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C-H-S Analyzers, Analysis equipment, Elemental Analyzers

ELTRA ELEMENTRAC CS-i Induction Carbon/Sulfur Analyzer – Metals & Ceramics | 0.6 ppm–6%+

Induction-furnace analyzer for carbon and sulfur in inorganic samples and metals — combustion above 2,000 °C with up to four infrared cells covering 0.6 ppm to more than 6 % at 1,000 mg, in about 40 seconds.

  • ✔ Induction furnace > 2,000 °C · single or simultaneous C/S · metals & inorganics
  • ✔ 0.6 ppm to 6 %+ · up to 4 IR cells · heated dust trap · Pt catalyst
  • ✔ ~40 s analysis · optional 36/130-position autoloader · TIC module
  • ✔ Lead time: configured to order — request current timeline
Prices follow supplier cost and stock availability and are updated regularly. The price you see is today's price — once you order, it's held for 7 days.
Install + training included Tailored service plan
>2,000 °C induction furnace
0.6 ppm–6 %+ C/S range
~40 s per analysis
130 autoloader positions
Built for metallurgy QC teams

What your QC lab actually checks

Induction combustion for metals

An induction furnace above 2,000 °C with controlled power fully melts metals and inorganics, while a platinum-based catalyst and a heated dust trap give accurate carbon and improved sulfur recovery. Up to four infrared cells with variable cuvette lengths cover 0.6 ppm to more than 6 % at 1,000 mg, and intelligent lance oxygen management keeps dusty and low-density samples accurate — a nominal 40-second analysis.

An applications engineer on the line

IR-cell and cuvette configuration, catalyst and dust-trap setup, calibration and blank control from engineers who run metal additive manufacturing in-house (AO Metal). Sub-4h reply, NDA standard.

About this product

The ELTRA ELEMENTRAC CS-i measures carbon and sulfur in predominantly inorganic samples with an induction furnace above 2,000 °C. Controlled induction power, a platinum-based catalyst reactor and a heated dust trap give accurate carbon and improved sulfur recovery; up to four infrared cells cover a measuring range from 0.6 ppm to more than 6 % at a 1,000 mg sample weight. Available as a single-element (C or S) or simultaneous C/S analyzer, with an optional 36- or 130-position autoloader and TIC module.

Why metals and metallurgy labs choose the CS-i

Induction combustion for metals and inorganics, from low ppm to percent level.

Induction furnace for metals

Combustion above 2,000 °C with controlled induction power fully melts metals and inorganics — including precise analysis of low-melting metals.

0.6 ppm to 6 %+ range

The latest detector technology and up to four infrared cells with variable cuvette lengths reliably cover 0.6 ppm to more than 6 % at 1,000 mg — with a two-cell configuration for both low and high levels.

Heated dust trap + Pt catalyst

A heated dust trap prevents water condensation and improves sulfur recovery; the platinum-based catalyst fully oxidizes combustion products for accurate carbon, even at very high levels.

~40 s analysis + autoloader

Nominal 40-second analysis, intelligent lance oxygen management for dusty and low-density samples, and an optional 36- or 130-position autoloader for high throughput.

How Additive Plus supports it

A configured, installed analyzer with a carbon/sulfur method dialed in on your metals.

Step 01
Configure to your samples

We spec the IR-cell and cuvette configuration, catalyst, dust trap and autoloader to your alloy and concentration range before it ships.

Step 02
Install & train

Factory-trained engineers install the analyzer, connect oxygen, air and the PC/balance, and train your team on the ELEMENTS software.

Step 03
Method & QC support

We help build the SOP — calibration with standards, leakage test, blank control and a repeatable carbon/sulfur baseline.

What the CS-i measures

Full technical specifications are in the Specifications tab. Key measurement capability:

Parameter ELEMENTRAC CS-i
Measured elements Carbon, sulfur (inorganic samples / metals)
Measuring range 0.6 ppm to > 6 % (at 1,000 mg)
Principle Induction furnace above 2,000 °C + solid-state infrared absorption
Detection 1–4 infrared cells · aluminum IR path (optional gold)
Analysis time ~40 seconds (nominal)
Requirements Oxygen 99.5 % · compressed air · PC, monitor, 0.0001 g balance
ELTRA ELEMENTRAC CS-i carbon sulfur analyzer with optional TIC module
The optional TIC module measures total inorganic carbon by acidification in soil and construction materials.
ELTRA ELEMENTS software for the ELEMENTRAC CS-i analyzer
The Windows-based ELEMENTS software — analysis, calibration, diagnosis and export from one window.

Typical sample materials

Carbon and sulfur in metals, minerals and inorganic matrices.

