H551-B COD sensor is a UV absorption methodCODThe sensor, combined with many application experiences, has undergone multiple upgrades on the original basis. Not only is it smaller in size, but it also integrates the original split cleaning brush, making installation more convenient and having higher reliability.

H551-B requires no reagents, is pollution-free, and is more economical and environmentally friendly. Continuous online water quality monitoring is possible. Automatically compensates for turbidity interference, equipped with an automatic cleaning device, and maintains excellent stability even under long-term monitoring.

Testing principle:

Many organic compounds dissolved in water have an absorption effect on ultraviolet light. Therefore, by measuring these organic compounds254nmThe absorption degree of wavelength ultraviolet light can measure the total amount of organic pollutants in water.H551-BThe sensor uses two light sources, one for254nmUltraviolet light, all the way365nmUV reference light can automatically eliminate the interference of suspended substances, thereby achieving more stable and reliable measurement values.

Sensor features:

Digital sensors,RS-485Output, supportMODBUS

No need for reagents, no pollution, more economical and environmentally friendly

MeasurableCOD、TOCParameters such as turbidity and temperature

Automatically compensates for turbidity interference and has excellent testing performance

Equipped with a self-cleaning brush, it can prevent biological attachment and has a longer maintenance cycle

Technical parameters: