SHD-COD-21 COD detector Introduction: COD (Chemical Oxygen Demand) is the amount of oxidant consumed when reducing substances in water are oxidized and decomposed under certain conditions. It is an important detection parameter for determining the relative content of organic matter in water. The COD detector uses 254nm ultraviolet light as the measuring light and 546nm green light as the reference light. It can not only measure COD concentration, but also correct the influence of turbidity on the measurement. Mainly used for monitoring municipal and industrial wastewater; Online monitoring of drinking water quality; Real time monitoring of ecological environment water quality; Monitoring of water quality in rivers, Hubo, and other areas; Coastal pollution monitoring; Monitoring of wastewater and recycled water quality; On site law enforcement. characteristic: 1. High stability: The PTFE shell material ensures mechanical strength while also possessing waterproof and corrosion-resistant properties; 2. Turbidity compensation: The built-in reference light can measure the turbidity of water bodies and calibrate the impact of turbidity on COD detection through algorithms; 3. Temperature compensation: Built in temperature monitoring system, which can calibrate the impact of temperature on COD detection in real time; 4. High sensitivity: Using a high-sensitivity photoelectric sensor, it can capture extremely weak light signals, improving resolution and measurement accuracy; 5. Extended lifespan: Using UV LED and pulse modulation to emit light can extend the lifespan of the light source; 6. Easy to operate: Plug in the power, connect the controller, and insert the detection head into the liquid to be tested to complete the detection without taking a water sample; 7. Optional handheld device: An optional handheld terminal display device can be used to read real-time detection results; 8. Pollution free: Using optical principles, no chemical reagents are required. Technical parameters: Model: SHD-COD-21 (Non Self Cleaning) Working principle: Dual wavelength UV absorption method Measuring light: 254nm Reference light: 546nm Measurement range: 0-400mg/L resolving power: 0.1 mg/L Measurement accuracy: Read value ± 5% Communication interface: RS485 bus, standard Modbus protocol Size specifications: D75mm，L148mm， 5-meter cable (customizable) Working environment: (0-45) ℃, (0-8)bar Working voltage: 9V—28V DC Protection level: IP68 Usage: Input based
Introduction: COD (Chemical Oxygen Demand) is the amount of oxidant consumed when reducing substances in water are oxidized and decomposed under certain conditions. It is an important detection parameter for determining the relative content of organic matter in water. The COD detector uses 254nm ultraviolet light as the measuring light and 546nm green light as the reference light. It can not only measure COD concentration, but also correct the influence of turbidity on the measurement. Mainly used for monitoring municipal and industrial wastewater; Online monitoring of drinking water quality; Real time monitoring of ecological environment water quality; Monitoring of water quality in rivers, Hubo, and other areas; Coastal pollution monitoring; Monitoring of wastewater and recycled water quality; On site law enforcement.
