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Oxygen Hydrogen Analyzer OH-900

Mã sản phẩm:

The OH-900 determines oxygen and hydrogen in inorganic samplesvia inert gas fusion in an impulse furnace with temperatures in excess of 3,000 °C. 

The OH-900 guarantees precise and fast sample analysis. The analyzer covers a wide range of applications such as metal, ceramics and other inorganic materials. 

The OH-900 can be supplied with up to two infrared cells with different path lengths, accommodating both high and low level oxygen analysis. Hydrogen concentration is determined in the OH-900 by a robust and sensitive thermal conductivity cell.

Application Examples

alloys, cast iron, ceramics, copper, refractory metals, steel, ...

Product Advantages

  • simultaneous hydrogen and oxygen determination with inert gas fusion technique
  • flexible configurations and measuring ranges for O and H
  • ramping and fractional analysis included
  • high sensitivity IR and TC cells with low detection limits
  • short analysis time
  • powerful 8 kW impulse furnace for temperatures in excess of 3,000 °C
  • economic analysis of grains without capsules
  • easy to replace, economic upper electrode insert
  • rapid, precise, accurate and reliable element determination
  • powerful software (multilingual, customized display, export of results)
  • single and multipoint calibration
  • low maintenance
  • robust design allows usage in production control and laboratory
Tìm Kiếm
 
Hỗ trợ trực tuyến
ngocnu13
 

Features

Measured elements hydrogen, oxygen
Samples inorganic
Furnace alignment vertical
Sample carrier graphite crucibles
Field of application ceramics, engineering / electronics, steel / metallurgy
Furnace electrode impulse furnace (max. 8 KW), temperatures in excess of 3000 °C
Detection method solid state infrared absorption for oxygen
thermal conductivity for hydrogen
Typical analysis time 120 - 180 s
Chemicals required magnesium perchlorate, Schuetze reagents, sodium hydroxide
Gas required compressed air (4 - 6 bar / 60 - 90 psi)
helium 99.995 % pure (2 - 4 bar / 30 - 60 psi)
Power requirements 3~ 400 V, 50/60 Hz, max. 8500 W
Dimensions (W x H x D) 55 x 80 x 60 cm
Weight ~ 140 kg
Required equipment balance (resolution 0.0001g), monitor, PC
Optional accessories carrier gas purification, gas calibration unit, voltage stabilizer 5 KVA

Function Principle

Operation OH-900

Operation of the OH-900 is simple and safe. The samples are weighed on the interfaced balance and the weight is transferred to the linked PC. Manual weight entry is also possible. The sample is placed into the loading head and the empty graphite crucible is put on the lower electrode tip. Depending on the application the addition of auxiliary materials which lower the melting point, such as tin or nickel, may be required. The analysis time is 2 to 3 minutes, depending on the application parameters. Cell outputs are displayed in real time. All peak profiles are saved on the data base along with the results. Also all results can be transferred to a “Laboratory Information Management System” (LIMS). The OH-900 requires minimum maintenance. The particle filters and chemicals which need to be maintained are easily accessible.


Measuring Principle OH-900

The measuring principle of the OH-900 allows for a wide measuring range. To analyze the sample, it is weighed and placed in the sample drop mechanism Flushing with carrier gas prevents atmospheric gas from getting into the furnace. The graphite crucible is outgassed in the impulse furnace to reduce possible contaminations (e.g. residual hydrogen). After a stabilization phase the sample is dropped into the crucible and melts. Carbon monoxide is produced by the reaction of carbon in the graphite crucible and oxygen of the sample. Nitrogen and hydrogen are released in its elemental form. The carrier gas (nitrogen) and sample gasses pass through a dust filter before entering a Schuetze reagent catalyst which converts the CO to CO2. The CO2 is measured by the infrared cells to determine the oxygen content. CO2 is removed chemically and the hydrogen content is measured in the thermal conductivity cell.

 
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