Surface Carbon Analyzer SurfaceC‑800

Determination of surface carbon is a special requirement for quality control in the metal producing and metal working industry. ELTRA’s SurfaceC-800 analyzer is designed for the precise determination of surface carbon in numerous kinds of solid samples from trace level up to 1000 µg/cm².

The SurfaceC-800 is equipped with a resistance furnace with quartz tube for sample oxidation and can provide temperatures up to 1000 °C. The temperature of the SurfaceC-800 can be set up in steps of 1 °C. As common carrier gas in the SurfaceC-800 oxygen is used.

The detection system of ELTRA’s SurfaceC-800 is very sensitive, reliable and guarantees a long lifetime. It can be customized according to the user’s requirements. It is possible to combine two infrared cells independently to allow for highly precise measurement of surface carbon from trace level up to large amounts.

Application Examples

aluminum, ceramics, metals, carbon on steel

Product Advantages

Rapid, precise, accurate and reliable element determination
Wide range of materials can be analyzed
Resistance furnace temperature can be set up to 1000 °C in steps of 1 °C
Customized infrared cells provide wide, dynamic measuring range
Powerful software (multilingual, customized display, export of results)
Single and multipoint calibration
Electronic gas flow control
Low maintenance
Robust design allows usage in production control and laboratory
Easy calibration with standard materials or gas dose
Surface carbon determination with minimal sample preparation
Large sized samples can be measured (up to 32 x 145 mm)
Optional gold IR path for analysis of halogen or acid containing samples
Special sample sluice for reduction of atmospheric blank

Surface Carbon Analyzer SurfaceC-800 Technical Data

Measured elements	carbon
Samples	inorganic
Furnace alignment	horizontal
Sample carrier	quartz boats
Field of application	ceramics, steel / metallurgy
Furnace	resistance furnace with quartz tube, adjustable up to 1000 °C
Maximum sample size	32 x 145 mm
Detection method	solid state infrared absorption
Number of IR cells	1 - 2
Material of IR path	aluminum (optional gold)
Typical analysis time	60 - 90 s
Chemicals required	magnesium perchlorate, sodium hydroxide
Gas required	oxygen 99.5 % pure (2 - 4 bar / 30 - 60 psi)
Power requirements	230 V, 50/60 Hz, max. 10 A, 2300 W
Dimensions (W x H x D)	55 x 80 x 60 cm
Weight	~ 65 kg
Required equipment	PC, monitor, balance (resolution 0.0001g)
Optional accessories	voltage stabilizer 5 KVA

Functional Principle

Operation of the SurfaceC-800 is simple and convenient. The temperature of the SurfaceC-800 is set up to defined temperature up to 1000 °C. After entering the sample surface size in the PC, the sample is placed in a quartz boat. In the following the analysis can be started and the sample boat is pushed from the open end of the combustion tube into the hot zone of the furnace.

The combustion gas is led through a copper oxide catalyst and the formed CO2 is determined by the infrared cells. All data processing, control of the combustion process and calculating of the result is done by an external PC. The CO2 determination only takes about 60 up to 90 seconds.

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