Function and design
multi EA 5100
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Function and design
4.1
multi EA 5100 basic module
The multi EA 5100 analysis system is modular and can be adapted to each measuring
tasks by combining it with different detectors and sampling modules. The analysis sys-
tem is used to determine the sulfur, nitrogen, chlorine and carbon content in solid, liq-
uid, paste-like, viscous and gaseous samples. It can additionally analyze the AOX, EOX,
EC/OC or TOC, NPOC and TIC sum parameters.
The core of the analyzer system is the multi EA 5100 basic module, which performs
sample gas digestion and measuring gas drying. (As an exception, the measuring gas is
dried in the detection module for chlorine determination.)
The analysis system is controlled and the measurement data is evaluated via the
multiWin control and analysis software.
A self-check system (SCS) is integrated into the analysis system. The SCS consists of a
combination of hardware components and software functions that automatically ensure
proper function of the entire analysis system. Depending on the system setup, the SCS
checks the important device safety and analysis quality parameters (e.g., gas flow, tem-
peratures, pressures, system integrity, baseline stability, signal drift, cooling time, flame
value, etc.) multiple times per second
4.1.1
Principle of operation
4.1.1.1 Vertical and horizontal operation
The basic module is equipped with a double furnace. This innovative technology enables
operation of the combustion furnace in vertical or horizontal mode. Switching between
the two operation modes is simple, and is performed by the user.
Vertical operation mode
In vertical operation mode, the sample aliquot is injected directly into the multi-purpose
combustion tube via the injection port. The sampling module required is a multi-matrix
autosampler, an auto-injector, a GSS module or an LPG module.
Advantages of vertical operation mode:
¡
For gases, LPG, liquid samples with normal viscosity
¡
Best for N, A and Cl trace and ultratrace analyses
¡
Fast analysis
¡
Small bench space required
Horizontal operation mode
In horizontal operation, solids and liquids are transferred to the multi-purpose combus-
tion furnace on boats with Automatic Boat Drive (ABD). Sample feeding can be auto-
mated with an autosampler in combination with the ABD. Liquids can alternatively be
transferred into the horizontal combustion furnace via the auto-injector.
Gases and LPG are injected directly via the injection port of the sample port of the ABD.
Advantages of horizontal operation mode:
¡
For gases, LPG, solids, liquid samples independent of viscosity
¡
Best for volatile liquids
