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Model KM2000 CnHm -Process Gas Analyzer
The modular constructed ADOS KM 2000 CnHm EM equipment incorporates a microcontroller-aided measurement device for measuring solvents. All combustible gaseous CnHm compounds can be measured with the exception of chlorinated and sulphur-sublimed hydrocarbons.
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The thermocouples used for measurements, in conjunction with applying the principle of heat reaction, offer the following advantages:
- High degree of sensitivity
- Good accuracy
- Negligible drift of zero point
- Over-range signals have no effect
Gas measurement system
The sampled gas is drawn in by a pump through a feed pipe (heated if required), to the reaction chamber, via a compensating filter, flow regulator and flow-through meter. The gas is warmed to a constant temperature by means of the heater coil and jacket and finally burned in a solid-matter catalytic converter. The difference in temperature before and after combustion, is used as the measurement signal that is prepared and evaluated by the microcontroller-aided analyser.
The sampled gas is drawn in by a pump through a feed pipe (heated if required), to the reaction chamber, via a compensating filter, flow regulator and flow-through meter. The gas is warmed to a constant temperature by means of the heater coil and jacket and finally burned in a solid-matter catalytic converter. The difference in temperature before and after combustion, is used as the measurement signal that is prepared and evaluated by the microcontroller-aided analyser.
The analyser functions on the principle of heat reaction.The difference in temperatures at the reference measuring point and the measuring point, is a directly-dependent variable of the component part of combustible substances in the gas. The reference measuring point is subjected to the heated non-burned gas mixture, whilst the second probe of the thermocouple pile measures the temperature of the burned gas. A load-independent current of 0-(4)-20 mA is available for connection to electric test meters, plotters and limit value monitors. An RS 232 or RS 485 interface is incorporated for data communication.
The inclusion of a measured value integration provides the facility of forming the average value of measured quantities, continuously or over a prescribed period of time.
The inclusion of a measured value integration provides the facility of forming the average value of measured quantities, continuously or over a prescribed period of time.
The hydrocarbon measuring system ADOS KM 2000 CnHm EM consists of the following 19" rack units:
- Reaction chamber with sensor and electronics
- Gas suction system with or without constant heating for the feed pipes, with sampled gas pump, flow-through meter, flow regulator, flow monitor and filter.
- Microcontroller-aided evaluation unit in 19"-system with application specific standard plug-in Euro-cards
- Housing
Supervision of industrial processes
KM 2000 CnHm EM:
Measuring the emission of hydrocarbons, according to the German clean-air regulations
KM 2000 CnHm:
Measuring solvent saturation
Measuring the concentration of solvents
Concerning room air (ventilation) monitoring
A warning is issued at very low concentrations of poisonous gas thus preventing any danger to health.