Online COD analyzer

Main features: touch screen display and command input, multiple sampling and measurement modes, * design, lower failure rate, lower maintenance, lower reagent consumption, and higher cost-effectiveness. 3、 Technical indicators: 1. Method basis: GB11914-89 "Water Quality - Determination of Chemical Oxygen Demand - Potassium Dichromate" standard. Measurement range: 10 mg/L-5000 mg/L. Accuracy: not exceeding ± 10%. 4 Repeatability: not exceeding ± 5%. 5 measurement cycles: The small measurement cycle is 35 minutes. 6 sampling periods: time interval (adjustable from 10 minutes to 9999 minutes) and whole point measurement mode. Calibration cycle: (1-99) days, adjustable at any interval and any time. 8 Maintenance cycle: Generally once a month, about 30 minutes each time. 9. Reagent consumption: less than 0.35 yuan/sample. 10 outputs: 1 RS-232, 1 RS485, 2 4mA to 20mA. 11 Environmental requirements: For indoor environments with adjustable temperature, it is recommended to have a temperature range of+5 ℃ to 28 ℃; Humidity ≤ 90% RH (non condensing). 12 Power supply: AC220 ± 10% V, 50 ± 10% Hz, 5 A. 13 Dimensions: Height 1500 mm x Width 500 mm x Depth 450 mm. 14 Others: Abnormal alarms and power outages will not lose data; Touch screen display and command input; After abnormal reset and power failure, the instrument will automatically discharge residual reactants and restore working status.