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With every system
- Installation & training on-site setup, gas connection and operator onboarding
- Method + calibration a surface-carbon SOP set up on your samples
C-H-S Analyzers, Analysis equipment, Elemental Analyzers
ELTRA SurfaceC-800 Surface Carbon Analyzer – Combustion + IR | Steel, Aluminum & Ceramics
Dedicated surface-carbon analyzer for solid samples — combustion in a resistance furnace up to 1,000 °C with infrared CO₂ detection, from trace level to 1,000 µg/cm² in 60–90 seconds.
- ✔ Surface carbon: trace–1,000 µg/cm² · 60–90 s per analysis
- ✔ Resistance furnace to 1,000 °C · solid-state IR cells (1–2)
- ✔ Large samples up to 32×145 mm · minimal prep · gold IR path option
- ✔ Lead time: configured to order — request current timeline
Price held 7 days after order.
Install + training included
Tailored service plan
Built for metallurgy QC teams
What your QC lab actually checks
Surface carbon, minimal prep
Combustion in a 1,000 °C resistance furnace with a copper-oxide catalyst releases CO₂ that infrared cells quantify in 60–90 seconds — from trace level to 1,000 µg/cm². Large solid parts up to 32×145 mm load straight into a quartz boat with no grinding or digestion, so surface carbon is a fast, routine QC number.
An applications engineer on the line
IR-cell configuration, calibration, blank control and gold-IR-path selection from engineers who run materials characterization in-house. Sub-4h reply, NDA standard.
Surface carbon
Measured element
to 1000 µg/cm²
Carbon range
1000 °C
Furnace
60–90 s
Analysis time
32×145 mm
Max sample
About this product
The ELTRA SurfaceC-800 determines surface carbon on solid samples quickly and precisely. The sample is placed in a quartz boat and pushed into a resistance furnace (adjustable to 1,000 °C); the combustion gas passes a copper-oxide catalyst and the released CO₂ is measured by infrared cells. With minimal preparation and a 60–90 second analysis, it quantifies surface carbon — from lubricant residues to carburization — on steel, aluminum and ceramics up to 32×145 mm.
Why QC and metallurgy labs choose the SurfaceC-800
Surface carbon, not bulk — fast IR determination with almost no sample prep.
Surface carbon in 60–90 s
Combustion plus solid-state infrared absorption quantifies carbon on the sample surface in a minute and a half — fast enough for production control, not just the lab.
Large samples, minimal prep
Measure solid parts up to 32×145 mm directly in a quartz boat. Enter the surface area, load the sample and start — no grinding or digestion required.
Wide dynamic range
One or two customized infrared cells and single- or multipoint calibration give a broad, dynamic measuring range with electronic gas-flow control for stable results.
Built for tricky samples
A special sample sluice lowers the atmospheric blank, and an optional gold IR path handles halogen- or acid-containing samples — robust, low-maintenance operation.
How Additive Plus supports it
A configured, installed analyzer with a surface-carbon method dialed in on your parts.
Step 01
Configure to your samples
We spec the IR cells, calibration standards and the gold IR path option to your material and carbon range before it ships.
Step 02
Install & train
Factory-trained engineers install, connect the oxygen and PC/balance, and train your team on calibration and measurement.
Step 03
Method & QC support
We help build the SOP — calibration with standards or gas dose, blank control and a repeatable surface-carbon baseline.
What the SurfaceC-800 measures
Full technical specifications are in the Specifications tab. Key measurement capability:
| Parameter | SurfaceC-800 |
|---|---|
| Measured element | Surface carbon |
| Principle | Combustion (resistance furnace to 1,000 °C) + solid-state infrared absorption |
| Detection | 1–2 infrared cells · aluminum IR path (optional gold) |
| Sample size | Up to 32×145 mm · quartz boat, minimal preparation |
| Analysis time | ~60–90 seconds |
| Requirements | Oxygen 99.5% · PC, monitor, 0.0001 g balance |
Typical applications
Where surface carbon on a solid part has to be controlled.
Surface carbon on steel
Lubricant & residue control
Carburization / decarb
Heat-treatment QC
Aluminum surfaces
Cleanliness verification
Ceramics
Residual carbon after debind
Coating & press residues
Organic residue detection
AM parts & feedstock
Surface carbon pickup checks
Complete your materials-QC lab
Pair surface-carbon analysis with sample prep, hardness and optical inspection.
Hardness testingQATM QNESS 10/60 MView system →
Optical inspectionQATM QEYE 800View system →
Sample prepQATM QPOL 250 BOTView system →
Optical inspectionQATM QEYE 800View system →
Sample prepQATM QPOL 250 BOTView system →
Tell us the material and carbon range you need to control — our applications engineer will confirm the right SurfaceC-800 configuration (IR cells, gold path) and pair it with sample prep and hardness testing. Sub-4h reply, NDA standard.
