Function:
1. Segmented direct measurementHigh and low concentrationsChemical Oxygen Demand (COD);
2. Display the measurement results on the large screen;
3. One click switching of measurement parameters;
4. Memory200 curves, standard curve, no need for adjustment, can be used directly,200 extended curves can be freely applied under different conditions such as personnel, environments, and wastewater;
5. The instrument can automatically calculate the storage curve based on standard samples;
6. Can accurately store 10000 measurement data (date, time, absorbance, measurement results);
7. Print current data and all stored historical data;
8.The digestion power is automatically adjusted according to the number of loads, achieving intelligent constant temperature control with delay protection function;
9. Equipped with a spray proof cover made of fully transparent heat-resistant material to ensure the safety and reliability of the experiment;
10. Automatic constant temperature reminder, automatic countdown reminder, timing time can be adjusted and saved freely;
11. The range of temperature adjustment for digestion from room temperature to 190 ℃ is wider for compatibility;
12. Simultaneously digest 12 water samples;
Technical parameters:
Measuring Item |
COD |
|
Measurement range |
5-1200mg/L (segmented) |
|
measuring accuracy |
COD<50mg/L,≤±10% COD>50mg/L,≤± 8% |
|
wavelength range |
COD low concentration 420nm COD high concentration 610nm |
|
Minimum detection limit |
0.1mg/L |
|
Batch processing volume |
12 water samples |
|
Repeatability |
≤±5% |
|
Light source lifespan |
100000 hours |
|
Optical stability |
≤ 0.001A/10 minutes |
|
Anti chlorine interference |
[Cl -]<1000mg/L has no effect |
|
Colorimetric method |
Colorimetric dish |
|
Store data |
10 thousand |
|
Number of curves |
300 pieces |
|
Power supply mode |
220V AC power supply |
|
Dissolving temperature |
165℃ |