Fusion Master ONH
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.
A graphite crucible will be pressed between two electrodes and heated up, in the furnace by using max. 1000 A power.
The temperature of the furnace is PC controlled and might reach up to a maximum of 3000 °C.
Programmed temperature profiles for fractional analysis can be pre-set in the operation software. The sealed up sample drop ensures a minimal carrier gas consumption.
The infrared system is designed for a precise operation with low maintenance. The constantly active infrared emitter is providing a low-noise signal. It is possible to extend the analyser with up to 2 independent detector units for a wide analytical range. The design of the cuvette allows easy cleaning. A temperature controlled environment ensures a long-time stability of the analyser´s performance.
Thermo Conductivity Detector
The TC detector provides high sensitivity for the detection of nitrogen and hydrogen with a low background noise. The semi-conductor thermistor produces a rapid signal to guarantee a low detection limit. The design of the TC detector itself is maintenance free.
The NCS operation software is designed for the easy operation of our elemental analysers. It incorporates a desktop for the sample analysis with data transmission as well as the set-up of different methods and user profiles.
The password protected service area shows all important operation parameters of the instrument. A remote access for one of our service engineers is also available.