Online Ammonia Analyzer, HANH-4000, is a measuring equipment designed to enable measurement of ammonia nitrogen by using the colorimetric method. The color formation reagent that is used by HANH-4000 is Hypochlorite and Salicylate substances, which are not harmful unlike the indophenols method that uses phenol. HANH-4000 continuously measures the ammonia nitrogen concentration in the water in accordance with the Standard Water Pollutant Testing Method, and it enables continuous automatic measurement of water quality in a variety of application areas such as drinking water quality management, wastewater treatment facility control, and groundwater.
Characteristics
HANH-4000
Distribution of Sample and Reagent Using Multi-channel Valves
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- Quantitative distribution of sample and reagent by using patented multi-channel valve system
Accuracy
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- Use of high-performance micro-pulse control pump
- Accurate measurement of sample and reagent through correction per channel
Immediacy & Expandability
Immediacy
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- Response within 15 minutes
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Expandability
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- Enables various water quality measurements using colorimetric method through change of only reagent and wavelength, if necessary
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Convenience in operation
Convenience
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- 3-point calibration and auto calibration function
- Easy and simple operation, self diagnosis
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Operation
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- Easy maintenance by simplification of the flow channel
- Easy operation by private-labeled operation program
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Principle
When the sample flows in to the analyzer, the ammonia nitrogen in the sample becomes NH2Cl under the Hypochlorite conditions, and after the reaction with Salicylate, 5-Aminosalicylate is colored formed with Sodium Nitroferricyanide and measured at 660nm. The absorption spectrophotometry using Salicylate method is almost same as the indophenols method, but because the harmful phenol reagent is replaced with Salicylate, safe measurement is possible.
Specification
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- Measurement item
Ammonia-Nitrogen (NH3-N)
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- Measurement method
Absorbance spectrophotometry (Salicylate colorimetric)
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- Measurement range
0~20mg/L (Adjustable)
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- Wavelength
660nm
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- Measurement interval
15 minutes (Adjustable)
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- Detection limit
0.01mg/L F.S.
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- Accuracy
2% F.S.
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- Reproducibility
2% F.S.
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- Linearity
3% F.S.
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- Zero/Span drift
2% F.S.
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- Calibration
Auto/manual calibration by standard solution
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- Detection method
Photodiode detector
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- Sample/Reagent measuring method
Step motor pulse control
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- Sample/Reagent distribution method
7-port distribution control method (Fixed quantity injection with multi-channel valve system)
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- Operation system
Windows 7 (CPU process) or more
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- Output
TCP/IP, DC 4~20mA, RS-232C
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- Status display
Normal operation, on calibration, error
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- Display
Color LED 10.4″ (Touch screen)
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- Power
AC 220V, 50/60Hz
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- Power consumption
Average 70W
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- Voltage regulation
3% or less
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- Data storage capacity
HDD 100G or more
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- Data output
USB terminal
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- Enclosure / Size
Steel, 1.5T(Except paint) / 645(W) x 439(D) x 1600(H) mm
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- Operating humidity
RH 95% or less
Application
Application Field
Surface water monitoring
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- River, lake, river water quality
- Waterworks facilities (intake station and Water plant, etc.)
Water quality TMS
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- Sewage treatment plant, Wastewater treatment plant
- Wastewater discharging facility, Rural sewage treatment facility, etc.
Process control, etc.
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- STP process management,
- IWWTP process management, etc.
