Endress+Hauser Analytik Jena multi EA 5000 - Sampling Modules; Auto-Injector; Figure 17 Membrane Dryer

multi EA 5000 Function and design
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4.1.2.5 Measuring gas dryer
Measuring gas is dried in accordance with the measuring method:
¡ To determine TS, TN, TC, EC/OC via membrane dryer:
The membrane dryer is mounted on the furnace. To increase drying effectiveness,
purge gas (O
2
) is drawn through the membrane dryer with a pump. The membrane
dryer is maintenance-free.
Figure17Membrane dryer
¡ To determine TX, AOX, EOX via concentrated sulfuric acid:
Sulfuric acid is dried in the Cl module
. The measuring gas is routed to the sulfuric
acid container via a transfer line.
¡ To determine TOC, NPOC, TIC via condensation with Peltier cooling in the
TOC module
.
4.2 Sampling modules
4.2.1 Auto-injector
There are two types of auto-injector. The classic auto-injector is suitable for vertical and
horizontal operation mode, while the Autoinjector AI-EA
is only used in vertical opera-
tion mode.
The auto-injectors are suitable for the following applications:
¡ In vertical operation mode for non-viscous liquids and colorless EOX extracts
¡ In horizontal operation mode only for volatile liquids
The auto-injectors are unsuitable for the following sample types:
¡ Viscous liquids and their solutions
¡ Solids suspended in solution
¡ Colored EOX extracts
¡ Water analyses (TC/NPOC determination)