COD sensor

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Principle :	UV254 ultraviolet absorption method
Output:	RS485 (Modbus protocol)
Power supply:	12V50mA (normal); 200mA (maximum, when cleaning)
Accuracy:	COD: ±3%Rd or ±5mg/L; TOC: ±2%Rd or ±2.5mg/L; Turbidity: ±5%Rd
Range:	COD: 1~1500mg/L; TOC: 0.4~600mg/L; Turbidity: 0~1000NTU;
Max. pressure:	≤1bar

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Product Description

Description

Features

Parameters

Description:

Digital COD sensor, based on UV absorption method, adopts LED dual beam structure, measures organic matter concentration in water through UV254nm and 860nm absorbance, 254nm absorbance, and uses 860nm beam to measure turbidity to reduce interference with COD value. The sensor has RS485 output, standard MODBUS protocol, and supports various terminal networking.

Features:

Plug and play on site
Using UV absorption method
No reagent consumption, low maintenance
Dual beam, high measurement accuracy
Waterproof grade IP68
Continuous monitoring of COD, real-time monitoring
Internally stores calibration data, supports offline calibration
RS485 digital interface, Modbus communication protocol

Parameters:

Product	COD sensor
Principle	UV254 ultraviolet absorption method
Range	COD: 0.75~450mg/L; 1~1500mg/L; TOC: 0.3~200mg/L; 0.4~600mg/L; Turbidity: 0~300NTU; 0~1000NTU;
Resolution	COD: 0.01mg/L; TOC: 0.1mg/L; Turbidity: 0.1NTU
Accuracy	COD: ±3%Rd or ±5mg/L, whichever is greater; TOC: ±2%Rd or ±2.5mg/L, whichever is greater; Turbidity: ±5%Rd
Output	RS485 (Modbus protocol)
Response time	10s
Calibration	One or two point calibration
Operating pressure	≤1bar
Sample velocity	<3m/s
Operating temp.	0℃～45℃
Material	POM + Stainless steel
Size	ø 50 × 214 mm
Lead interface	M16
Self-cleaning	Rubber scraper
Power supply	12V50mA (normal); 200mA (maximum, when cleaning)
Protection	IP68