SH-UVCOD200 COD digital probe

SH-UVCOD200 COD digital probe

Overview

SH-UV COD-200 is a dual-beam COD intelligent digital probe, which effectively reduces turbidity interference through compensation; it comes with a cleaning brush to avoid the influence of adherents and air bubbles on the measurement. The probe adopts RS485 interface and standard Modbus protocol, the measurement data can be converted into COD, BOD, TOC, etc., rapid response to the water body changes. Differential optical detection, with temperature compensation, high signal accuracy and good stability.

 

Product features

• Self-cleaning function removes light window stains and air bubbles, maintenance-free
• Dual optical path detection, automatic deduction of turbidity interference on COD detection
• Corrosion-resistant housing, waterproof grade IP68, can work underwater for a long time
• RS485 communication interface, standard Modbus protocol for easy integration.

 

Technical specifications

Working principle	Dual-wavelength ultraviolet absorption
Meas. wavelength	254nm, 365nm
Measurement range	COD: (0~100/500) mg/L Other ranges can be customized Turbidity: 100NTU (0~100 mg/L) 600 NTU (0~500 mg/L)
Turb. comp. range	50 NTU (0~100 mg/L) 200 NTU (0~500 mg/L)
Repeatability	≤1 %
Accuracy	≤5 %
Zero drift (24h)	±1 % F.S.
Range drift (24h)	±3 % F.S.
Detection limit	1 mg/L
Resolution	0,1 mg/L
Protection class	IP68
Comm. interface	RS485, protocollo standard Modbus, baud rate 9600
Dimensions	(0-100) mg/L: (φ33*236) mm, cable 10 m (customizable) (0-500) mg/L: (φ33*221) mm, cable 10 m (customizable)
Materials	316 Stainless-steel/Titanium alloy available
Weight	1 kg
Mounting threads	Upper NPT3/4 thread
Operating voltage	12/24 Vdc
Power consumption	0.9 W (motor brushes rotating), 0.4 W (motor brushes not working)
Cleaning method	Mechanical brush
Calibration period	1~3 months
Operating temp.	(0~50) °C

 

Product applications

Environmental surface water, municipal sewage, industrial wastewater