Total Nitrogen Analyzer

1.Total Nitrogen Analyzer principle (resorcinol method)

Total Nitrogen Analyzer provides an easy-to-use method for measuring total nitrogen in a variety of liquids, providing a fast and accurate method for total nitrogen analysis.In an alkaline medium at 120°C, potassium persulfate is used as an oxidant.Not only can the ammonia nitrogen and nitrite nitrogen in the water be converted into nitrates, but most of the organic nitrogen is converted into nitrates, and then the absorbance is measured at a specific wavelength with an ultraviolet spectrophotometer.

2.Total Nitrogen Analyzer product features

The new optoelectronic quantitative technology is not affected by interference such as large chromaticity, many suspended objects, and many bubbles.It has high reliability and accuracy and strong anti-interference ability.

High detection accuracy, low measurement limit, and low long-term drift of the instrument.

It has one-click self-test function and self-diagnosis function.

It adopts a single-channel high-integrated valve set, making maintenance and cleaning simple and fast.

All-weather networking function, monitoring the operating status of the instrument anytime and anywhere.

It has alarm function, quality control function and counter control function.

It has automatic cleaning function and automatic calibration function.

It has full-point measurement, interval measurement and external control measurement.

It works automatically after power failure recovery.

Automatic prompts and automatic reset functions for faults and reagents (samples).

It has fault logging function.

Can save historical data for more than 3 years.

Satisfies the separation of cleaning liquid and waste liquid

3.Total Nitrogen Analyzer Technical Parameters

Measurement method: UV spectrophotometry for alkaline potassium persulfate digestion

Measuring range: 0-5 mg/L; 0-20 mg/L; 0-50 mg/L; range can be customized

Display error: ≤±5% detection limit: 0.01mg/L

Repeatability: ≤±3% Waste liquid volume: 6mL/time

Memory effect: ≤±1%Real water sample comparison: ±10%

Constant temperature time: 900 seconds Voltage stability: ≤±5%

Measurement cycle: 51 minutes Calibration cycle: any specified time

Maintenance cycle: ≥720h/time Maintenance workload: <2 hours/month

Reagent consumption: 3 months/500ml display output: configured with a 10.1-inch color LCD touch screen

Color rendering temperature: The recommended temperature is 125℃, which can be set according to the actual water sample condition

Data export: The measured value can be imported into the USB drive and saved in the USB drive.

Signal output: RS485/RS232/USB interface/standard 2-channel 4-20mA output/standard two-channel switching input and output

Environmental requirements: Indoors with controllable temperature, recommended temperature (5-28℃), humidity ≦90% (no condensation)

Power supply and power: (220V±22) V/AC, (50±0.5Hz), 5A, 150W

Instrument size: upper cabinet 600*450*300mm; upper cabinet 700*450*300mm