Combi Perfect Match 6525 Manual do Utilizador descarregar pdf (Página 9)

possibilities in high-precision analysis

Flexible electrode mechanism

By using a new flexible electrode, the

EMGA-621W can be used for large or

small crucibles of different shapes. By

using the crucible that best matches the

size of the sample operating costs can

be reduced. It is also easy to set the

analytical conditions to match each cru-

cible.

Dual mechanism for introducing

Sn flux

HORIBA's dual sample/flux introduction

mechanism is a logical device that

includes an exclusive Sn flux inlet, often

used for hydrogen analysis, and a sepa-

rate sample inlet. It also incorporates a

sequence for low-temperature outgass-

ing of the flux in advance. Besides solv-

ing the problem of the excessive disper-

sion of Sn, thereby allowing outgassing

of the Sn flux at a suitable temperature

range, this unique new mechanism

makes the most effective use of Sn and

ends the influence of the blank on ana-

lytical precision.

0 1000 2000 3000(;)

VERTICAL SCALE

594

500

400

300

200

100

SEC

0

Temperature-programmed analysis Hydrogen

Sample : Metal-hydride

Furnace control : Automatic temperature hold function

HYDROGEN SIGNAL

INTEGRAL

0.4500

1.0

H-INT

temperature

temperature

hydrogen extraction curve

T

Sample Flow

CO,N2,H2

extraction

furnace

carrier

gas

Ar

graphite

crucible

dust filter

linechangeover (manual)

linechangeover (automatic/manual)

shows existing gas.

purge gas line

high-temperature

oxidizing reagent

(CuO)

coexisisting gas

compensation

mechanism

normal

tempereture

oxidizing

reagent

decarbrizer dehydrator

column bypass

mechanism

separation

column

flow rate

controller

H

2 detector

(TCD)

flow meter

CO2,NO2,H2O

CO

2,N2,H2

CO2,N2,H2O

N2,H2

N2,H2O

N

2,H2

N2

8

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