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QD-01SC COD rapid analyzer
The QD-01SC COD rapid analyzer is powered by a 220V power supply and is suitable for large-scale water sample testing in the laboratory. Reliable work
Product details
Product Introduction:
The instrument is designed in accordance with the national industry standard HJ/T399-2007 "Determination of Chemical Oxygen Demand in Water Quality - Rapid Digestion Spectrometric Method". The rapid closed catalytic digestion method (including photometric method) is used to determine COD by measuring the concentration of hexavalent chromium reduced to trivalent chromium. High and low concentration samples were measured using 600nm and 440nm wavelength light sources, respectively.
The QD-01SC COD rapid analyzer is powered by a 220V power supply and is suitable for large-scale water sample testing in the laboratory. Reliable work, fast calculation speed, and temperature compensation function; High precision and good repeatability.
Function:
◆ Memory with 99 standard curves, customizable and storable
◆ With data storage function, it can store 999 data (accurately save measurement indicators, time, and data)
◆ Transfer current data and all historical data to the computer
◆ Cold light source, narrowband interference, long light source lifespan
◆ Automatic calibration function
◆ Large screen LCD display, Chinese interface, Chinese button operation
Main technical indicators:
| Detection range | 10-250mg/L low range |
| 100-2500mg/L high range (dilutive determination is possible for concentrations exceeding 2500mg/L) | |
| Light source wavelength | 440nm is used for low range measurement; 600nm is used for high range measurement |
| relative error | ± 5% low range; ± 4% high range |
| operation temperature | 5-40℃ |
| Optical stability | A≤ 0.001A/60min |
| Indication error | When 10mg/L-100mg/L, ≤ ±5mg/L |
| When 100mg/L-2500mg/L, ≤ ±5% | |
| Repeatability error | When 5mg/L-100mg/L, the relative standard deviation is ≤ 2% |
| Anti chlorine interference | Cl－≤2000mg/L |
| Dimension | 320*210*100，2Kg |
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