Online four nitrogen (total nitrogen, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen) analyzer

Technical indicators:

Analysis parameter: Total nitrogen
Measurement principle: alkaline persulfate digestion UV spectrophotometry
Measurement range: 0-2.5/5/20/50/200mg/l, with more range options available
Repeatability:<2%
Accuracy:<± 3% or 0.05 mg/L, whichever is greater
Detection limit: 0.03mg/L (minimum range)
Zero drift:<1% FS/24h
Range drift:<1% FS/24h
Measurement time: 21 minutes
Resolution: 0.001mg/L

Analysis parameters: Ammonia nitrogen
Measurement principle: Salicylic acid spectrophotometric method
Measurement range: 0-0.5/2.0/5.0/10.0/200 mg/l, with more range options available
Repeatability:<2%
Accuracy:<± 3% or 0.01mg/L, whichever is greater
Detection limit: 0.01mg/L (minimum range)
Zero drift:<1% FS/24h
Range drift:<1% FS/24h
Measurement time: 15 minutes
Resolution: 0.001mg/L

Analysis parameters: nitrate nitrogen
Measurement principle: UV spectrophotometry
Measurement range: 0-1.0/2.0/5.0/10/50/200mg/l, with more range options available
Repeatability:<2%
Accuracy:<± 3% or 0.05 mg/L, whichever is greater
Detection limit: 0.03mg/L (minimum range)
Zero drift:<1% FS/24h
Range drift:<1% FS/24h
Measurement time: 3 minutes
Resolution: 0.01mg/L

Analysis parameter: Nitrous nitrogen
Measurement principle: NED spectrophotometric method
Measurement range: 0-0.1/0.5/2.0/5.0/10.0/50 mg/l, with more range options available
Repeatability:<2%
Accuracy:<± 3% or 0.01 mg/L, whichever is greater
Detection limit: 0.001mg/L (minimum range)
Zero drift:<1% FS/24h
Range drift:<1% FS/24h
Measurement time: 6 minutes
Resolution: 0.001mg/L
Typical applications: surface water, municipal sewage, industrial wastewater, etc

Product Features
Remote quality control, real-time monitoring of sudden pollution accidents
● Fully automatic analysis, with adjustable cycle settings
● Automatic calibration and cleaning, with adjustable cycle settings
Ultra high precision spectrophotometer unit ensures the accuracy of analysis values
High precision injection and automatic dilution system ensure the stability of analysis values
● Full touch screen operation and display

Other indicators
Light source: Full spectrum xenon lamp
Signal output: 4-20mA, RS232/485
Working temperature: 0~45 ℃
Humidity: 10-95%
Power supply: 220 ± 10% volts, 50 ± 2% hertz
Power: Approximately 150 watts
Weight: 37-65 kilograms
Dimensions: Length * Width * Thickness=1130mm * 600mm * 310mm (standard, with reagent cabinet)
Sample conditions: no oil or suspended solids, temperature range of 2-40 ℃; Pressure range of 0.0 to 0.1 Bar; Flow rate of 1.5-3L/min
Protection level: IP54/NEMA13 enclosure; IP65/NEMA4 electronic components