Why source the SurfaceC-800 through Additive Plus
- Authorized channel for ELTRA / Verder Scientific lab equipment — sales, installation, training and service in one place.
- Full materials-QC line — surface carbon, hardness, sample prep and optical inspection from one partner.
- Method development on your samples — calibration, blank control and a repeatable surface-carbon SOP.
- <24h response from engineers who run materials characterization in-house. NDA standard.
| Brand | ELTRA |
| Model | SurfaceC‑800 |
| Measured elements | carbon |
| Furnace alignment | horizontal |
| Sample carrier | quartz boats |
| Field of application | ceramics, steel / metallurgy |
| Furnace | resistance furnace with quartz tube, adjustable up to 1000 °C |
| Maximum sample size | 32 x 145 mm / 1.26 x 5.71 in |
| Detection method | solid state infrared absorption |
| Number of IR cells | 1 - 2 |
| Material of IR path | aluminum (optional gold) |
| Typical analysis time | 60 - 90 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. 10 A, 2300 W |
| Dimensions (W x H x D) | 550 x 800 x 600 mm / 21.65 x 31.5 x 23.62 in |
| Weight | ~ 65 kg |
| Required equipment | PC, monitor, balance (resolution 0.0001g) |
| Optional accessories | voltage stabilizer 5 KVA |
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Bundle · Ultrasonic atomization, Metal LPBF
AO Metal A100 + ATO Noble + CAMSIZER X2: Jewelry Bundle
On backorder
· Configured to order — request lead timeFrom metallurgy and QC labs running the ELTRA SurfaceC-800
Unedited feedback from materials-QC teams.
★★★★★
Surface carbon on our steel strip in under two minutes, straight from the coil. It runs right in production control.
MF
Markus F. QC Engineer · Steel / metallurgy
★★★★★
Loading large parts directly with no prep saved us a lot of time. Calibration with standards is straightforward.
LS
Lucia S. Lab Supervisor · Automotive
★★★★★
The gold IR path let us run coated samples that used to foul our old analyzer. Low maintenance so far.
AR
Ahmed R. Materials Engineer · Ceramics
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What does the ELTRA SurfaceC-800 measure?
The SurfaceC-800 determines surface carbon on solid samples — from trace level up to 1,000 µg/cm². It is not a bulk analyzer: it quantifies the carbon present on the surface of a part, such as lubricant residue, organic contamination or carburization. This is a key quality-control requirement in the metal-producing and metal-working industries, and it also applies to ceramics and additive-manufactured parts.
How does the measurement work?
You enter the sample surface area, place the part in a quartz boat and push it into the hot zone of a resistance furnace set up to 1,000 °C. The combustion gas passes a copper-oxide catalyst so all carbon converts to CO₂, which is then measured by infrared cells. An external PC controls the process and calculates the result. A determination takes only about 60 to 90 seconds.
What sample sizes and materials can it handle?
The SurfaceC-800 accepts large solid samples up to 32×145 mm with minimal preparation — no grinding or digestion. It is used on steel, aluminum, ceramics and other metals. For samples containing halogens or acids, an optional gold IR path protects the optics, and a special sample sluice reduces the atmospheric blank for cleaner low-level results.
How is it calibrated?
Calibration is easy, with certified standard materials or a gas dose, and supports both single-point and multipoint calibration. One or two infrared cells can be combined to give a wide dynamic range, and electronic gas-flow control keeps conditions stable. Additive Plus sets up the calibration and a repeatable method on your samples during installation.
What does it need to run?
The SurfaceC-800 needs oxygen at 99.5% purity (2–4 bar), an external PC and monitor, and a balance with 0.0001 g resolution. It runs on 230 V (max 10 A, 2,300 W) and uses magnesium perchlorate and sodium hydroxide as reagents. A 5 kVA voltage stabilizer is available as an option for unstable supplies. It is robust and low-maintenance, suitable for both the lab and production control.
Is the SurfaceC-800 suitable for additive manufacturing QC?
It can be. Surface carbon pickup on metal AM parts or on feedstock handling surfaces can affect downstream processing and joining, and the SurfaceC-800 quantifies it quickly with little preparation. Additive Plus can help you decide whether surface carbon is the right measurement for your AM QC question, and pair it with the rest of a materials-characterization workflow.
What is the lead time, and can Additive Plus set it up?
The SurfaceC-800 is configured to order; request a quote for the current lead time. Additive Plus is an authorized ELTRA / Verder Scientific channel and handles installation, oxygen and balance connection, calibration and operator training, then helps build your surface-carbon SOP. You can also send a sample for a paid measurement first. Sub-4h reply, NDA standard.
Place your order, or talk to an engineer first
Order ELTRA SurfaceC-800 Surface Carbon Analyzer – Combustion + IR | Steel, Aluminum & Ceramics direct, or talk to materials engineer