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