Oxygen/Nitrogen/Hydrogen Analyzer ELEMENTRAC ONH-p 2

The new ELEMENTRAC ONH-p 2 is a powerful elemental analyzer used to measure the concentrations of oxygen, nitrogen, and hydrogen in inorganic materials such as steel, iron, copper, or ceramics. High sensitivity non dispersive infrared detectors and thermal conductivity detectors can detect element contents ranging from extremely low ppm to high percentage, providing reliable results. The innovative injection system features pulse degassing and vertical injection design, making it easy to analyze rod-shaped, granular, and powdered samples with analysis weights up to 2g. The ELEMENTRAC ONH-p 2 elemental analyzer meets or exceeds the requirements of all relevant international standards, such as ASTM E 1019 or DIN EN 3976.

A closed gas system reduces the consumption of carrier gas and improves detection sensitivity

☆ It can be well applied to needle like, powder like, and granular materials

Economical argon gas can be used as a carrier gas for selection

☆ Shorten analysis time

☆ Induction power up to 8.5kw

☆ Optional automatic cleaner

The ONH analyzer can reliably analyze samples such as stainless steel, non-ferrous metals, ceramics, slag, and ores

Step 1: Enter the sample information into the Elements software

The sample name is entered into the software, and the weight information will be automatically transferred to the software (see step 2)

Step 2: Weigh and put the sample into the injection port

The ELEMENTRAC ONH-p 2 analyzer can safely and accurately analyze samples ranging from a few milligrams to 2 grams. Can directly analyze rod-shaped or granular samples. For the analysis of powder samples, nickel capsules will be used and do not need to be sealed during use.

Step 3: Analysis

Then place the empty graphite crucible on the lower electrode and click on 'Start' using the Elements software to perform elemental analysis. The software will control all subsequent analysis steps.

Step 4: Output data

From 120 to 180 seconds after the analysis begins, the detected content can be reported or exported through LIMS

The ELEMENTRAC ONH-p 2 elemental analyzer can also be used as a single element analyzer to measure oxygen, nitrogen, or hydrogen, or as a multi-element configuration to measure ON, OH, NH, or ONH. Oxygen is measured in the form of carbon dioxide in two infrared detectors, while nitrogen and hydrogen are measured in elemental form in a thermal conductivity cell. The ELEMENTRAC ONH-p 2 elemental analyzer uses helium as the carrier gas (argon gas is also optional) to measure ON and nitrogen as the carrier gas, and uses a high-sensitivity thermal conductivity detector to measure OH.

Detection pools of different lengths

High sensitivity thermal conductivity detector

The chemical reagents and filters required for the operation of the ELEMENTRAC ONH-p 2 elemental analyzer are placed on the front panel and can be hidden behind a movable door during daily operation. This arrangement greatly reduces the time required for maintenance and increases a good user experience. In addition, innovative details greatly improve the reproducibility of measurements.

Innovative sample inlet&pulse degassing sample chamber

The sample injection port of the all-new ONH-p2 ensures comfortable operation and stable reproducibility. Samples of different shapes, such as solid blocks, particles, or powders in nickel capsules, can be analyzed with a weight of up to 2000 milligrams and quickly removed from the surrounding atmosphere with the help of pulse degassing at the sample port. Then they fall vertically into the preheated graphite crucible for analysis.

☆ Strong prevention of dust accumulation

☆ No longer require sealed nickel capsules

☆ Can directly analyze particle samples weighing up to 2000mg

☆ Easy to maintain and durable

Powerful catalyst

When conducting elemental analysis in a graphite crucible, carbon monoxide (CO) is produced, which is converted into carbon dioxide (CO2) under the action of a catalyst and subsequently detected in an infrared detector. The easy to maintain copper oxide catalyst ensures complete oxidation, so even complex materials such as oxides can obtain reliable oxygen content analysis results.

Closed gas management

The ELEMENTRAC ONH element analyzer series uses a closed gas system under high pressure to ensure that the released sample gas can be 100% sent to the detector, ensuring good sensitivity and reproducibility.

In addition to the ELEMENTRAC ONH-p 2 one-stop solution, there are other optional accessories available to improve efficiency and expand the application range of elemental analyzers.

High-capacity automated sample loading is becoming an increasingly important factor for fast and robust O/N/H analysis in metals. The new autoloader for the ELEMENTRAC ONH-p 2 features a sample carousel with 32 crucible positions, as well as a correspondingly designed crucible magazine. This combination currently represents the largest sample loader on the market for analyzers with inert gas fusion.

Automatic cleaning device

Melting the sample in a graphite crucible at temperatures up to 3000 ° C can cause carbon deposition in the upper electrode and furnace, which will have a negative impact on the repeatability of ONH testing. The new optional automatic cleaning instrument can reliably remove these carbon deposits and achieve accurate elemental analysis even under high-throughput conditions. In addition, the elemental analyzer also has efficient gas calibration function and carrier gas pre cleaning function in furnace cleaning.

The comprehensive element analysis software based on Windows is an essential component of all element generation element analyzers. The central window (analysis and results) is the starting point for all the functions required for daily work. From here, analyzed samples can be grouped and exported, or new samples can be registered and analyzed. Users can call various dependent functions, such as application settings, calibration, diagnosis, or status.

Alloys, aluminum, dust, carbides, cast iron, ceramics, copper, ferroalloys, iron, metals, ores, refractory metals, silicon, steel ..

The ELEMENTRAC ONH-p 2 elemental analyzer has a wide measurement range. When analyzing the sample, weigh it and place it into the injection port. Degassing with carrier gas to prevent atmospheric gases (oxygen and nitrogen) from entering the furnace. The graphite crucible is degassed in the pulse furnace of the analyzer to reduce possible contamination (such as residual hydrogen). After the instrument stabilizes, the sample is put into the crucible and melted. Carbon monoxide is produced by the reaction between carbon in a graphite crucible and oxygen in the sample. Nitrogen and hydrogen are released in elemental form. Carrier gas (helium) and sample gas pass through a filter, and then copper oxide catalyst converts CO to CO₂Carbon dioxide is measured for oxygen content using an infrared detector. Remove carbon dioxide and water using chemical methods, and measure nitrogen content in a thermal conductivity detector. In the case of hydrogen analysis, the carrier gas nitrogen and sample gas are passed through Schulz reagent instead of copper oxide catalyst. As an alternative, economical argon gas can be used to determine the oxygen and nitrogen content during the analysis process.