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With every system
- Installation & training on-site setup, gas connection and operator onboarding
- Method + calibration a hydrogen SOP set up on your alloys
O-N-H Analyzers, Analysis equipment, Elemental Analyzers
ELTRA H-500 Hydrogen Analyzer – Hot Extraction + TCD | Steel, Copper & Alloys
Analyzer for hydrogen in metals by hot extraction — the solid sample drops into a tilting furnace at 900–1,000 °C, and a nitrogen carrier sweeps the diffused hydrogen into a high-capacity thermal conductivity cell in 3–15 minutes.
- ✔ Residual / diffusible hydrogen · hot extraction · precise at low levels
- ✔ Tilting furnace 900–1,000 °C · high-capacity thermal conductivity cell
- ✔ Solid samples up to ø13×60 mm / 10 g · minimal prep
- ✔ 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
Residual hydrogen in metals
Hot extraction below the melting point releases residual and diffusible hydrogen from steel, copper and alloys, and a high-capacity thermal conductivity cell measures it precisely even at low concentrations. This is the hydrogen number that governs embrittlement, cracking and porosity — a routine 3–15 minute determination on solid samples up to 10 g, with minimal preparation.
An applications engineer on the line
Extraction temperature, 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 H-500 determines hydrogen in metals by hot extraction. The solid sample is placed in the cold zone of a horizontal, tilting furnace; when the analysis starts, the furnace rotates so the sample falls into the hot zone (operating 900–1,000 °C), and a nitrogen carrier sweeps the diffused hydrogen into a high-capacity thermal conductivity cell. It handles samples up to ø13×60 mm (up to 10 g), resolves low hydrogen concentrations precisely, and runs an analysis in about 3–15 minutes.
Why metallurgy and QC labs choose the H-500
Residual and diffusible hydrogen in metals — precise, low-maintenance, production-ready.
Hydrogen by hot extraction
The heat-extraction technique determines residual and diffusible hydrogen below the melting point — the number that governs embrittlement and cracking in steel, copper and alloys.
High-capacity TCD
A sensitive, high-capacity thermal conductivity cell gives precise measurements even at low hydrogen concentrations, where embrittlement risk is decided.
Large solid samples
Analyze solid parts up to ø13×60 mm and up to 10 g directly — representative pieces, minimal preparation, no dissolving or fusing.
Low maintenance, easy calibration
Easy calibration with standard materials or a gas dose, multilingual software and easily accessible filters and chemicals — robust for lab and production control.
How Additive Plus supports it
A configured, installed analyzer with a hydrogen method dialed in on your alloys.
Step 01
Configure to your samples
We set the furnace temperature, extraction time and calibration standards to your alloy and hydrogen range before it ships.
Step 02
Install & train
Factory-trained engineers install the analyzer, connect the nitrogen and PC/balance, and train your team on extraction and analysis.
Step 03
Method & QC support
We help build the SOP — calibration with standards or gas dose, blank control and a repeatable hydrogen baseline.
What the H-500 measures
Full technical specifications are in the Specifications tab. Key measurement capability:
| Parameter | H-500 |
|---|---|
| Measured element | Hydrogen (residual / diffusible, hot extraction) |
| Principle | Hot extraction in a tilting resistance furnace (900–1,000 °C) + thermal conductivity detection |
| Carrier gas | Nitrogen 99.995 % (2–4 bar) |
| Sample size | Solid samples up to ø13×60 mm · up to 10 g |
| Analysis time | ~3–15 minutes |
| Requirements | PC, monitor, 0.0001 g balance · 230 V, max 450 W |
Typical sample materials
Where residual hydrogen in metals has to be controlled.
Steel
Embrittlement & cracking control
Copper
Hydrogen porosity
Alloys
Incoming and process QC
Metal AM parts
Residual hydrogen checks
Engineering / electronics
Component QC
Glass & ceramics
Hydrogen content
Not sure the H-500 is the right analyzer?
Compare with ELTRA fusion analyzers for total O/N/H in our catalog.
O + H by fusionELEMENTRAC OH-p 2View analyzer →
O + N + HELEMENTRAC ONH-p 2View analyzer →
O + N by fusionELEMENTRAC ON-p 2View analyzer →
O + N + HELEMENTRAC ONH-p 2View analyzer →
O + N by fusionELEMENTRAC ON-p 2View analyzer →
Tell us your alloy and whether you need residual/diffusible hydrogen (hot extraction) or total hydrogen (fusion) — our applications engineer will confirm whether the H-500 or an ELEMENTRAC fusion analyzer fits, and the calibration approach. Sub-4h reply, NDA standard.
Why source the H-500 through Additive Plus
- Authorized channel for ELTRA / Verder Scientific lab equipment — sales, installation, training and service in one place.
- Configured to your samples — furnace temperature, extraction time and calibration specified before shipping.
