The Fusion Master ONH is a high-precision analytical system engineered for the simultaneous determination of oxygen (O), nitrogen (N), and hydrogen (H) in metallic and inorganic materials. Built around a powerful PC-controlled electrode furnace, the instrument melts the sample inside a graphite crucible using currents up to 1000 A, reaching temperatures of up to 3000 °C. This ensures complete gas release from even the most challenging materials, including steel, copper, titanium, and refractory metals.
During the fusion process, oxygen reacts with the graphite crucible to form CO, which is converted to CO₂ before detection. Nitrogen and hydrogen are released into a high-purity carrier gas stream and transported together with the oxygen-derived gases through the analytical path. The system first directs the gas flow to a Thermal Conductivity Detector (TCD) for precise nitrogen and hydrogen measurement. The TCD’s semiconductor thermistor provides high sensitivity, fast response time, and low background noise, making it ideal for both ultra-low and elevated concentration levels.
Following TCD analysis, the gas enters the infrared absorption detection unit, where oxygen is quantified with exceptional accuracy. The analyzer can be equipped with up to two independent IR detector cells, enabling a broad analytical range that covers both trace oxygen levels in high-purity materials and higher concentrations in raw metals. The IR detector design includes a temperature-stabilized environment, high-quality German optical components, and an easy-clean cuvette layout, which together provide stable long-term performance and minimize maintenance requirements.
The Fusion Master ONH features a robust metal housing, water-cooled electrodes, and a sealed, pressurized system, resulting in reduced carrier-gas consumption and excellent mechanical durability. It is engineered to operate reliably even near production lines, making it an ideal choice for industrial quality control.
All analytical functions are controlled through the intuitive NCS software platform, which provides user-friendly method setup, multilingual operation, secure data transfer, user profiles, real-time monitoring, and password-protected service menus. Remote technical support is available to ensure maximum uptime and effortless maintenance.
By combining advanced furnace technology, highly sensitive detectors, and intelligent software control, the Fusion Master ONH delivers fast, accurate, and reproducible results. Its performance fully meets international standard methods, ensuring compliance in industries such as steel production, copper processing, aerospace component manufacturing, refractory metal production, and laboratory quality assurance. The system is designed not only for routine analysis but also for specialized applications requiring strict reproducibility and minimal detection limits.
| Details | Specification |
|---|---|
| Measuring Range | Oxygen: 0 ppm – 0.01% (low), 0.01% – 2% (high) |
| Nitrogen: 0 ppm – 0.01% (low), 0.01% – 2% (high) | |
| Hydrogen: 0 ppm – 0.005% (low), 0% – 0.5% (high) | |
| Sensitivity / Precision | O: 0.1 ppm / ±0.3 ppm |
| N: 0.1 ppm / ±0.3 ppm | |
| H: 0.01 ppm / ±0.05 ppm | |
| Furnace | PC-controlled electrode furnace, up to 3000 °C |
| Furnace Power | Max. 10 kVA, approx. 1000 AFurnace Power |
| Detection Method | Infrared absorption (up to 2 detectors for oxygen), Thermal Conductivity Detector for N & H |
| Typical Sample Weight | 1 g |
| Analysis Time | Approx. 90 s |
| Reagents | Mg(ClO₄)₂ anhydrous, NaOH, rare earth copper oxide |
| Gas Requirements | Helium & Nitrogen 5.0 (2 bar), compressed air 6 bar (oil-free) |
| Power Supply | 400/230 VAC ±10%, 50/60 Hz, 32 A, 10 kVA max |
| Dimensions (W × H × D) | 670 × 870 × 800 mm |
| Weight | 165 kg |
| Required Accessories | PC + monitor (included), analytical balance (0.0001 g resolution) |
| Standards – ASTM | E-1019, E-1587, E-1409, E-1569, E-1447, E-1937, E-2575 |
| Standards – ISO | 10720, 15351, 17053, 22963 |
Steel & Metallurgy
- Monitoring oxygen, nitrogen and hydrogen throughout steelmaking
- Quality control from pig iron to finished products
- Determination of dissolved gases affecting mechanical properties
- Inline or near-production-site analysis due to robust construction
Aviation & Aerospace Components
- Ensuring extremely low gas levels in high-strain components
- Precise analysis of titanium and high-performance alloys
- Full traceability and compatibility with QA documentation systems
Copper & Copper Alloy Production
- Measurement of high oxygen levels in raw materials
- Verification of near-zero oxygen content in OFC/OFHC copper
- High throughput for continuous production monitoring
Refractory Metals & Advanced Materials
- Analysis of oxygen, nitrogen and hydrogen in tungsten, molybdenum, niobium, tantalum
- Compliance with specialized ASTM/ISO methods
- R&D and material development requiring ultra-low detection limits
General Laboratory & Research Use
- Elemental gas analysis for quality control and certification
- Integration with LIMS and standardized reporting
- Suitable for calibration labs, academic research, and industrial R&D
| Standards – ASTM | E-1019, E-1587, E-1409, E-1569, E-1447, E-1937, E-2575 |
| Standards – ISO | 10720, 15351, 17053, 22963 |




