CS-2000 Carbon / Sulfur Analyzer Dual Furnace

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Product Summary

ELTRA's CS-2000 is the only analyzer on the market for the determination of carbon and sulfur in organic as well as inorganic samples. For this purpose, the CS-2000 is equipped with both an induction and a resistance furnace (ELTRA Dual Furnace Technology), covering the full range of carbon and sulfur analysis.


Product Videos

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Eltra CS-800/2000 (4:38)
Watch a brief overview of the equipment and software for the CS-800/2000 Carbon/Sulfur Elemental Analyzer
Eltra Product Overview (7:18)
Learn about the complete Eltra elemental analyzer product line in this video


The CS-2000 is available with up to four independent infrared cells, which allow the precise and simultaneous analysis of high and low carbon and/or sulfur concentrations. The sensitivity of the cells can be customized individually by selecting the length of the IR-paths to ensure the optimum measuring range for each application.

Product Features

  • Full flexibility due to combined induction and resistance furnace: ELTRA Dual Furnace (EDF) Technology
  • Analysis of organic and inorganic samples
  • Due to ELTRA Dual Furnace (EDF) Technology: fractional analysis of carbon and sulfur
  • Up to four independent infrared cells with flexible measuring ranges
  • Due to gold IR path, increased cell live time for analysis of halogen or acid containig samples
  • Automatic induction furnace cleaning
  • Wide range of materials (organic and inorganic) can be analyzed
  • Rapid, precise, accurate and reliable element determination
  • Powerful (2.2 kW) induction furnace for temperatures above 2,000 °C
  • Temperature of resistance furnace adjustable up to 1,550 °C in steps of 1 °C
  • Effective, easily accessible dust trap
  • Single and multipoint calibration
  • Simultaneous calibration of carbon and sulfur
  • Low maintenance
  • Robust design allows usage in production control and laboratory
  • Simultaneous carbon and sulfur determination with minimal sample preparation


  • Alloys
  • Ashes
  • Carbides
  • Cast iron
  • Cement
  • Ceramics
  • Coke
  • Copper
  • Glass
  • Gypsum
  • Iron
  • Limestone
  • Metals
  • Minerals
  • Oil
  • Ores
  • Plant materials
  • Refractory metals
  • Rubber
  • Sand
  • Soils
  • Steel
  • Titanium
  • Tobacco
Measured elements:
carbon, sulfur
inorganic, organic
Furnace alignment:
horizontal (resistance furnace) and vertical (induction furnace)
Sample carrier:
ceramic boats / crucibles
Field of application:
agriculture, chemistry / plastics, coal / power plant, construction materials, engineering / electronics, environment / recycling, geology / mining, glass / ceramics, medicine / pharmaceuticals, steel / metallurgy
induction furnace, above 2,000 °C resistance furnace (ceramic tube), adjustable up to 1,550 °C (steps of 1 °C)
Detection method:
solid state infrared absorption
Number of IR cells:
Material of IR path:
Typical analysis time:
induction furnace 40-50s
resistance furnace 60-120s
Chemicals required:
copper oxide, magnesium perchlorate, sodium hydroxide
Gas required:
compressed air (4 - 6 bar / 60 - 90 psi)
oxygen 99.5 % pure (2 - 4 bar / 30 - 60 psi)
Induction Furnace: 230 V, 50/60 Hz max. 15 A, 3450 W
Resistance Furnace: 230 V, 50/60 Hz, max. heating up current 20 A
Dimensions (WxHxD):
88 x 80 x 60 cm
~ 150 kg
Required equipment:
balance (resolution 0.0001g), monitor, PC
Optional accessories:
Autoloader (for 36 or 130 crucibles), carrier gas purification, halogen trap, HTF-540 pre-heating furnace, voltage stabilizer 5 KVA

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