Measurement method

• Acid potassium permanganate method
• Alkaline potassium permanganate method
• Potassium bichrornate method
• Justice for pollution test method

1. Operation

• A special feature of this instrument is the conversation-typed touch screen or users' ease of operation.
• All programs are structured for user-friendly handling and can be operated easily with simple manipulation by all users
• Reaction time control makes measurement meet the field conditions
  By realtime analysis. Oquick handling for environment change is possible
• Instrument status, COD concentration, Flow rate, and calculation result of load weight is output hourly and daily.

2. Stability

• As it performs pre-measurement everytime to decide optimum sampling volume, accurate measurement less affected by load change of COD concentration is possible
• Since KMnO4 pump decides rotational frequency and controls the fixed quantity by photoelectric detector, it has a high level of titration
• COD measurement of dilution water, blank valve with refill of reagent(zero correction), and factor calibration of KMnO4 is automatically controlled by computer, there is no influence by reagent change.
• Stable measurement is possible even with polluted sample by oxidation and reduction measurement
• Environment friendly analysis is possible by using silver nitrate which eliminate CL-ION influence(option)
• Dilution device attached, suits COD with high concentration(option)

3. Counterplot

• When malfunction or poor performance occurs, error message and LED are printed out, alarm signal waorks, and proper handling is possible.
• Able to convert to alkaline KMnO4 method by simple internal operation
• Inputs regulated value of COD concentration, easy COD control.
• When using CEMS, able to receive the result from the field and long distance