FUSION MASTER ONH

Impulse oven:

Power controlled by PC
Low gas flow system
Water cooled electrodes

PC-controlled analysis:

Lossless Data Transfer
Multilingual software

Analyzer:

Rugged metal construction
Setting from 1 to 6 measuring ranges
Friendly interface

Precision thermally stabilized thermal conductivity cell:

High sensitivity for N and H detection
Low noise

Infrared detector:

Up to 2 independent IR detectors for low and high oxygen detection

Fusion Master ONH Analyzer Specifications

Measuring range	low range High Range*	Oxygen 0 ppm – 0.01 % 0.01% - 2%	Nitrogen 0 ppm – 0.01 % 0.01% - 2%	Hydrogen 0 ppm – 0.005 % 0% - 0.5%
	* displayable upper range up to 100% when varying sample weight
Sensitivity/ Error		Oxygen 0.1 ppm/±0.3 ppm	Nitrogen 0.1 ppm/±0.3 ppm	Hydrogen 0.01 ppm/±0.05 ppm
Pulse oven	PC controlled electrode Max. power 10 kVA
Typical Sample Weight / Analysis Time	1 g / 90 sec
Connected gas	Helium / nitrogen 5.0, 2 atm, compressed air 6 atm (min, no oil)
Connection	380/230 V (± 10%), 50/60 Hz, 32 A, 10 kVA max.
Dimensions (WxDxH)	670 mm x 870 mm x 800 mm, weight 165 kg

Methodology

The sample loaded into a graphite crucible is burned in a pulse furnace. Nitrogen and hydrogen are released from the sample into the carrier gas, oxygen reacts with carbon in the graphite crucible, oxidizing it to CO. Further CO is oxidized to CO ₂ .

Next, the gas is fed into the thermal conductivity cell to determine nitrogen and hydrogen, then to the infrared cell to determine oxygen.

The data received from the detectors are transferred to a PC, and the concentrations of oxygen, nitrogen and hydrogen are calculated.

impulse furnace

A graphite crucible is fixed between two electrodes and heated in a furnace to the required temperature. Furnace capacity up to 1000 A. Standard single and double crucibles are used.

The temperature inside the oven is controlled by a computer and can reach max. 3000°C.

Temperature profile programming for fractional analysis can be preconfigured using the software. Electrode cleaning system, carrier gas cleaning oven included.

Infrared detector - O analysis

The infrared system is designed for precision work with low material consumption. A permanently active infrared emitter provides a low noise signal.

It is possible to equip the analyzer with 2 independent detectors to expand the analytical range.

The cuvette design ensures easy cleaning.

Controlled media temperature ensures long-term performance stability of the analyzer.

Thermal conductivity detector (thermoconductometric cell) - N and H analysis

The detector provides high sensitivity for nitrogen and hydrogen detection with low noise level.
The semiconductor thermistor produces a fast signal to guarantee low detection limits.
The design of the sensor ensures its operation without maintenance.

Analyzer Systems Control Interface

The system for monitoring the gas flow rate and its stability in automatic mode is a standard feature of the Fusion Master ONH analyzer

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