PRODUCT DESCRIPTION
Most organic matter dissolved in water is absorbent to ultraviolet light. Therefore, the content of dissolved organic pollutants in water can be accurately measured by measuring the extent to which these organics absorb UV light at 254nm. The RK500-25 COD sensor adopts two light sources, one is ultraviolet light for measuring COD content in water and the other is reference light for measuring turbidity in water. The optical path attenuation is compensated by a specific algorithm, which can eliminate the interference of particulate suspended matter impurities on the measurement results to a certain extent, thus making the measurement results more stable and reliable.
SPECIFICATIONS
| Item | Technical Specification | |
| Measurement Principle | Dual wavelength 254nm and 550nm absorption method | |
| Standard | DIN 38402 C2,DIN 38404 and HJ T191 | |
| Range | COD | 0-500mg/L,0-1000mg/L |
| Turbidity | 0-200NTU | |
| Accuracy | Âą5%F.S | |
| Resolution | 0.02mg/L | |
| Supply | DC12-28V | |
| Power consumption | When the cleaning brush is not working:<0.2W | |
| During cleaning brush operation: <1.5W | ||
| Response time | <2s | |
| Output signal | 4-20mA&RS485 | |
| Operating evironment | -5-+60°C (<0.5MPa) | |
| Cable length | 5m(default), customizable | |
| Probe material | 316L stainless steel | |
| Ingress protection | IP68 | |
| Storage | 10-60°C @20%-90%RH | |
Product Catalogue: Rika RK500-25 COD Sensor
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