COD online monitoring instrument, dichromate method COD online analyzer

Description :

　　CODcr online automatic monitoring instrument

　　1、 Principle

　　Add a quantitative solution to the sample, and in a strongly acidic medium, use silver

　　As a catalyst, utilizing a unique dilution injection technique to reduce chloride ion concentration, and utilizing a combination of

　　Masking agent is used to mask high concentration chloride ions, which are then digested under high temperature and pressure using spectrophotometry

　　Measure the COD concentration value.

　　2、 Product Features

　　The new photoelectric quantitative technology is not affected by interference such as high chromaticity, suspended solids, and bubbles, with 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 click self-test function and self diagnostic function.

　　Adopting a single channel highly integrated valve group, maintenance and cleaning are simple and fast.

　　24/7 networking function, monitoring instrument operation status anytime, anywhere.

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

　　It has automatic cleaning and calibration functions.

　　Capable of whole point measurement, interval measurement, and external control measurement.

　　Automatically work after power failure and recovery.

　　Automatic prompt and reset function for faults and missing reagents (samples).

　　Fault recording function.

　　L can save historical data for more than 3 years.

　　Ensure separate discharge of cleaning solution and waste liquid

　　3、 Technical parameters

　　Measurement method: According to the standard HJ828-2017 "Water Quality - Determination of Chemical Oxygen Consumption - Dichromate Method"

　　Measurement range: 0-200 mg/L; 0-500 mg/L ； 0-1000 mg/L ； Customizable range

　　Indication error: ≤± 3% Detection limit: 10mg/L

　　Repeatability: ≤± 3% Waste liquid 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 time

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

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

　　Color rendering temperature: The recommended temperature is 165 ℃, which can be set according to the actual water sample situation

　　Data export: Measurement values can be imported into a USB drive through a USB port and saved

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

　　Environmental requirements: Temperature controlled indoor environment, recommended temperature (5-28 ℃), humidity ≤ 90% (no condensation)

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

　　Instrument size: Upper cabinet 601 * 450 * 302mm; Upper cabinet 701 * 450 * 302mm

AfterSalesService :

• COD online monitoring instrument