Water quality monitoring system of Online TN Analyzer – HATN-4000

HATN-4000 is a measuring instrument that automates the ultraviolet / visible spectroscopy (thermal oxidation method) of the water pollution test method. In the pretreatment step, alkaline potassium persulfate is injected into the sample, and the sample is heated at 120°C for 30 minutes to oxidize and decompose organic and inorganic nitrogen compounds into nitrate ions. After cooling, hydrochloric acid is added to lower the acidity, and ultraviolet absorbance is measured at 220nm to measure total nitrogen. At this time, it is possible to measure more accurately by measuring the absorbance of the disturbance factor at 275nm to calibrate the measurement value. HATN-4000 not only improves efficiency by adopting patented technology and newly-developed oxidation reaction chamber, it is KORBI’s new product with sophisticated design and user’s convenience.

Characteristics

HATN-4000
  • Adoption of oxidation reaction chamber with improved efficiency
  • Application of multi-channel valve for quantitative distribution of samples and reagents
  • Built-in user-oriented operating program with enhanced security function
  • Built-in functions to enhance user convenience

Specification

    • Measurement item
      Total Nitrogen (TN)
    • Measurement method
      UV Absorption photometry
    • Measurement range
      0~100mg/L (Adjustable)
    • Wavelength
      220nm (275nm for compensation)
    • Measurement interval
      60 minutes (Adjustable)
    • Detection limit
      0.6mg/L F.S. or less
    • Accuracy
      ±2% F.S.
    • Reproducibility
      ±2% F.S.
    • Linearity
      ±3% F.S.
    • Zero/Span drift
      ±2% F.S.
    • Oxidation method
      120℃ persulfate thermal oxidation
    • Calibration
      Auto/manual calibration by standard solution
    • Sample/Reagent measuring method
      Step motor pulse control
    • Sample/Reagent distribution method
      7-port distribution control method (Fixed quantity injection with multi-channel valve system)
    • Operation system
      Windows 7 Pro
    • Output
      DC 4~20mA, RS-232C
    • Status display
      Normal operation, on calibration, error
    • Display
      Color LED 10.4″ (Touch screen)
    • Power
      AC 220V, 50/60Hz
    • Power consumption
      Average 150W(Maximum 450W)
    • Voltage regulation
      3% or less
    • Data storage capacity
      HDD 100G or more
    • Data output
      USB terminal
    • Enclosure/Size
      Steel, 1.5T (Except paint) / 645(W) × 439(D) × 1600(H) mm
    • Operating humidity
      RH 95% or less

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