山东氧氮氢分析仪供应商

Procedure - Solid Samples

Prepare the instrument as outlined in the operator's instruction manual.

Determine the instrument blank.

Login a minimum of 3 Blank replicates.

Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open. Place a 502-344 Nickel Basket into the loading head.

Note: samples using automation should be placed in the appropriate autoloader position before starting the

analysis sequence. Once the sequence has started, the automatic analysis will start and end automatically.

Procedure - Solid Samples：

--Instrument calibration/drift correction.

Place the nickel basket containing the calibration/drift standard into the open port at the top of the loading head.

Press the Analyze button on the instrument screen again, the loading head slide-block will close and the lower electrode will open.

Clean the upper and lower electrode manually, or, if applicable, remove the crucible and press the analyze button to clean with the automatic cleaner.

Procedure – Powder/Chip Samples

Instrument calibration/drift correction.

Add approximately 0.05 g of *** Graphite Powder to a***Graphite Crucible.

Firmly place the crucible on the lower electrode tip or appropriate autoloader position.

Press the Analyze button on the instrument screen,the lower electrode will close and the analysis sequence will start and end automatically.

Repeat steps 3b through 3i a minimum of three times for each calibration/drift standard used.

736 Series: Oxygen/Nitrogen by Inert Gas Fusion

The 736 family of Elemental Analyzers is designed for routine measurement of oxygen and nitrogen content of

inorganic materials, ferrous and nonferrous alloys, andrefractory materials using the inert gas fusion technique.

These instruments feature our Cornerstone brand ® software, a custom interface designed specifically for

touch-screen operation. Developed by combining longterm research with customer feedback, this easy-to-use

software gives you complete access to instrument control, analysis settings, diagnostics, reporting, and more—without sacrificing valuable bench space.

为可**的Cornerstone 氧氮氧分析软件采用触摸屏界面使用户达到分析控制、15法设定、在线诊断、数据报告。

氧氮氢分析仪的优点

采用惰气熔融技术，同时测定氧、氮和氢元素含量

新设计封闭气路系统，优化气路循环，使氧氮氢测量更准确

可采用更廉价的氩气作为载气

催化炉温度可调，使氧的测量更加准确

气路系统都采用电磁阀控制，新增分段式漏气检测

水冷样品加样端口，有效隔绝杂质气体侵入

仪器配置和氧、氮、氢测量范围可灵活选择

新设计的高灵敏度红外检测池和热导池，有极低的检出限

分析时间短

脉冲炉功率高达8.5kw，温度3000℃

颗粒状样品无需胶囊包裹，使用经济实惠

化学试剂及管路隐藏在门后（可移除）

强大的分析软件（支持数据和应用报告导出、增加评论区及其他更多功能）。

单点和多点校正（线性回归）

可采用自来水、冷却循环水机或交换机冷却

新设计的产品可用于各类生产控制和实验室。

采用三个**的红外器检测氧含量，同时检测CO和CO2，然后在转化为CO2集中检测。山东氧氮氢分析仪供应商

Sample Preparation

Sampling and sample preparation is an important issue because traditional methods used to obtain samples for oxygen and nitrogen determination are different from those recommended for hydrogen, especially when sampling molten metal. The main difference in steel sampling procedures for oxygen/nitrogen and hydrogen is due to the mobilityof hydrogen. Special precautions must be used when sampling for hydrogen. From molten steel and iron, a sample must be quickly quenched in cold water and chilled in a refrigerant such as liquefied nitrogen or a mixture of acetone and solid carbon dioxide in order to reduce losses of hydrogen from diffusion. Losses of oxygen and nitrogen from diffusion are not a problem. A sample that is taken for hydrogen and

chilled in a refrigerant can also be used for oxygen and nitrogen determination. However, a sample that is typically taken for oxygen and/or nitrogen determination is not suitable for hydrogen determination due to hydrogen loss (diffusion). Surface contamination must be removed by filing or light grinding, using care not to overheat the sample.

山东氧氮氢分析仪供应商