The ND-HW (C) high-frequency infrared carbon and sulfur analyzer adopts a high-frequency induction furnace combined with a combustion infrared carbon and sulfur analysis system, which can quickly and accurately determine the carbon and sulfur content in various materials such as ordinary carbon steel, high, medium and low alloy steel, cast iron, gray cast iron, ductile iron, alloy cast iron, various iron alloys, silicon iron, manganese iron, nickel iron, lithium iron, chromium iron, rare earth metals, coke, coal, slag, catalyst, ore, etc. This product adopts advanced international and domestic technologies and is a high-tech product that integrates optoelectronics, computer science, and analytical technology, with multiple domestic technologies.



1、 Main technical parameters:



1. Analysis principle: High frequency induction furnace combustion infrared absorption method for carbon and sulfur joint measurement



2. Measurement range: Carbon: 0.00001-10.0000% (can be expanded to 99.999%)



Sulfur: 0.00001-0.3500% (expandable to 99.999%)



3. Analysis time: generally around 35 seconds (excluding sampling and weighing time)



4. Measurement pool: Carbon/sulfur measurement pool, carbon measurement (can be made into dual carbon pools according to user needs), automatic switching between high and low levels



5. Analysis error: in accordance with GB/T20123-2006 ISO15350:2000 standard



Precision: In accordance with the metrological verification regulation JJG395-97 standard



Analysis accuracy: Carbon: RSD ≤ 0.5% Sulfur: RSD ≤ 1.0%



Sensitivity: (very small reading) 0.1ppm



6. Electronic balance: online operation, non quantitative weighing of samples. Weighing range 0-100g, reading accuracy 0.0001g



7. Computer: Mainstream 19 inch liquid display



8. Working power supply: AC220V ± 10% 50Hz



9. Working environment: Indoor temperature: 10-30 ℃; Relative humidity: ≤ 80%



10. Oxygen: Purity ≥ 99.5% Input pressure 0.18MPa Oxygen carrying pressure 0.08MPa



11. Gas flow rate: Top oxygen flow rate 1.0-2.0L/min Analysis gas flow rate 3.0-4.5L/min



12. Desiccant: Efficient color changing desiccant



13. Filter agent: quartz cotton



2、 Main features:



1. High frequency induction combustion furnace:



1) Combustion system: Power 2.5KVA-3.5KVA (adjustable current/power, adjustable furnace temperature, suitable for samples of different materials), oscillation frequency 20MHz.



2) Oscillation system: Using self-excited directional coupler power feedback oscillation, 7.5KVA high-frequency power tube, military grade ceramic electronic tube, and ceramic vacuum capacitor are selected to reduce the load on the high-frequency combustion system, improve its service life, ensure consistent output power, and ensure full combustion of the sample.



3) Stable system: High precision electronic flow controller ensures stable airflow in the pneumatic system; Automatic leak detection, outdated and overcurrent alarms; Automatic detection of electromagnetic valves, lifting cylinders, and high-frequency working conditions. The key components of the entire machine are all imported components, ensuring the stability and high quality of the instrument.



4) Dust removal system: Using a 0.4 micron ultra micro porous metal filter to ensure complete separation of dust and gas. Automatic cleaning of the furnace head.