高频红外碳硫分析仪 热销国外 Kirin high frequency infrared carbon and sulfur analyzer is selling abroad
高频红外碳硫分析仪 ，主要用来检测铸铁材质中的碳硫元素。 In June 2019, Vietnam Blake International Co., Ltd. cooperated with Nanjing Kirin Scientific Instrument Group to purchase a set of QL-HW2000B high frequency infrared carbon and sulfur analyzer , which is mainly used to detect carbon and sulfur elements in cast iron materials. Kirin Zhougong personally went to foreign customers for on-site training and technical guidance. 高频红外碳硫分析仪 精度要求更高，对各种化学元素的检测参数范围要求更广，针对这一系列高标准，南京麒麟技术工程师在现场讲解交流技术，现场调试精准度都得到了客户的认可。 Because the company's testing materials are extensive and complex, it requires higher accuracy of the high-frequency infrared carbon and sulfur analyzer and a wider range of detection parameters for various chemical elements. In response to this series of high standards, Nanjing Kirin technical engineers explained the exchanges on the scene Technology, on-site debugging accuracy have been recognized by customers.
The scene of Vietnam Black Lake International Co., Ltd.
The scene of Vietnam Black Lake International Co., Ltd.
是一款能够进行快速测定碳含量和硫含量的分析设备，南京麒麟 高频红外碳硫分析仪 技术成熟，热销全国，并出口东南亚等多个国家。 The high-frequency infrared carbon-sulfur analyzer is an analysis device that can quickly determine the carbon content and sulfur content. The technology of the Nanjing Kirin high-frequency infrared carbon-sulfur analyzer is mature and sold well throughout the country and exported to Southeast Asia and other countries. At present, there are many types of high-frequency infrared carbon and sulfur analyzers in China. How to choose a cost-effective instrument that meets the requirements of users, we will describe it in the future.
I. Applicable principles for purchasing high-frequency infrared carbon and sulfur analyzers:
高频红外碳硫分析仪 品牌太多，高中低档仪器都有，作为用户购买高频红外碳硫分析仪时就要本着适合的原则，当然，也不要为了节约成本而使买回的仪器无法达到自己的需求。 At present , there are too many high-frequency infrared carbon and sulfur analyzers on the market, and there are high , middle and low-end instruments. As a user, you must follow the appropriate principle when purchasing high-frequency infrared carbon and sulfur analyzers. The instruments returned could not meet their needs. Therefore, it is recommended that users make multiple inspections to select equipment before buying the instrument.
Second, choose what oxygen control method:
The analysis principle of the high-frequency infrared carbon and sulfur analyzer is to convert carbon and sulfur elements into CO2 and SO2 gas through high-frequency induction combustion, and then detect the concentration according to the specific absorption wavelength of infrared light by CO2 and SO2 gas. Then the combustion of the carbon and sulfur analyzer is very important. The important thing here is to ensure that the oxygen control method has two points (the role of oxygen: oxygen plays the role of supporting gas and carrier gas in the entire analysis process): 1. Sample The oxygen is fully supplied during combustion, so that the carbon and sulfur components in the sample can be converted into CO2 and SO2 gas.
3. Judgment basis of sample data:
The determination of sample data can be based on the stability, accuracy and accuracy of the instrument.
1. Instrument stability:
(1) The determination of stability is based on the relative standard deviation (RSD). The method is to select the same sample to measure 7 consecutive data and calculate it according to the formula. Because it is continuous measurement data, only one instrument can be reflected. Stability within time, usually the instrument can meet the carbon: 0.00001-10.0000% (can be expanded to 99.999%) sulfur: 0.00001-0.3500% (can be expanded to 99.999%)
(2) The basis for judging long-term stability is the quality of reproducibility. Reproducibility refers to the quality of data measured by the same sample at different time periods. This time period may be one hour, one day, one week, or even one month. The long-term stability can reflect the overall performance of the instrument. Generally, the instrument with good stability can achieve at least one day of data changes without exceeding the tolerance.
2, the accuracy of the instrument:
The accuracy of the instrument is usually judged by the quality of the linearity. The concept of linearity refers to the data calibration of the instrument by the instrument manufacturer when it leaves the factory. Usually, it is smoothed by a formula into a straight line in the measurement range from low to high. The linearity directly affects the accuracy of the analysis. The high-frequency infrared carbon and sulfur analyzer uses a reference legal value, and the linearity serves as a reference. If the linearity is not accurate, the measured sample value must also be inaccurate. The linearity can be judged by taking several standard steels with different contents in the measurement range, and calibrating the instrument with the measured value of high-level standard steel. The corresponding measured value of low-level standard steel should be within the allowable error range.
3. Accuracy of high frequency infrared carbon and sulfur analyzer:
The accuracy of the instrument is usually the focus of publicity by the manufacturer. Users need to understand that the sensitivity of the CE detector and the accuracy of the instrument are different concepts. The sensitivity of the CE detector is usually very high, but the accuracy of the instrument is also affected by other factors. There are usually two ways to calibrate the instrument, one is gas calibration, and the other is solid calibration. Gas-calibrated instruments often advertise higher accuracy, but this accuracy is not suitable for routine analysis. Solid-calibrated instruments generally advertise relatively low accuracy, but solid-calibrated instruments are more suitable for users' daily use.
Fourth, pay attention to the reliability of high-frequency infrared carbon and sulfur analyzer:
The reliability index of the instrument is a very important indicator in the actual application of the instrument. The stability, accuracy, and accuracy refer to the performance indicators of the instrument's analysis data, and the reliability is an important index to measure the failure rate of the instrument. If stability, accuracy, precision, etc. are the leaves of the instrument, then reliability is the foundation of the instrument. Reliability is very important in the daily use of the instrument. If the reliability of the instrument is not good, then other indicators of the instrument will be out of the question.
Nanjing Kirin Scientific Instrument Group Co., Ltd.
June 03, 2019