美国LECO力可氧氮氢分析仪ONH836（氧氮氢联测仪）系列硬件部分
特点和优势
1、炉头区域LED照明系统
2、炉头快速拆装的粉尘过滤装置
3、装有自动旁路阀的可快速拆装氧水捕集装置
4、**的动态流量补偿（DFC）保证热导池气体流量、压力恒定
5、改进的红外检测池技术
新红外池的恒温绝热技术消除了外界环境温度的干扰
长寿命的红外发射光源和无漂移的电路设计保证红外检测池的长期稳定
氧高低双量程采用3个碳红外检测器，同时检测一氧化碳和二氧化碳，保证准确定量
6、高效脉冲炉冷却系统
强力内循环水冷装置
双直流风扇保证持续冷却，不受电压波动的影响
新电极炉头设计，提高脉冲炉热交换效率
7、全自动分析系统（可选）
自动清扫装置
20位或100位全自动分析系统
高速全自动真空除尘装置直接将粉尘排至仪器外部捕集器中，消除环境污染
OHN836系列仪器采用惰性熔融法。北京LECO分析仪哪家好
Determine the instrument blank.
a. Login a minimum of 3 Blank replicates.
b. Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open.
c. Press the Analyze button on the instrument screen again, the loading head slide-block will close and the lower electrode will open.
d. Clean the upper and lower electrode manually, or, if applicable, remove thecrucible and press the analyze button to clean with the automatic cleaner.
e. Firmly place a graphite crucible on the lower electrode tip.
f. Press the Analyze button on the instrument screen, the lower electrode will close and the analysis sequence will start and endautomatically.
g. Repeat steps 2b through 2f a minimum of three times.
h. Set the blank following the procedure outlined in the operator's instruction manual.
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ONH836氧氮氢分析仪
高频燃烧红外检测技分析无机材料中的碳、硫含量。
采用惰性气体保护熔融法，提供各种无机材料、钢铁、有色金属、硬质合金、难熔金属、陶瓷等材料中宽范围的氧氮氢同时分析。
该仪器配置MS Windows®的软件接口，专为触摸屏操作定制。长期的开发研究与客户反馈相结合，这个简单方便的软件使得用户可以快速完整访问仪器控制，分析设置，故障诊断，数据报告， **提高日常分析的效率并节省用户宝贵的时间。 可选的Cornerstone® Mobile软件功能，使得用户可以在手机，便携式电脑及台式电脑上便捷的访问仪器数据，分析曲线图形以及仪器的状态，实现对仪器的遥控。
Software Features & Benefits
Cornerstone brand software is divided into four main sections—Analysis, Diagnostics, Settings, and Instrument—for simplified navigation and organization. Toolbars, sliders, and drop-down menus makeit easy to set parameters for calibration and data processing. The software also includes real-time ambient monitors, with fully animated system diagrams. Advanced diagnostic features include a thorough digital on-board manual, maintenance animations, photo illustrations, and screen captures that quickly provide the direction needed without having to refer to multiple manuals. also Cornerstone supports extended data archiving and flexible reporting capabilities. 强力内循环水冷装置。
Procedure – Powder/Chip Samples
Instrument calibration/drift correction.
Calibrate/drift following the procedure outlined in the operator's instruction manual.
Login Sample with the appropriate number of reps.
Weigh approximately *** grams of appropriately prepared sample into a *** Nickel Capsule, enter mass and sample identification into appropriate rep fields. If applicable, place the nickel capsule in the
appropriate autoloader position.
Repeat steps 3c through 3i for sample analysis.
简化日常分析所需的炉头进样部分机械维护工作。北京LECO分析仪哪家好
Sample Preparation
Typically, titanium and zirconium samples are chemically etched to remove surface contamination when oxygen and nitrogen are determined. However, etching can introduce hydrogen into the sample.
ASTM method E 1409 "Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert
Gas Fusion Technique", as updated in 1996, permits either etching or abrading (filing) of the test specimen.
ASTM E 1447 "Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal
Conductivity/Infrared Detection Method" permits surface preparation by abrading (if necessary to remove
contamination). Differences in sample preparation present somewhat of a dilemma regarding simultaneous
determination of O, N, and H in titanium. However, abrading samples with a file to remove surface
contamination will yield accurate O, N, and H results. The ONH836 utilizes a high-power electrode furnace to quickly and efficiently release the target gases from within the sample, which allows for a very rapid simultaneous determination of oxygen, nitrogen, and hydrogen.
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