Wobbe-Index · Stoichiometric Air Demand Off-Gases · Calorific Value · Zirkonia Probes for Flue Gases · Oxygen Analyser · Trace Oxygen Analyser · Zirkonia Probes for Controlling Simultaneously Oxygen and Combustible Gases · Thermal Conductivity Analyser

Below AMS Analysen-, Mess- und Systemtechnik GmbH provides a survey about the AMS product line and services.
Our product line comprises Zirkonia probes for the Oxygen measurement and for the simultaneous control of Oxygen and combustible gases in flue gases, analysers for the Oxygen and trace Oxagen measurement in Technical Gases, Noble Gases, Inert Gases, Protective Gases as well as in complex gas mixtures and in gases with impurities from combustibles.
Additional to Zirkonia probes for the Oxygen measurement in industrial ducts AMS also delivers the analytical measuring technology to determine the Wobbe-Index via the analysing system RHADOX. With this system the colorific value of off-gases may be determined. Auxiliary instrument the like as a catalytic air cleaner to generate Hydrocarbon-free air and a calibrator to generate calibration gases complete our line of products.
All AMS instruments, the Oxygen analysers, the analysers for trace oxygen, the heat conductivity analyser, the Wobbe-Index measuring system RHADOX, and the Zirkonia probes for the Oxygen measurement and the simultaneous control of Oxygen and combustible gases in flue gases are customised in our application shop.

In close collaboration with our customers AMS bult analysing systems, the like as the analysers for trace oxygen, the heat conductivity analyser, the Wobbe-Index measuring system RHADOX, and the Zirkonia probes for the Oxygen measurement and the simultaneous control of Oxygen and combustible gases in flue gases in flue gases to meet the local site demands.
The catalytic air cleaner are moderately priced sources for Hydrocarbon- and Carbonmonoxide-free gases. The RHADOX analysing system is measuring the Air Demand and the Wobbe Index in off-gases e.g. in coke ovens, reliable and continuously, to adjust the combustion process to changing gas qualities and operating conditions. The lowest measuring range for the trace Oxygen measurement is 0 ... 1 ppm. Regarding Zirkonia probes for the Oxygen measurement in industrial ducts the standard measuring range is 0 ... 25 vol-% Oxygen. For process applications the measuring range 1 ppm ... 100 vol-% Oxygen is feasible.
The Oxygen analysers are built into a process by-pass, the Zirkonia probes for the Oxygen measurement in flue gases in industrial ducts are installed in-situ, a sample conditioning system is not needed.
The AMS website describes the technical and application properties as well as the application areas for the Oxygen analysers, the analysers for trace Oxygen, the heat conductivity analyser, the Wobbe-Index measuring system RHADOX (using air demand measurement to determine the Calorific Value), the Zirkonia probes for the Oxygen measurement and the simultaneous control of Oxygen and combustible gases in flue gases, the catalytic air cleaner and the calibrator.

To measure the Oxygen content in flue gases Zrikonia probes will be used. The Zirkonia probes are delivered with different lengths and operating temperature ranges to match the varying applications. For all Zirkonia probes the same electronic control unit is used.

