In stock
- Installation & training on-site setup, gas connection and operator onboarding
- Method + calibration a C/H/S SOP set up on your samples
ELTRA ELEMENTRAC CHS-r Carbon/Hydrogen/Sulfur Analyzer – Resistance Furnace + IR | 20 ppm–100%
Resistance-furnace analyzer for fast, simultaneous carbon, hydrogen and sulfur in organic matrices — combustion up to 1,550 °C with a heated H₂O infrared cell for hydrogen and solid-gold IR cells over 20 ppm to 100 %.
- ✔ Simultaneous C / H / S · 20 ppm–100 % · high sample weights
- ✔ Resistance furnace to 1,550 °C · heated H₂O IR cell · up to 3 solid-gold IR cells
- ✔ Low-blank sample port · dual-furnace option · TIC module (DIN EN 15936)
- ✔ Lead time: configured to order — request current timeline
What your QC lab actually checks
Carbon, hydrogen and sulfur in one run
Combustion in a resistance furnace to 1,550 °C, with a heated H₂O infrared cell followed by additional gold infrared cells, determines carbon, hydrogen and sulfur simultaneously from 20 ppm to 100 %. An optimized low-blank sample port with reduced diameter and oxygen purge drastically lowers the atmospheric CO₂ blank, so even low-carbon organic samples are measured reliably. An optional second furnace adds fast fractionated analysis.
An applications engineer on the line
IR-cell and hydrogen-cell configuration, low-blank port setup, calibration and blank control from engineers who run materials characterization in-house. Sub-4h reply, NDA on request.
The ELTRA ELEMENTRAC CHS-r is a resistance-furnace analyzer for fast, simultaneous carbon, hydrogen and sulfur in predominantly organic matrices. The sample is burned in oxygen at up to 1,550 °C; the combustion gases first pass a heated H₂O infrared cell for hydrogen, then the CO₂ and SO₂ are measured in additional infrared cells over a wide range from 20 ppm to 100 %. An optimized low-blank sample port and solid-gold IR paths give reliable low-carbon analysis and extended cell life.
Why materials and environmental labs choose the CHS-r
Carbon, hydrogen and sulfur in one run — down to low ppm, up to 100 %.
Simultaneous C/H/S
Fast, simultaneous carbon, hydrogen and sulfur in a resistance furnace up to 1,550 °C, with high sample weights for heterogeneous organic matrices.
Heated H₂O IR cell for hydrogen
A dedicated heated water infrared cell captures the hydrogen as H₂O directly after the furnace, adding hydrogen to the carbon and sulfur determination.
Low-blank port, 20 ppm–100 %
A reduced-diameter sample port with oxygen purge drastically lowers the atmospheric CO₂ blank, enabling reliable carbon analysis in the low measuring range down to 20 ppm.
Gold IR path, dual-furnace + TIC
Solid-gold IR paths extend cell life, two drying columns protect the optics, and options include a second furnace for fractionated analysis and a TIC module.
How Additive Plus supports it
A configured, installed analyzer with a C/H/S method dialed in on your samples.
Configure to your samples
We spec the IR cells, hydrogen cell, sample-port, dual-furnace and TIC options to your matrix and concentration range before it ships.
Install & train
Factory-trained engineers install the analyzer, connect oxygen and the PC/balance, and train your team on the ELEMENTS software.
Method & QC support
We help build the SOP — calibration with standards, blank control, TOC method and a repeatable C/H/S baseline.
What the CHS-r measures
Full technical specifications are in the Specifications tab. Key measurement capability:
| Parameter | ELEMENTRAC CHS-r |
|---|---|
| Measured elements | Carbon, hydrogen, sulfur (organic samples) |
| Measuring range | 20 ppm to 100 % |
| Principle | Resistance furnace to 1,550 °C (1 °C steps) + heated H₂O IR cell + solid-state IR |
| Detection | 1–3 infrared cells · solid-gold IR path |
| Analysis time | ~60–180 seconds |
| Requirements | Oxygen 99.5 % · PC, monitor, 0.0001 g balance |
Typical sample materials
Carbon, hydrogen and sulfur in fuels, biomass, soils and organic matrices.
