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Online Electrochemical COD Analyzer |
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 Click to enlarge image
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 Model Number |
HACA-2000 |
Electrochemical COD Analyzer
When electrochemically-active bacteria oxidize organic matter, they produce electrons. These electrons are transferred to electrodes and produce an electrical current. However, when wastewater containing toxic chemicals is introduced, it reduces the activity of electrochemically-active bacteria and interferes with the normal electron transfer system of the device. This interference will dramatically change the electrical current value. This changed electrical current, expressed as a BOD value, can measure toxicity.
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Company A |
Company B |
KORBI |
General specifications |
Measurement Principle |
Ozone oxidation electrochemical reduction method |
Electrochemical oxidization method |
Electrochemical oxidization method |
Sensor |
pH electrode, ozone sensor |
Lead oxidation electrode |
Modified metal combination electrode |
Accuracy |
- Error occurred by contamination of pH electrode
-Error occurred by ozone production |
- Error occurred by contamination on lead
-coated electrode
-Not able to abrade or recover it |
Minimize error rate of contamination because the modified metal combination electrode can be abraded or recovered |
Maintenance |
Cleaning of electrode |
1 per week |
1 per week |
1 per 3 months |
Replacement of measurement electrode |
pH electrode/ 6 months |
6 months |
3 years |
Replacement of reference electrode |
Ozone sensor/ 1 year |
1 year and 6 months |
3 years |
Environmental toxic substance |
Produce lots of ozone gas |
None |
None |
Field application |
Pre-treatment system |
A filter method/ if clogging occurs, replacement is necessary |
A filter method/ if clogging occurs, replacement is necessary |
UV irradiation method using a tangential flow method: no clogging or replacement necessary |
Top water tubing |
Required |
Required |
No |
Distillation system |
Required |
Required |
No |
Air tank |
Required |
No |
No |
Manganate method or Chrome method |
Not able to convert |
Not able to convert |
Able to convert |
Time for Tech Support |
2~3 months |
2~3 months |
2 days |
Specification for Electrochemical COD Analyzer
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Model |
HACA-2000 |
Object of Measurement |
COD (Chemical Oxygen Demand) |
Type |
Ammperometric analysis (Composite electrode) |
Measurement Range |
1~200ppm (Max. 100,000ppm) |
Measurement Interval |
1min-1Hr (adjustable) |
Error |
± 5 % |
Display |
Color LCD (6") touch screen |
Printer |
Thermal printer |
Output Signal |
Isolated 4-20mA, RS 232 |
Temperature & Humidity |
0-35°C, less than 95% (RH) |
Cleaning |
Self-cleaning by flow injection |
Revision |
No voltage contact output (power, operation, malfunction) |
Power Requirement |
AC 110/220 V, 50/60Hz |
Power Consumption |
Max. 800VA |
Dimension |
600(W) x 1700(H) x 662(D) |
Enclosure |
Steel, IP5 |
Weight |
150Kg |
Sampler |
Pretreatment system equipped with UV sterilization lamp is included |
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