multi EA 4000 Series The Workhorse for Your Solids Analysis

High Performance with Low Maintenance

The multi EA 4000 convinces with its durable design. The selected resistant materials are an advantage when analyzing aggressive and saline samples that cause a high degree of wear with traditional systems. A special optics arrangement and effective gas purification provide a resilient C/S detector that guarantees for extremely low maintenance and excellent long-term stability. Maintenance effort is reduced to a minimum while the operating time of the system is at maximum. Low operating costs and an absolutely reliable analyzing and measuring technique ensure each process step is as effective and efficient as possible.

• Use of robust and virtually wear-free ceramic combustion tubes instead of cost-intensive and quickly worn-out quartz combustion tubes
• Minimal chemical consumption thanks to high-temperature ceramic technology (HTC) – no catalysts needed
• No complex reduction and separation of the oxidation products (chromatographic via adsorption columns) required – due to the use of selective detectors for CO₂, SO₂ and HCl
• No auxiliary gas required for carbon and sulfur analysis
• High sample weights up to 3 g, no laborious sample homogenization required

Thanks to the variable gas flow management and the optimized wide range coulometer, chlorine analyses are possible from the low ppm up to the weight percent range. The coulometric detection system utilizes a unique patented combination electrode. The electrode is based on the latest ceramic technology and does not use internal electrolytes, membranes, or diaphragms. It is immediately ready for use and very low maintenance. The measuring cell is equipped with an automatic stirring function and a self-cleaning silver generator electrode. The integrated cooling of the coulometer cell minimizes electrolyte evaporation while in continuous operation and guarantees stable results. Compared with traditional electrolytes, the special electrolyte used has a significantly increased chloride absorption capacity. This results in long-term stability, which allows for uninterrupted routine analyses even with extremely high chloride loads and without bothersome electrolyte changes.

The challenge modern analytical systems for marco-elemental analysis face lies in reliable automation for an extensive range of samples. The multi EA 4000 offers the fully automatic determination of TOC based on the differential method. The FPG 48 solids sampler offers an enormous capacity for up to 48 sample boats to be transferred into the combustion furnace. Other accessories include modules for direct and automated determination of TIC and TOC. The multi EA 4000 with its high sample throughput is ideal for the automated analysis of carbon, sulfur, and chlorine, as well as the automated determination of total organic and inorganic carbon. By setting different waiting positions and feed speeds, samples of one and the same run each of them can be analyzed under optimal conditions. This means matrices requiring a special temperature program or gradient are processed easily and automatically together with others. An open gas lock replaces problematic sample ports that require opening and closing for sample introduction. It is completely maintenance-free, which avoids contamination and wear. A method library is included to ensure that the analysis of your sample is carried out optimally and reliably. The multi EA 4000 comes equipped with a Self Check System (SCS). The system automatically checks all relevant parameters such as flows and temperatures and guarantees trouble-free, fully automated operation with functions such as the automated gas shut-off and a low standby temperature at the end of an analysis sequence.