Not sure the CHS-r is the right analyzer?
Compare with other ELEMENTRAC combustion analyzers.
A-series C/H/SELTRA CHS-580AView analyzer →
Dual furnaceELEMENTRAC CS-dView analyzer →
Why source the CHS-r 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, hydrogen cell, sample-port and TIC options specified before shipping.
- Method development on your samples — calibration, blank control and a repeatable C/H/S / TOC SOP.
- <24h response from engineers who run materials characterization in-house. NDA on request.
| Brand | ELTRA |
| Model | ELEMENTRAC CHS‑r |
| Measured elements | carbon, hydrogen, sulfur |
| Samples | organic |
| Furnace alignment | horizontal (resistance furnace) |
| Sample carrier | ceramic boats |
| Field of application | agriculture, biology, chemistry / plastics, coal / power plant, construction materials, environment / recycling, medicine / pharmaceuticals |
| Furnace | resistance furnace (ceramic tube), adjustable up to 1550 °C (steps of 1 °C) |
| Detection method | solid state infrared absorption |
| Number of IR cells | 1 - 3 |
| Material of IR path | gold |
| Typical analysis time | 60 - 180 s |
| Chemicals required | magnesium perchlorate, sodium hydroxide |
| Gas required | oxygen 99.5 % pure (2 - 4 bar / 30 - 60 psi) |
| Power requirements | 230 V, 50/60 Hz max. heat up current 2000 W |
| Dimensions (W x H x D) | 580 x 520 x 750 mm / 22.83 x 20.47 x 29.53 in |
| Weight | ~ 77 kg |
| Required equipment | PC, monitor, balance (resolution 0.0001g) |
| Optional accessories | TIC module |
Product videos
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- ✔ Ceramic furnace 50–1,000 °C · N₂/O₂/air per stage · manual crucible lids
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Dual-furnace analyzer that combines an induction furnace (above 2,000 °C) and a resistance furnace (to 1,550 °C) in one instrument — carbon and sulfur in both inorganic and organic samples, from ppm to 100 %, with up to four gold infrared cells.
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- ✔ ppm to 100 % · up to 4 independent IR cells · gold IR path
- ✔ Intelligent lance · low-blank port · 36/130 autoloader · TIC · halogen trap
- ✔ Lead time: configured to order — request current timeline
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- ✔ Residual / diffusible hydrogen · hot extraction · precise at low levels
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- ✔ Solid samples up to ø13×60 mm / 10 g · minimal prep
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- ✔ O / H by fusion · single or combined OH · inorganic samples
- ✔ 8.5 kW impulse furnace > 3,000 °C · closed gas system · low detection limits
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· Lead time 8–14 weeks · installation includedWhat our customers say
“Harry and team were professional, effective communicators as we set up the order, then they executed quickly and produced an amazing product for us at a very competitive price. Am looking forward to our next print w Additive Plus!”
“Great 3D printing service and the resin parts look super smooth and clean. Really happy with how everything turned out!”
“Harry was very professional and helped me out with my 3D printing needs and explained what options I have in terms of filaments such as PEEK. Highly recommended.”
“I needed a 3D enclosure printed urgently in a specific time period, they did great!”
Common questions
Don't see yours? Email [email protected] — NDA on request, typical reply within 4 hours.
What does the ELTRA ELEMENTRAC CHS-r measure?
How is hydrogen measured?
How does the low-blank sample port help?
Can the CHS-r run TOC and TIC?
What is the dual-furnace option?
What does the CHS-r need to run?
What is the lead time, and can Additive Plus set it up?
Place your order, or talk to an engineer first
Order ELTRA ELEMENTRAC CHS-r Carbon/Hydrogen/Sulfur Analyzer – Resistance Furnace + IR | 20 ppm–100% direct, or talk to materials engineer