Combi Perfect Match 6525 Manual de usuario descargar pdf (Pagina 8)

HYDROGEN ANALYZER

EMGA-621W

HYDROGEN

With the HORIBA EMGA-621W, the hydrogen contained in ferrous metals,

non-ferrous metals, semiconductors, or electronic materials is extracted by

heating and fusion in inert gas, and after column separation, is quickly

analysed with high precision using a high-sensitivity thermal conductivity

detector. In addition to all the outstanding basic functions of the EMGA

Series, the EMGA-621W features greatly improved wattage control of

the unique extraction furnace over a wide concentration range suited

to Al, Al alloys, Cu, Cu alloys, and other metals with a low melting point.

This high-speed and high-precision instrument also features an analytical

mechanism that supports temperature-programmed analysis for various

bonding modes, available for the first time in a hydrogen analyser.

The EMGA-621W perfectly meets all the needs of a broad range of

applications, from R & D to on-site analysis.

A unique hydrogen analyzer creating new

Analysis of hydrogen with

an improved extraction furnace

Analysis of hydrogen in various bonding

modes is now possible through a combi-

nation of the gas flow and temperature

rise methods that feature automatic tem-

perature hold and memory functions. A

separation column is used for normal

analysis when seeking the total hydro-

gen volume, but for temperature-

programmed analysis a column bypass

function (selected automatically or

manually) is available for real time intro-

duction of the generated hydrogen gas

into the detector. A compensation func-

tion for the other gases (in particular

nitrogen) generated during the extrac-

tion process is provided. It is possible to

obtain exact data for H

2 alone by detect-

ing generated gases other than H

2 after

removing the H

2 using a high-

temperature oxidising reagent, and then

comparing the results of analysis

obtained when using and not using coex-

isting gas compensation.

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Combi Perfect Match 6525 Manual de usuario Pagina 8

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