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Name:	UV254 COD sensor
Measuring range:	0.75 ~ 370mg/L equiv.KHP
Accuracy:	<5% equiv.KHP
Resolution:	0.01mg/L equiv.KHP
Operating Temperature:	+5 ~ 45℃
Interface:	MODBUS RS485

Name	Parameter
Interface	Support RS-485， MODBUS protocols
COD Range	0.75 to 370mg/L equiv.KHP
COD Accuracy	<5% equiv.KHP
COD Resolution	0.01mg/L equiv.KHP
TOC Range	0.3 to 150mg/L equiv.KHP
TOC Accuracy	<5% equiv.KHP
TOC Resolution	0.1mg/L equiv.KHP
Tur Range	0-300 NTU
Tur Accuracy	＜3% or 0.2NTU
Tur Resolution	0.1NTU
Temperature Range	+5 ~ 45℃
Housing IP Rating	IP68
Maximum pressure	1 bar
User Calibration	one or two points
Power Requirement	DC 12V +/-5%，current<50mA(without wiper)
Sensor OD	50 mm
Sensor Length	214 mm
Cable Length	Cable Length
10m (default)	10m (default)

Modbus RS-485 output for easy system integration

Programmable auto-cleaning wiper

No chemicals, direct UV254 spectral absorption measurement

Proven UVC LED technology, long lifetime, stable and instant measurement

Measurement of SAC、COD、TOC, and BOD

Advanced turbidity compensation algorithm

Y551 UV254 COD Probe

Y551 UV254 probe features highly reliable UVC LED for light absorption measurement. This proven technology provides reliable and accurate analysis of organic pollutants for water quality monitoring at low cost and low maintenance. With rugged design, and integrated turbidity compensation, it is an excellent solution for continuous monitoring of source water, surface water, municipal and industrial wastewaters.

River, lake and reservoir monitoring

Marine environment analysis

Modern agriculture

Sewage treatment

Water supply

Aquaculture