The sample, filled in a graphite crucible, will be fused in the electrode furnace. Nitrogen and hydrogen gases are being released from the sample into the carrier gas and the oxygen is reacting with the carbon of the graphite crucible to CO.The CO is oxidised to CO2 afterwards.
The analytical gas will then be led to the thermal conductivity cell for the determination of nitrogen and hydrogen and afterwards to the infrared cell for the determination of oxygen.
From the received data of the detectors the PC is calculating the concentrations of oxygen, nitrogen and hydrogen.
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Furnace
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PC controlled electrode furnace.
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Power: 10 kVA Maximum.
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Power supply
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230 VAC (+/- 10 % ), 50/60 Hz,16 A , 3.0 kVA max
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Detection method
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Solid state infrared absorption with up to 2 independent detector units for oxygen and a thermal conductivity detector for nitrogen and hydrogen.
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Typical sample weight / Analysis time
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1g / 90 s
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Measuring Range
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Oxygen : Low range-0 ppm - 0.01 % and High range - 0.01 % - 2 %
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Nitrogen : Low range-0 ppm - 0.01 % and High range-0.01 % - 2 %
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*Using sample weight of 1000 mg, with reduced sample weight up to 100 %
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Hydrogen : Low range- 0 ppm - 0.005 % and High range-0 % - 0.5 %
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Sensitivity / Precision
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Oxygen : 0.1ppm/± 0.3ppm
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Nitrogen : 0.1ppm/± 0.3 ppm
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Hydrogen : 0.01 ppm /± 0.05 ppm
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Reagents
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Anhydrous magnesium perchlorate, sodium hydroxide, rare earth copper oxide
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Gas connection
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Helium and Nitrogen 5.0, 2 bar, compressed air 6 bar (min, oil free)
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Power supply
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400/230 VAC (+/-10 %), 50/60 Hz, 32 A, 10 kVA max.
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Dimensions
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W, H, D: 670 mm, 870 mm, 800 mm, weight: 165 kg
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For operation needed
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PC and monitor (included in the scope of supply), balance (resolution 0.0001g)
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The sample, filled in a graphite crucible, will be fused in the electrode furnace. Nitrogen and hydrogen gases are being released from the sample into the carrier gas and the oxygen is reacting with the carbon of the graphite crucible to CO.The CO is oxidised to CO2 afterwards.
The analytical gas will then be led to the thermal conductivity cell for the determination of nitrogen and hydrogen and afterwards to the infrared cell for the determination of oxygen.
From the received data of the detectors the PC is calculating the concentrations of oxygen, nitrogen and hydrogen.
