We use cookies and analytics to help improve the quality of the services we offer and analyse how our website is used. No personal data is collected. Please read our Cookie Policy here.
 
Sign up to the Alpha Resources Mailing List
Browse Products
By Manufacturer

Oxygen/Hydrogen Analyzer ELEMENTRAC OH-p

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

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

The ELEMENTRAC OH-p can be supplied with up to two infrared cells with different path lengths, accommodating both high and low level oxygen analyses. Hydrogen concentrations are determined in the ELEMENTRAC OH-pby a robust and sensitive thermal conductivity cell.


Request a Quote

OH-P

Application Examples

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

Product Advantages

  • simultaneous oxygen/hydrogen determination with inert gas fusion technique
  • NEW: closed gas management and optimized gas circulation for sensitive OH determination
  • NEW: enlarged Schuetze Reagent tube for precise oxygen measurements
  • NEW: gas flow system with electronic gas flow control and new leakage test
  • NEW: water-cooled sample port system for effective removal of atmospheric gases
  • flexible configurations and measuring ranges for O and H
  • high sensitivity IR and TC cells with low detection limits
  • short analysis time
  • rapid, precise, accurate and reliable element determination
  • powerful 8,5 kW* impulse furnace for temperatures in excess of 3,000 °C
  • economic analysis of grains without capsules
  • NEW: chemicals and tubes are hidden behind a door (removable)
  • NEW: powerful software supporting data and application export, with comment fields
  • single and multipoint calibration (linear regression)
  • NEW: cooling via tap water, heat exchanger or chiller
  • New design allows operation in production control and laboratory
 

Features

Measured elementshydrogen, oxygen
Samplesinorganic
Furnace alignmentvertical
Sample carriergraphite crucibles
Field of applicationceramics, engineering / electronics, steel / metallurgy
Furnaceelectrode impulse furnace (max. 8,5 KW*), temperatures in excess of 3,000 °C
Detection methodsolid state infrared absorption for oxygen, thermal conductivity for hydrogen
Typical analysis time120 - 180 s
Chemicals requiredmagnesium perchlorate, Schuetze reagents, sodium hydroxide
Gas requiredcompressed air, nitrogen 99.995 % pure, all gases with (2 - 4 bar / 30 - 60 psi)
Power requirements3~ 400 V, 50/60 Hz, max. 8,500 W
Dimensions (W x H x D)57 x 77 x 63 cm
Weight~ 161 kg
Required equipmentbalance (resolution 0.0001g), monitor, PC
Optional accessoriescarrier gas purification, external chiller, gas calibration unit

* limited to 6.8 kw in application settings
 

Function PrincipleOH-P Front Profile​​​​​​​

Operation ELEMENTRAC OH-p

Operation of the ELEMENTRAC OH-p 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. 

Depending on the application the sample has to be placed in a nickel basket or capsule. Granulates or pins made of steel can be placed directly on the sample port without any other tools. Some applications also require additional fluxes like tin or nickel, which have to be filled into an empty graphite crucible. This graphite crucible is placed on the lower electrode tip and the analysis can be started. Typical analysis time is about 2,5 minutes. 

All cell outputs and analyser parameters are displayed in real time and are saved in a data base along with the results. Of course the results and application settings can be exported. The ELEMENTRAC OH-p requires minimum maintenance and all filters and chemicals which need to be maintained are easily accessible. During daily work a door hides chemicals and filters. It can be removed easily to observe these during analysis.

Measuring Principle ELEMENTRAC OH-p

The measuring principle of the ELEMENTRAC OH-p allows for a wide measuring range. To analyze the sample, it is weighed and placed on the sample port. Flushing with carrier gas prevents atmospheric gas (oxygen) 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. Hydrogen is released in its elemental form. The carrier gas (nitrogen) and sample gasses pass through a filter before entering the Schuetze reagent which converts the CO to CO2, whereas hydrogen stays in its elemental form. 

The CO2 is measured by the infrared cells and removed chemically.  Afterwards the hydrogen content is determinated in the thermal conductivity cell.

Subject to technical modifications and errors

Latest News

Alpha Resources, LLC, Stevensville, MI USA, has launched their updated Safety Data Sheets (SDS) database that now includes translating capabilities. The SDS translating feature has the ability to offer SDSs in 47 different languages, representing 93 different countries and their specific dialects. The new software has the added bonus of creating GHS compliant labels, which can be printed in the user’s local language when paired with additional hardware. GHS compliant labels are required by most major countries on all containers with hazardous materials.

Alpha has successfully completed its ISO 17025 and 17034 certification assessments. This reaffirms Alpha's ongoing pursuit to provide high quality products that its customers can depend on to deliver consistent, reliable results. Please click here to view the new documents.