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Shandong Fengtu IOT Technology Co., Ltd
Sales Manager:Ms. Emily Wang
Tel, Whatsapp:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China

Total Nitrogen Analyzer
Model:FT-SZZD
Brand:fengtu
Product details
1.Total Nitrogen Analyzer Principle (Resorcinol Method)
Total Nitrogen Analyzer is an instrument used to analyze the total nitrogen content in water samples based on alkaline potassium persulfate digestion and UV spectrophotometry.In an alkaline medium at 120°C, potassium persulfate is used as an oxidant to convert not only ammonia nitrogen and nitrite nitrogen in water into nitrate, but also most of the organic nitrogen into nitrate. The absorbance is then measured at a specific wavelength using an ultraviolet spectrophotometer.
2. Features of Total Nitrogen Analyzer
The new photoelectric quantitative technology is not affected by interference such as large chromaticity, large amounts of suspended matter, and large amounts of bubbles. It has high reliability and accuracy and strong anti-interference ability.
High detection accuracy, low measurement limit and small long-term drift of the instrument.
It has one-button self-test function and self-diagnosis function.
Adopt single-channel highly integrated valve group, maintenance and cleaning are simple and quick.
All-weather networking function, monitor the instrument operation status anytime and anywhere.
It has alarm function, quality control function and reverse control function.
It has automatic cleaning and automatic calibration functions.
It has functions of hourly measurement, interval measurement and external control measurement.
It will work automatically after power failure.
Automatic prompt and automatic reset function for fault and reagent (sample) shortage.
With fault recording function.
Can save historical data for more than 3 years.
Meet the requirement of separate discharge of cleaning liquid and waste liquid
3. Technical Parameters of Total Nitrogen Analyzer
Measurement method: Alkaline potassium persulfate digestion UV spectrophotometry
Measuring range: 0-5 mg/L; 0-20 mg/L; 0-50 mg/L; range can be customized
Indication error: ≤±5% Detection limit: 0.01mg/L
Repeatability: ≤±3% Waste volume: 6mL/time
Memory effect: ≤±1% Actual 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: Equipped with 10.1-inch color LCD touch screen
Color development temperature: recommended temperature is 125℃, can be set according to the actual water sample conditions
Data export: The measured values can be imported into a USB flash drive and saved via the USB port
Signal output: RS485/RS232/USB interface/standard 2-way 4-20mA output/standard 2-way switch input and output
Environmental requirements: Temperature-controlled indoor environment, recommended temperature (5-28°C), 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
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