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JQHH-6COD rapid measuring instrument
Brief description: The JQHH-6 COD rapid analyzer uses sealed catalytic digestion and colorimetric method to quickly determine the COD value in water s
Product details
JQHH-6 typeCOD rapid analyzer
JQHH-6 typeCOD rapid analyzerUsing sealed catalytic digestion and colorimetric method to quickly determine the COD value in water samples. In a strongly acidic solution, a composite oxidant and a composite catalyst are added, and the water sample is heated and digested at 165 ℃. Hexavalent chromium in the oxidant is reduced to trivalent chromium, and the concentration of trivalent chromium ions is detected at the characteristic wavelength to calculate the chemical oxygen demand (COD) value of the sample.
main features：
☆Optional setting of digestion temperature and time, automatic alarm and cooling upon completion of digestion
☆Imported high brightness light source, narrowband interference optical system, lifetime warranty
☆Calibrate and measure in three stages: high, medium, and low, resulting in more accurate results
☆Blank automatic zero deduction, * overcomes electronic drift error
☆Optical fixed frequency switch switching effectively overcomes optical drift error
☆Over temperature power-off protection function ensures the safety of the digestion system
☆Save and set multiple standard curves for faster measurement
☆Micro printer for long-term data storage
This productWidely used in fields such as environmental protection, scientific research, monitoring, and production control.
Technical parameters
temperature control |
Room temperature~180 ℃, ± 0.5 ℃ |
digestion time |
0~999min |
Anti chlorine interference |
Cl-＜2000 mg/L |
limit of detection |
5 mg/L |
measuring range |
5 mg/L～20000 mg/L |
Allowable error |
5 mg/L~100 mg/L, error ≤± 3 mg/L 100 mg/L~20000 mg/L, relative error ≤± 3% |
Repeatability error |
Relative standard deviation ≤± 3% |
Optical stability |
A≤0.001/20min |
Batch processing volume |
20Only water sample |
External dimensions |
420×350×175（mm） |
Power consumption |
≤500W |
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