In order to safely, accurately, and reliably analyze carbon (C), sulfur (S), and hydrogen (H) in major organic matrices such as soil, waste, wood, oil, coal, and coke, ELTRA provides the ELEMENTRAC CHS-r elemental analyzer with an infrared detector.

CHS-r has up to 3 infrared units and can measure carbon, sulfur, and hydrogen over a very wide concentration range. It adopts a horizontal resistance furnace with ceramic tubes, with a working temperature range of 600 ℃ to 1550 ℃.

The CHS-r combustion analyzer meets or exceeds the elemental analysis requirements of all common ASTM, DIN, EN, or ISO standards.

☆ Quickly and simultaneously measure carbon, sulfur, and hydrogen

☆ Can achieve high sample weight

☆ Optimize (low blank) sample injection port

☆ Gold plated IR detection unit, extending service life

☆ Wide measurement range, from 20ppm to 100%

The ELEMENTRAC CHS-r elemental analyzer analyzes the combustion of samples in an oxygen stream and subsequently measures the combustion gas CO in a selective infrared measurement cell₂、SO₂And H₂Measure O to determine carbon, sulfur, and hydrogen elements.

High combustion temperature and electronic monitoring of oxygen flow enable complete oxidation of the sample, even for challenging materials like cement, which helps to avoid measurement results being too low. Regardless of the configuration chosen (carbon sulfur carbon/sulfur carbon/hydrogen/sulfur), the operation is the same for all versions.

第oneStep: 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)

第twoStep: Weigh and add fluxing agent

When analyzing carbon, hydrogen, and sulfur, a typical sample size is between 50 milligrams and 500 milligrams. The sample can be directly placed on a carrier (ceramic boat or chromium nickel iron alloy boat) for analysis without the need for adding combustion aids.

第threeStep: Analyze

The sample is placed in front of the furnace mouth and measurement begins in the software. Subsequently, the furnace door opens and the material can be introduced into the hot furnace. Meanwhile, the Elements software continuously records measurement values during the combustion process. During the measurement process, the furnace door can be selectively closed to improve reproducibility.

第fourStep: Output data

The concentrations of carbon, hydrogen, and sulfur measured 60 to 240 seconds after the analysis begins can be reported or exported through LIMS. Based on the selected configuration, the values of carbon, sulfur, and hydrogen for a single sample can be obtained.

The ELEMENTRAC CHS-r analyzer provides various solutions for reliable and accurate analysis of carbon, hydrogen, and sulfur.

Including two anhydrous magnesium perchlorate purification columns

In order to reliably analyze carbon and sulfur, the combustion gas must undergo water purification before infrared detection. The CHS-r elemental analyzer has two drying columns filled with magnesium perchlorate, which can reliably prevent adsorption effects on large volume samples. When conducting TOC analysis, chemical tubes can also be used as halogen traps to reliably absorb acidic residues and halogens.

Including low blank value sample ports

The ELEMENTRAC CS-r and CHS-r analyzer series ensure safe and accurate elemental analysis, even for samples with low carbon content in resistance furnaces. Due to the optimized geometric shape of the sample port, reduced diameter, and oxygen blowing at the sample inlet, CO in the atmosphere is reduced during the sample introduction process₂The blank value is greatly reduced, thereby achieving reliable carbon analysis within a low measurement range.

Optional backup furnace (ELTRA dual furnace concept)

Any configured CS-r elemental analyzer can be connected to a backup furnace without a detector. This principle is known from ELEMENTRAC CS-d, which enables rapid analysis by applying different temperatures and provides safety for high-throughput samples.

Optional monitor bracket

In order to fully utilize laboratory space, ELEMENTRAC CHS-r analyzer offers various optional spare parts:

• External monitor and keyboard
• Monitor stand, wireless keyboard
• Operate through touch screen

Optional TIC module

Depending on the sample, carbon can also exist in the form of TOC (total organic carbon) or TIC (total inorganic carbon) in the sample. The CHS-r elemental analyzer can be combined with ELTRA's TIC module to determine TIC content through acidification. This combination makes TIC analysis in soil, building materials, and other products reliable and direct, in compliance with DIN EN 15936 standard.

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.

Biomass, building materials, coal/coke, fuels, oil, ore, plant materials, plastics, rubber, soil, coal smoke, tobacco, waste, etc ..

In the CHS-r elemental analyzer, the sample burns in an oxygen environment at a temperature of 1550 ℃. The furnace temperature can be adjusted in units of 1 ℃. Combustion gas (CO)₂、H₂O、SO₂）Coming out of the furnace, first passing through a dust filter, and then entering the heated H₂O Infrared unit. After the water vapor is absorbed by the purification tube, the dried CO₂And SO₂Gas is detected in the infrared unit. Depending on the configuration, up to three infrared units with different sensitivities can be combined.