Steel & cast iron
Metallurgy QC
Copper & alloys
Low-melting metals
Ferroalloys & refractory metals
Incoming inspection
Ceramics & glass
Carbon / sulfur content
Cement & construction
Special cement configuration
Ores & minerals
Geology / mining

Not sure the CS-i is the right analyzer?

Compare with the resistance-furnace ELEMENTRAC combustion analyzers.

Tell us your alloy or matrix and the carbon and sulfur range you need to control — our applications engineer will confirm whether the induction CS-i or a resistance-furnace analyzer fits, and the IR-cell configuration. Sub-4h reply, NDA standard.

Why source the CS-i through Additive Plus

  • Authorized channel for ELTRA / Verder Scientific lab equipment — sales, installation, training and service in one place.
  • Configured to your samples — IR cells, catalyst, dust trap and autoloader specified before shipping.
  • Method development on your metals — calibration, leakage test, blank control and a repeatable carbon/sulfur SOP.
  • <24h response from engineers who run metal additive manufacturing in-house (AO Metal). NDA standard.
Brand ELTRA
Model ELEMENTRAC CS‑i
Measured elements carbon, sulfur
Samples inorganic
Furnace alignment vertical
Sample carrier ceramic crucibles
Field of application construction materials, engineering / electronics, geology / mining, glass / ceramics, steel / metallurgy
Furnace induction furnace, above 2,000 °C
Detection method solid state infrared absorption
Number of IR cells 1 - 4
Material of IR path aluminum (optional gold)
Typical analysis time 40 seconds (nominal)
Chemicals required magnesium perchlorate, platinum-based catalyst, sodium hydroxide
Gas required compressed air (4 bar/ 60 psi) oxygen 99.5 % pure (2 - 4 bar / 30 - 60 psi)
Power requirements 230 V, 50/60 Hz, max. 15 A, 3450 W
Dimensions (W x H x D) 520 x 840 x 750 mm / 20.47 x 33.07 x 29.53 in

Product videos

Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

What does the ELTRA ELEMENTRAC CS-i measure?
The ELEMENTRAC CS-i determines carbon and sulfur in predominantly inorganic samples — metals, alloys, ceramics, ores, cement and similar matrices. It uses an induction furnace above 2,000 °C to fully combust the sample, and up to four infrared cells to measure the released CO₂ and SO₂. It is available as a single-element analyzer for carbon or sulfur, or for simultaneous C/S measurement.
What is the measuring range and how is it configured?
With the latest detector technology, the CS-i reliably covers 0.6 ppm to more than 6 % at a 1,000 mg sample weight. Infrared cells use cuvettes of variable length — longer cuvettes give higher sensitivity for low concentrations such as 10 ppm, while a configuration of two IR cells for one element covers both low and high levels. Optional gold cuvettes, more robust high-sulfur cells and a halogen trap extend the range further.
How does the CS-i improve sulfur and carbon accuracy?
A heated dust trap collects the dust from inductive combustion and prevents water condensation, which significantly improves sulfur recovery and reproducibility. A platinum-based catalyst reactor with an extended reaction path fully oxidizes incomplete combustion products (carbon monoxide) for accurate carbon, even at very high concentrations. Intelligent lance oxygen management keeps dusty and low-density samples accurate.
Can the CS-i measure TOC and TIC?
Carbon can be reported as total carbon (TC) or in fractions — total organic carbon (TOC) or total inorganic carbon (TIC). Combined with ELTRA's TIC module, the CS-i measures TIC (for example lime) by acidification in products such as soil and construction materials. Additive Plus configures the TIC module to your application.
What automation and throughput options are available?
The induction furnace can be equipped with an optional automatic sample loader — 36 positions in the standard module, or 130 positions in the XL model, the largest autoloader available for this type of application. A software-based leakage test and the Windows-based ELEMENTS software (analysis, calibration, diagnosis, export) support reliable routine operation and high sample throughput.
What does the CS-i need to run?
It needs oxygen at 99.5 % purity (2–4 bar) and compressed air (4 bar), an external PC and monitor, and a balance with 0.0001 g resolution. It runs on 230 V, 50/60 Hz (max 15 A, 3,450 W). An optional vacuum system, also available with an H-class dust filter for potentially harmful samples, is offered. The analyzer measures about 520 × 840 × 750 mm.
What is the lead time, and can Additive Plus set it up?
The ELEMENTRAC CS-i is configured to order; request a quote for the current lead time. Additive Plus is an authorized ELTRA / Verder Scientific channel and handles installation, gas and balance connection, calibration and operator training, then helps build your carbon/sulfur SOP. You can also send a sample for a paid measurement first. Sub-4h reply, NDA standard.

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