To measure Oxygen in e.g. technical gases, the AMS series 3100 offers a variety of specific analysers equipped with electrochemical as well as Zirkonia sensors. Theses Oxygen sensors feature measuring ranges from 1 ppm until vol-%.
A rather new development concerns the analysis of multi-component gases using our Fourier-Transformed-Thermlal-Conductivity-Analyser FTTCA. This innovative method enables the process engineer to measure simultaneously up to four components in a given multi-component gas mixture, e.g. gases taken from land fills, natural gas or bio gas.
The rubric Engineering asssists the customer in the properly designie of all analysing systems like the Oxygen analysers, the analysers for trace Oxygen, the heat conductivity analyser, the Wobbe-Index measuring system RHADOX (using air demand measurement to determine the Calorific Value), the Zirkonia probes for the Oxygen measurement and the simultaneous control of Oxygen and combustible gases in flue gases the catalytic air cleaner and the calibrator.
The rubric News keep the user informend about our latest developments of our produckt line comprising the Oxygen analysers, the analysers for trace Oxygen, the heat conductivity analyser, the Wobbe-Index measuring system RHADOX (using air demand measurement to determine the Calorific Value), the Zirkonia probes for the Oxygen measurement and the simultaneous control of Oxygen and combustible gases in flue gases in flue gases, the catalytic air cleaner and the calibrator.
In any case we recommend to contact our application department to clarify the firm application of analysers for the Oxygen and trace Oxygen measurement, the multi-component heat conductivity analyser, the Wobbe-Index measurement ( RHADOX system using air demand measurement to determine the Calorific Value), of the Zirkonia probes for the Oxygen measurement and the simultaneous control of Oxygen and combustible gases in flue gases in flue gases.

The AMS analysers are best suited for the measurement of Oxygen as well as trace Oxygen in a variety of different gases. Technical gases, Natural Gas or Protective Gases may be analysed with Oxygen analysers AMS series 3100. Also ATEX approved Oxygen analysers are available.

Zirkonia probes for the Oxygen measurement at high temperatures can be delivered. The appropriate electronic control unit is certified for 13. BImSchV, 17. BImSchV und TA-Luft as well as aftert ehe Eurpean guidelines 2000/76/EG for waste incinerators.
Also te new heat conductivity analyser FTTCA 1100 is ATEX approved. This analyser features a specific sensor with extreme small mass. Using the MEMS technology for the instruments design, a multi-dimensional concentration field can be derived giving rise to the simultaneous measurement of multiple gas components.
The standrad housing for the RHADOX analysing system to determine the calorific value in off-gases is the field unit though customised versions can be delivered. Both versions are certified for Ex zone 2 T3 suitable also for Hydrogen. RHADOX 1000 determines air demand and Wobbe-Index, RHADOX 3000 includes adittionally the Speicific Gravity measurement thus enabling the dertemination of the Calorific Value.

Survey of our line of products:

Analysers for the measurement of Oxygen in technical gases, Noble Gases, Inert Gases, Protective Gases as well as in complex gas mixtures and in gases with impurities from combustibles
Analysers for the determination of trace Oxygen in technical gases
Analysers for the measurement of Oxygen in gases with combustible impurities
ATEX approved analysers for the Oxygen measurement in EEx-areas
Zirkonia probes for the Oxygen measur3ement in industrial ducts
Zirkonia probes for extreme hot flue gases
ATEX apptoved Zirkonia probes for EEx-areas
Zirkonia probes certified for waste incinerators following the European guidline 2000/76/EG
Heat conductivity analysers for the analysis of Natural Gas
Heat conductivity analysers for the analysis of Bio gases
Heat conductivity analysers for the analysis of gases from land fills
Heat conductivity analysers for the analysis of multi-component gas mixtures
ATEX approved heat conductivity analysers for the analysis
Wobbe-Index measuring system RHADOX extendable for the measurent of the Calorific Value
Wobbe-Index measuring system RHADOX for off-gases
Wobbe-Index measuring system RHADOX with integrated measurement of Specific Gravity
Catalytic air cleaner generating Hydrocarbon-free air
Calibrator generating calibration gases

Application areas of the AMS analysers

Oxygen analysing systems

The Oxygen analysing systems from AMS
are mainly used by manufacturers of industrial gases in air separation plants to measure Oxygen in Nitrogen and Noble Gases and in Carbondioxide and Hydrogen.

The Oxygen analysing systems from AMS
are also used in heat treatment plants in metallurgic industries to measure Oxygen in Nitrogen, in Hydrogen and in Carbonmonoxide.

The Oxygen analysing systems from AMS
Welding companies need protective gases for the welding process. Thus the measurementof Oxygen protective gas while welding high grade alloy steels like Titanium, Aluminium etc is necessary.

