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Procedure - Solid Samples

Determine the instrument blank.

Repeat steps 2b through 2g a minimum of three times.

Set the blank following the procedure outlined in the operator's instruction manual.

Instrument calibration/drift correction.

Login a minimum of 3 Standard replicates.

Weigh approximately *** grams of a calibration/drift standard, enter the mass and standard identification into appropriate replicate fields.

Note: LECO Reference Materia***o not require preparation.See preparation statement on the reference material certificate.

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Procedure – Powder/Chip Samples

Determine the instrument blank.

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 either manually or remove the crucible and press the analyze button to clean with an automatic cleaner if applicable.

Add approximately 0.05 g of *** Graphite Powder to a 782-720 Graphite Crucible.

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

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.

Procedure – Powder/Chip Samples

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

Login a minimum of three Blank reps.

Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open. Insert a *** Nickel Capsule (leave capsule open) into the open port at top of 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.

Instrument calibration/drift correction.

a. Login a minimum of 3 Standard replicates.

b. Weigh a ~1.000 gram of a calibration/drift standard, enter the mass and standard identification into appropriate replicate fields.

c. Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open.

d. Place the calibration/drift standard into the open port at the top of the loading head.

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

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简化日常分析所需的炉头进样部分机械维护工作。新疆专业分析仪厂家直销

力可ONH836氧氮氢分析仪

特征

稳固的炉头试样加载结构

试样加载过程中完全密闭，消除大气的中可能带来的杂质的污染；

简化日常分析所需的炉头进样部分机械维护工作。

可选的自动功能

上下电极自动清扫装置；

20位试样及坩埚自动进样装置。

附加功能及优点

可选六轴可旋转触摸屏幕，增强了操作的工效和直观性；

可选具有压力补偿和温度控制性能的标气检测气路；

新型气路管道减少气路连接阀，使得漏气，断路故障更少；

配置SmartLine Remote远程诊断功能。

新疆专业分析仪厂家直销