Daruifuno COD UV351-C Digital COD Sensor (1~1500mg/L, RS485, for DUC2-COD Series)

Measuring Principle: UV254 ultraviolet absorption method 

Optical distance：2.5mm 

Measuring Range(COD): 1~1500mg/L 

Resolution(COD): 0.01mg/L

Accuracy (COD): ±5% F.S. equiv.KHP 

Measuring Range(TOC): 0.4 ~600mg/L 

Accuracy(TOC): ±5% F.S. equiv.KHP

Resolution(TOC): 0.01mg/L 

Measuring Range(TU): 0~500NTU 

Accuracy(TU): ±5% F.S. Take the largerone

Resolution(TU): 0.01NTU 

Operating Temperature: 0 ~ 50℃(without freezing) 

Electric Wire: 5m (Standard)

Calibration: 1 or 2-point calibration 

waterproof level：IP68 

Working Pressure: 3Bar 

Response Time: T90 max. 10s 

Flow Rate: < 3 m/s 

Power: DC 12V-24V, current <50mA (without cleaning brush)

Output: RS485, Modbus RTU protocol

Materials：POM and 316L (Titanium can be customized)

Pleasebe note:

1) The COD and TOC value can be measured directly.

2) BOD data calculated base on measured COD data through the conversion factor.(Conversion factor model need be build by end user and need used together with our controller.)

3) COD sensor with turbidity compensation:The measured turbidity value which is mainly used to compensate for COD measurement, and the turbidity value not recommended to be used as measurement data directly