Call Today 1-800-661-6700

ELEMENTRAC CS-d  Sulfur/Carbon Analyzer

ELEMENTRAC CS-d Sulfur/Carbon Analyzer

Eltra | Material Characterization

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

Up to four highly sensitive infrared (IR) cells allow for precise measurement of both high and low carbon and sulfur concentrations in only one analysis. The measuring range of each cell may be adapted to the user's specific requirements to ensure optimum measurement conditions for each application.

The ELEMENTRAC CS-d is supplied with the comprehensive and user-friendly ELEMENTS software which features statistics, groupings, reports, diagnosis tools and many additional functions.


alloys, ashes, carbides, cast iron, cement, ceramics, coal, coke, copper, glass, gypsum, iron, limestone, metals, minerals, oil, ores, plant materials, refractory metals, rubber, sand, soils, steel, titanium, tobacco, ...


  • General:
  • full flexibility due to combined induction and resistance furnace: ELTRA Dual Furnace (EDF) Technology
  • rapid, precise, accurate and reliable carbon & sulfur analysis in inorganic and organic samples
  • up to four independent infrared cells with flexible measuring ranges
  • gold IR path allows for increased cell live time for analysis of halogen or acid containig samples
  • simultaneous carbon and sulfur determination with minimal sample preparation
  • low maintenance
  • robust design allows usage in production control and laboratory
  • Induction Furnace:
  • adjustable and rampable induction furnace (0-100%) for optimized combustion of every kind of inorganic samples (maximum temperature above 2,000 °C)
  • precise carbon and sulfur analysis in inorganic samples due to intelligent oxygen supply during inductive combustion
  • optional automatic vacuum cleaning system ensures higher measurement precision
  • heated and easily accessible dust trap allows for improved sulfur detection
  • optimized catalyst reactor permits more accurate carbon detection
  • Resistance Furnace:
  • temperature of resistance furnace adjustable from 600 °C up to 1,550 °C in steps of 1 °C
  • low blank sample port assures reliable low carbon measurement in the resistance furnace
  • XXL balcony for storage of samples
  • ELEMENTS software:
  • comprehensive analysis and diagnosis tools (supporting data and application export, comment fields, and many more)
  • Report Designer
  • LIMS
  • single and multipoint calibration


Measured elements carbon, sulfur
Samples 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
Furnaces 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 1 - 4
Material of IR path gold
Typical analysis time induction furnace 40 - 50 s; resistance furnace 60 - 120 s
Chemicals required magnesium perchlorate, platinized silica (alternatively copper oxide), sodium hydroxide
Gas required compressed air (4 - 6 bar / 60 - 90 psi); oxygen 99.5 % pure (2 - 4 bar / 30 - 60 psi)
Power requirements induction furnace 230 V, 50/60 Hz, 16 A fuse
Power requirements resistance furnace 230 V, 50/60 Hz, 20 A fuse
Dimensions (W x H x D) 89 x 84 x 79 cm
Weight ~ 200 kg
Required equipment balance (resolution 0.0001g), monitor, PC
Optional accessories Autoloader for 36 crucibles, carrier gas purification, HTF-540 pre-heating furnace


Operation Carbon / Sulfur Analyzer ELEMENTRAC CS-d

The ELEMENTRAC CS-d utilizes two different furnaces (resistance and induction) which share one detection unit consisting of up to four independent IR cells. Inorganic samples like steel, cast iron, cement are usually processed in the induction furnace of the CS-d. After applying the sample to a ceramic crucible, it is logged in the ELEMENTS software with name and weight. This is followed by adding accelerators like iron and tungsten. The ceramic crucible with sample and accelerator is placed on the pedestal and the measurement is started in the software. All further steps are controlled by the ELEMENTS software; the measured carbon and/or sulfur result is displayed after approx. 50 seconds. One or multiple results can be exported to LIMS or to a report.

Organic samples are usually processed in the resistance furnaces of the CS-d at a defined temperature up to 1,550 C. The samples (such as coal) are weighed in ceramic boats without accelerator. The weight is transferred from the interfaced balance to the PC or can be entered manually. The sample is then placed directly on the balcony in front of the furnace and the measurement can be started. A green LED light indicates when the analyzer is ready for measurement and the ceramic boat with the sample can be introduced into the hot furnace with the help of a stick. The typical analysis time is 60 to 180 seconds, depending on the sample material.


Contact us for pricing