GDS-HJ57 Intelligent Dilution Valve Introduction: The intelligent dilution gas distributor launched in response to the national environmental protection standard HJ57-2017 can dynamically distribute standard gases such as sulfur dioxide, carbon monoxide, and nitrogen. Equipped with 3 input channels and 1 output channel; Control the flow rate of each channel with a quality flow controller. Based on the dynamic volume method, a calibration mixed gas standard is prepared to produce standard gases at the ppm~ppb level, which can be used for carbon monoxide interference experiments in sulfur dioxide analyzers and can also be used for other analytical instruments and process control mixed gas usage needs. characteristic: 1. Complies with the HJ57-2017 calibration standard 2. Adopt high-precision and high stability mass flow controller 3. Equipped with flow mode, concentration mode, and programmable mode 4. High precision and good stability 5. High degree of intelligence 6. 7 "LCD touch screen 7. Automatically calculate dilution ratio and flow rate 8. Built in MFC calibration program 9. The entire gas path is made of polytetrafluoroethylene or 316L stainless steel pipes, with anti-corrosion and anti adsorption treatment 10. Provide the calibration certificate of China Institute of Metrology Technical parameters: Applicable type: HJ57-2017 Interference test for determination of sulfur dioxide in fixed pollution source exhaust gas Dilution gas: nitrogen Gas distribution principle: principle of mass flow mixing method Number of channels: 3 channels Flow range: Nitrogen: 10 sl/min Sulfur dioxide: 100 sml/min Carbon monoxide: 200 sml/min Concentration range ppb~100% Flow accuracy ± 1.0% F.S Repeatability: <0.25%F.S Dilution ratio: Maximum dilution ratio: 2500:1 Input pressure: 0.2~0.5MPa Operating temperature: -10~70 ℃ Humidity range: ≤ 80% RH (non condensing) Working power supply: 220VAC, 50Hz External dimensions: 430X380x178mm Weight: Approximately 7kg
Introduction: The intelligent dilution gas distributor launched in response to the national environmental protection standard HJ57-2017 can dynamically distribute standard gases such as sulfur dioxide, carbon monoxide, and nitrogen. Equipped with 3 input channels and 1 output channel; Control the flow rate of each channel with a quality flow controller. Based on the dynamic volume method, a calibration mixed gas standard is prepared to produce standard gases at the ppm~ppb level, which can be used for carbon monoxide interference experiments in sulfur dioxide analyzers and can also be used for other analytical instruments and process control mixed gas usage needs.