- Method development on your alloys — calibration, blank control and a repeatable hydrogen SOP; relevant to metal AM QC.
- <24h response from engineers who run metal additive manufacturing in-house (AO Metal). NDA standard.
| Brand | ELTRA |
| Model | H-500 |
| Measured elements | hydrogen |
| Furnace alignment | horizontal / tilting function |
| Sample carrier | - |
| Field of application | engineering / electronics, glass / ceramics, steel / metallurgy |
| Furnace | resistance furnace with quartz tube, adjustable up to 1000 °C (operating temperature 900 - 1000 °C) |
| Detection method | thermal conductivity |
| Maximum sample size | ø 13 x 60 mm |
| Typical analysis time | 3 - 15 min |
| Chemicals required | Schuetze reagents, magnesium perchlorate, sodium hydroxide |
| Gas required | nitrogen 99.995 % pure (2 - 4 bar / 30 - 60 psi) |
| Power requirements | 230 V, 50/60 Hz, 2 A, max. 450 W |
| Dimensions (W x H x D) | 750 x 520 x 600 mm / 29.53 x 20.47 x 23.62 in |
| Weight | ~ 40 kg |
| Required equipment | PC, monitor, balance (resolution 0.0001g) |
| Optional accessories | voltage stabilizer 5 KVA |
Product videos
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· Lead time: configured to order — request current timelineFrom metallurgy and QC labs running the ELTRA H-500
Unedited feedback from materials-QC teams.
★★★★★
Diffusible hydrogen on our steel forgings in minutes, straight on solid pieces. It caught a batch before it went to heat treatment.
MF
Markus F. QC Engineer · Steel / metallurgy
★★★★★
Hydrogen porosity was a recurring copper problem. Low-concentration precision on the TCD is exactly what we needed.
LS
Lucia S. Materials Engineer · Copper / foundry
★★★★★
We check residual hydrogen on metal AM parts now. Easy calibration with standards and very little maintenance.
AR
Ahmed R. Process Engineer · Additive manufacturing
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What does the ELTRA H-500 measure?
The H-500 determines hydrogen in metals — mainly residual and diffusible hydrogen in alloys, copper and steel. It uses a heat-extraction (hot extraction) technique below the melting point, which targets the mobile hydrogen responsible for embrittlement, cracking and porosity. It measures low concentrations precisely and is used in metallurgy, engineering/electronics and glass/ceramics QC.
How does the measurement work?
You weigh the sample (the balance can transfer the weight automatically or it can be entered manually) and place it in the cold zone of the horizontal, tilting furnace. When the analysis starts, the furnace rotates upward so the sample falls into the hot zone at 900–1,000 °C. A nitrogen carrier gas sweeps the diffused hydrogen into a sensitive thermal conductivity cell. Evaluation and results are automatic and can be sent to a LIMS. A determination takes about 3–15 minutes.
How is hot extraction different from fusion analysis?
The H-500 uses hot extraction below the melting point, so it measures residual and diffusible hydrogen — the hydrogen that can move through the metal and cause embrittlement. Fusion analyzers such as the ELEMENTRAC OH-p 2 or ONH-p 2 melt the sample to release total oxygen, nitrogen and hydrogen. If you need diffusible hydrogen, the H-500 is the right instrument; if you need total O/N/H, a fusion analyzer is the better fit, and Additive Plus can help you choose.
What sample sizes can the H-500 handle?
The H-500 accepts solid samples up to ø13×60 mm and up to about 10 g, so you can analyze representative pieces directly without dissolving or fusing them. Larger, representative samples are helpful for hydrogen because the element can be unevenly distributed. Sample preparation is minimal, which keeps the method fast and suitable for production control.
How is the H-500 calibrated and maintained?
Calibration is easy, using certified standard materials or a gas dose. The multilingual software displays detector signals and instrument parameters during analysis and evaluates results automatically. Maintenance is minimal: the particle filters and the chemicals (Schuetze reagents, magnesium perchlorate, sodium hydroxide) that need attention are easily accessible. Additive Plus sets up the calibration and method during installation.
Is the H-500 useful for metal additive manufacturing QC?
It can be. Residual hydrogen in metal AM parts and feedstock can contribute to porosity and embrittlement, and the H-500 quantifies diffusible hydrogen quickly on solid samples. Additive Plus runs metal additive manufacturing in-house (AO Metal), so we can help you decide whether hot-extraction hydrogen is the right measurement for your AM QC question and set up a repeatable method.
What is the lead time, and can Additive Plus set it up?
The H-500 is configured to order; request a quote for the current lead time. Additive Plus is an authorized ELTRA / Verder Scientific channel and handles installation, nitrogen and balance connection, calibration and operator training, then helps build your hydrogen 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 H-500 Hydrogen Analyzer – Hot Extraction + TCD | Steel, Copper & Alloys direct, or talk to materials engineer