Online Hexavalent Chromium Analyzer KHC600
Technical Specification of Hexavalent Chromium Analyzer
| Model | KHC600 |
| Monitoring Parameter | CR (VI) |
| Method | Diphenylcarbazide Spectrophotometer |
| Range | (0.005-1) mg/L and (0.005-10) mg/L were expandable |
| Display unit | 12232 dot matrix display, 7-inch LCD touch screen dual display |
| Measurement mode | Manual measurement, continuous measurement periodic measurement, fixed-point measurement and automatic calibration measurement
Sample check |
| Measurement period | Anywhere from 30 minutes to 24 hours |
| Zero Drift | ≤ ± 5% F. S |
| Range Drift | ≤ ± 5% F. S |
| Repeatability | ≤5% |
| Indication error | ≤ ± 5% |
| MBTF | > 720 hours |
| Stored data | Five years of data storage |
| Communication interface | Route 24-20ma, Route 1 RS232, Route 1 RS485 |
| Ambient Temperature | (5-35) C |
| Ambient Humidity | (65 ± 20) % Rh |
| Power Requirements | Rated voltage (220 ± 22) VAC frequency (50 ± 1) % Hz |
| Contour Dimension | 505 * 395 * 671(length * width * height unit mm) |
Principle and application of hexavalent chromium Analyzer
Chromium is one of the essential micronutrients of living things. The toxicity of chromium is related to its valence state. It is generally believed that the toxicity of hexavalent chromium is 100 times higher than that of trivalent chromium. Therefore, hexavalent chromium has been defined as one of the indicators of total quantity control in China.
Principle: under the condition of high temperature, oxidant oxidizes the chromium compound in the water sample to hexavalent chromium. In acid medium, hexavalent chromium reacts with chromogenic agent to form a purple-red complex. The absorbance of the complex is proportional to the chromium content in the water sample, the content of total chromium in water sample was obtained.
The main application scenarios are the monitoring of enterprise rainwater and sewage, the monitoring of total copper content in municipal pipe network, pumping station, groundwater, river water, lake water and sea water.
