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 new product with sophisticated design and users 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) x 439(D) x 1600(H) mm
-
- Operating humidity
RH 95% or less
