ELTRA's ELEMENTRAC CS-d is currently a analyzer on the market used for determining carbon and sulfur in organic and inorganic samples. For this purpose, ELEMENTRAC CS-d is equipped with induction furnace and resistance furnace (ELTRA dual furnace technology), covering comprehensive carbon and sulfur analysis. Up to four highly sensitive infrared (IR) detectors allow for precise measurement of high, low carbon, and sulfur concentrations in a single analysis. The measurement range of each detector can be adjusted according to the user's needs to ensure the measurement conditions of each application. ELEMENTRAC CS-d is equipped with comprehensive and easy-to-use ELEMENTS software.

☆ Combination of induction furnace and resistance furnace: The full flexibility brought by ELTRA dual furnace (EDF) technology.

☆ Quickly and accurately analyze carbon and sulfur in organic and inorganic samples

Up to four independent infrared units have flexible measurement ranges.

The gold-plated infrared channel increases the lifespan of testing units for analyzing samples containing halogens or acidic substances

☆ Simultaneously measure carbon and sulfur using prepared samples

☆ Stable design can be used in production control and laboratory

The operation of ELEMENTRAC CS-d is simple and convenient, requiring only a few steps. The typical sample weight for carbon/sulfur analysis is approximately 50 to 1000 milligrams. It can reliably detect concentrations from 1ppm to 100%. Before the combustion process, it is necessary to extract samples from the initial amount, and the amount of extraction varies depending on the substrate. International standards such as DIN EN ISO 14284 (Sampling of Steel and Iron) provide some directions.

Step 1: Enter the sample information into the Elements software

Enter the sample name into the software, and the sample weight will be automatically imported from the balance into the software. (See Step 2)

Step 2: Weigh and add flux

The typical sample weight for C/S analysis is 50mg to 1000mg. The sample is weighed in a ceramic crucible and then accelerator flux such as tungsten is added. The shape of the sample (such as linear, powder, needle shaped, etc.) does not affect reliable analysis results.

Step 3: Analysis

Then place the ceramic crucible on the base of CS-d and start analyzing it using ELEMENT software. This software controls all subsequent steps, such as combustion and evaluation.

Step 4: Output data

After 45-60 seconds of analysis, the measured carbon and sulfur concentrations can be reported or exported through LIMS.

Step 1: Enter the sample information into the Elements software

Enter the sample name into the software, and the sample weight will be automatically imported from the balance into the software. (See Step 2)

Step 2: Sample weighing

The sample mass of 50mg to 500mg is a typical mass for a resistance furnace carbon sulfur analyzer. The sample is directly placed into the porcelain boat, usually without the need to add any flux.

Step 3: Analysis

Place the sample in front of the furnace and click start measurement in the software. When the sample can be pushed into the furnace, the instrument will light up a green LED signal. During the combustion process, the ELEMENT software will continuously record the measured values.

Step 4: Output data

From 60 to 240 seconds after the analysis begins, the measured carbon and sulfur concentrations can be reported or exported through LIMS.

ELEMENTRAC CS-d can be used as a single element analyzer for carbon or sulfur, or configured to measure both carbon and sulfur simultaneously. It uses up to 4 infrared units for simultaneous determination of carbon and sulfur, and can also measure one element separately. As the length of the detection pool increases, the sensitivity to low concentrations (such as 10ppm) also increases. A shorter detection cell can still measure low-level samples within the ppm range, but the standard deviation of the measured values significantly increases. For low and high concentration measurements, it is recommended to use two infrared units for each element. The detection technology expands the measurement range of carbon and sulfur, and the measurement range of induction and resistance furnaces can range from ppm to up to 100%. In addition, the gold-plated detector installed as a standard provides greater reliability for elemental analysis of halogen containing samples. A special configuration of ELEMENTRAC CS-d is a halogen trap that can reliably capture even very high halogen concentrations. The carbon/sulfur analyzer also has specific configurations specifically designed for cement analysis.

Infrared measurement units have flexible measurement ranges

ELEMENTRAC CS-d can provide standardized intelligent solutions for complex samples, while accurately and reliably measuring carbon and sulfur concentrations.

Intelligent Oxygen Control System

Due to the blast furnace temperature of the induction furnace being greater than 2000 ° C and the high oxygen flow rate of 180L/hour, all types of solid samples were completely decomposed, and the C/S content was determined using an infrared measurement unit. Thorough combustion ensures reliable test results. Considering that powder samples may splash out of the crucible, this can result in lower than actual values. The intelligent oxygen spray gun and combustion management system of CS-d ensure that there is no loss of samples during the complete combustion process. To achieve this effect, oxygen can be injected through a spray gun or combustion chamber to prevent the sample from being blown out and allow for controlled combustion. The gradient function of an induction furnace achieves a mild combustion process by gradually increasing power.

Sample inlet of resistance furnace (reduce blank value)

ELEMENTRAC CS-d's resistance furnace provides accurate and reliable analysis for low-carbon content samples. Due to the optimized geometric dimensions of the sample port, the diameter was reduced, and oxygen flushing was performed at the sample inlet. When the sample was introduced, the atmospheric CO2 blank value was greatly reduced, allowing for reliable results in the low measurement range.

The comprehensive element analysis software based on Windows is an essential component of all element generation element analyzers. The central window (analysis and results) is the starting point for all the functions required for daily work. From here, analyzed samples can be grouped and exported, or new samples can be registered and analyzed. Users can call various dependent functions, such as application settings, calibration, diagnosis, or status.

Alloy, dust, carbides, cast iron, cement, ceramics, coal, coke, copper, glass, gypsum, iron, limestone, metals, minerals, oil, ore, plant materials, refractory metals, rubber, sand, soil, steel, titanium, tobacco, etc ..

Regardless of which heating furnace ELEMENTRAC CS-d is used, carbon and sulfur in the sample will form CO during the combustion process₂And SO₂Gaseous molecules. Four element infrared detectors will detect the large amount of CO released₂And SO₂Generally speaking, two infrared detectors are used to measure a gas to ensure accurate and precise analysis of both low and high concentrations. When the high-frequency furnace of CS-d is used, the carrier gas (oxygen) and combustion products (CO)₂Trace amounts of CO and SO₂）Firstly, remove all solid particles through a metal filter. Then remove excess water through a reagent tube containing magnesium perchlorate. The dried combustion gas is transported to two infrared detectors to measure SO₂Then, the heated catalyst (usually a silicon platinum reagent) oxidizes CO to CO₂, will SO₂Oxidation to SO₃，SO₃Gas will be absorbed by fiber cotton, CO₂The gas will enter two elemental infrared detectors for measurement. The combustion gases will be emitted, and the Elementals software will calculate the carbon and sulfur content.

ELEMENTRAC CS-d high-frequency furnace is suitable for analyzing inorganic samples such as steel, cast iron, and ceramics, while resistance furnace is suitable for analyzing organic samples such as coal, coal coke, and soil. When coal samples are burned at approximately 1350 ° C, CO₂And SO₂It will be released but usually not by CO. The combustion gas of the resistance furnace first passes through a ceramic filter to remove particulate matter, and then passes through a glass tube containing magnesium perchlorate.

The path of the combustion gas after drying is the same as that of a high-frequency furnace. Usually, the catalytic furnace is turned off in resistance furnace mode because there is no CO to be oxidized. When the combustion temperature is relatively low (~600 ° C), there is a risk of incomplete combustion, and the catalytic furnace should be turned on during the analysis process.