The Oxygen analysing systems from AMS
In the chemical industry the measurement of Oxygen in Ethylene, in Hydrogen or in complex gas mixtures is a major task.

The Oxygen analysing systems from AMS
The measurement of Oxygen in Carbondioxide is a important analysis for breweries, for food processing and for the chemical industry.

The Oxygen analysing systems from AMS
The measurement of Oxygen in Ammonia ia a frequent analysing task in the chemical industry and in metallurgy plants as well as in the manufacturing of industrial gases.

Zirkonia probes for the measurment of Oxygen in flue gases
The Oxygen measuring units are used for the determination of the Oxygen concentration in flue gases of incinerators or in pure industrial gases covering the temperature range from 20°C to 1750°C.
Since the Zirconia measuring cell is located in the flue gas flow the measurement takes place directly (in-situ) allowing the sample extraction and conditioning system to be omitted.
Specific applications demand probes aligned to the particular process environment: e.g. to hazardous areas classified as zone 1 or 2 (ATEX approved), to residue free combustion processes using Natural Gas or to flue gas ducts with small diameters.

Zirconia Probes for the Simultaneous Measurement of Oxygen and Combustible Gases
The wide range of applications of ZrO₂-probes for the measurement of Oxygen in flue gases is well known and widely accepted. An additional requirement however is the simultaneous measurement of combustible gases, mainly Carbonmonoxide, but also Hydrogen or unburned Hydrocarbons in order to determine the optimum of combustion or process efficiency.
AMS offers a fast, versatile and cost effective instrument for direct in-line measurement, using a newly developed dual-sensor for measuring simultaneously O₂ and Combustibles (measured as CO-Equivalent COe).
A EEx-approved version for zone 1 is also available (ATEX II 2G EEx d IIB+H2 T3).

Applications
The Oxygen measuring units are used for the determination of the Oxygen concentration in flue gases of incinerators or in pure industrial gases. Simultaneously the concentration of combustible gases, mainly Carbonmonoxide, but also Hydrogen or unburned Hydrocarbons can be measured in order to determine the optimum of combustion or process efficiency.

The Wobbe-Index measuring system RHADOX
The Wobbe-Index measuring system RHADOX determines the Air Demand and Wobbe-Index in Combustion Gases and in off-gases. A specific version of the RHADOX, including an integrated gravity measuring unit, determines additionally the Caloric Value.

Off-gases, left over at refinery or other industrial processes e.g. coke ovens, are more and more in common usage as a source of energy, for environmental reasons and as a cost saving alternative to natural gas fuelling. However the composition of these exhaust gases varies strongly due to their generating process. On the other hand the constant energy supply at the combustion of the off-gases is an economical necessity, minimizing the emissions desirable. Therefore the reliable and continuous measurement of the Air Demand and the Wobbe Index in the gas is needed to adjust the combustion process to changing gas qualities and operating conditions.

Applications for the RHADOX

Making use of off-gases from furnaces, chemical plants and refineries as of sewage digesters and bio-gas plants:
For feed forward combustion control in all natural gas-fired boilers and industrial furnaces in facilities for power generation and chemical and petro-chemical production
Production of blended gases with prescribed quality
Making of industrial gases, also for those with a lower Wobbe Index
The gas flame as a tool: Assuring quality in the glass industry

Multi-Component-Gasanalysis with Fourier-Transformed Thermal Conductivity Analyser FTTCA 1100
Now the new FTTCA (Fourier-Transformed Thermal Conductivity Analysis)-technique makes possible the simultaneaus measurement of all three components in a multi-component gas mixture. On the one hand the FTTCA-method employs a physical effect known but not often used in process analytics and on the other hand FTTCA is feasible through the availibility of todays newly developed miniaturized thermal-conductivity sensors only. The physical effect comes from the different temperature dependence of the thermal conductivity of the different gas components. Hence the recording of a multi-dimensional concentration field, consequently followed by a fast Fourier-transformation, enables the analysis of three or four component gas mixtures.