Shandong Fengtu IOT Technology Co., Ltd
Sales Manager:Ms. Emily Wang
Cel,Whatsapp,Wechat:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China
Sales Manager:Ms. Emily Wang
Cel,Whatsapp,Wechat:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China
Model:FT-COD
Brand:fengtu
1.Principle of Online COD Analyzer
Online COD Analyzer uses potassium dichromate method for high temperature digestion, and uses photometric method to measure sample absorbance for analysis and determination.A quantitative amount of potassium dichromate solution is added to the sample. In a strong acidic medium, silver sulfate is used as a catalyst. The chloride ion concentration is reduced by a unique dilution injection technique, and a combined masking agent is used to mask high-concentration chloride ions. After high-temperature and high-pressure digestion, the COD concentration value is determined by spectrophotometry.
2. Product Features of Online COD 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 Online COD Analyzer
Measurement method: According to standard HJ828-2017 "Water quality-Determination of chemical oxygen demand-Dichromate method"
Measuring range: 0-200 mg/L; 0-500 mg/L; 0-1000 mg/L; range can be customized
Indication error: ≤±3% Detection limit: 10mg/L
Repeatability: ≤±3% Waste volume: 6mL/time
Memory effect: ≤±3% Actual water sample comparison: ±8%
Constant temperature time: 900 seconds Voltage stability: ≤±5%
Measurement cycle: 39 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 165℃, 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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