTU)

    Power consumption

    < 8 W
    Environmental Conditions  
    Sample temperature +2...+40 C
    Ambient temperature +2...+40 C
    Inflow velocity 0.1-10m/s
    Performance characteristics  
    Maintenance effort Typically < 0.5 h/month
    Calibration/maintenance interval 24 months
    System Compatibility Modbus RTU
    Guarantee 1 year (EU: 2 Years)
    Max. pressure with SubConn 30 bar
    Max. pressure with fixed cable 3 bar
    Max. pressure in flow cell 1 bar, 2-4 L/min
    Protection Type


    Structural design  
    Housing material Stainless steel (1.4571/1.4404) or titanium (3.7035)
    Weight stainless steel ~3 kg (with 10 mm path)
    Weight titanium ~2 kg (with 10 mm path)
    Installation Requirements:  

    The analyzer includes two parts: the control box and the probe. The control box is installed in the analysis cabin and the probe is submerged in the water and fixed by means of mounting bracket; the two parts are connected via cable. The control box provides power supply to the probe and at the same time receives the measurement value from the probe and displays them on the interface.




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