Quickly and accurately measure COD in surface water, medium water, municipal sewage and industrial wastewater, direct reading; support curve automatic correction and automatic preservation; support historical data storage, accurately store 4000 data; cold light source, narrowband interference, light source lifetime 100,000 hours; memory 99 curves, of which 5 standard curves and 94 extension curves; using colorimetric method, the results are accurate.
快速、准确测定地表水、中水、城市污水及工业废水中COD,浓度直读；
支持曲线自动校正并自动保存；支持历史数据存储，可**存储4000个数据；
冷光源、窄带干涉、光源寿命10万小时；
内存99条曲线，其中内存5条标准曲线、94条扩展曲线；采用皿比色方式，结果准确 .
[Measurement item] COD [Measurement range] 5-5000mg/L (segmentation) [Measurement accuracy] ≤±5% [Measurement time] 20 minutes [repetition] ≤±5% [Light source life] 100,000 hours [Optical stability] ≤0.001A/5 minutes [Anti-chlorine interference] [Cl-]<1000mg/L has no effect [Cl-]<4000mg/L (optional) [Colorimetric method] colorimetric tube, cuvette [Storage Data] 4000 [Number of curves] 99 [Display mode] LCD [Communication Interface] RS232 [Power supply method] 220V [Batch amount] 12 water samples [Product Model] 5B-3C [Product Name] Chemical Requirements (COD) Rapid Tester Rapid and accurate determination of COD in surface water, intermediate water, municipal sewage and industrial wastewater, direct reading; Support curve automatic correction and automatic save; support historical data storage, can accurately store 4000 data; Cold light source, narrow-band interference, and light source life of 100,000 hours; 99 curves of memory, including 5 standard curves and 94 extended curves of memory; using colorimetric method, the result is accurate.