For climate tests or drying, air-conditioned or heated ambient air is supplied into the test space via the airconditioning unit (incl. refrigeration unit with air-cooled condenser), which is located at the rear. A psychrometric measuring system (dry and wet bulb) with forced wetted wet bulb sensor is installed for measurement and control of humidity.

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Temperature, pressure and humidity are the testing parameters. A parameter is changed for every test. The other two parameters remain unchanged. First of all, every test is performed in a pure synthetic air atmosphere and then in an atmosphere containing a defined quantity of fuel gas. The aim of the test is to discover the effect that a changed parameter has on the signal emitted by the test specimen. Signals and parameters are logged (timedependent), graphically output and stored on data carriers. In addition, any special operating conditions are displayed and logged e.g. exceeding of a threshold value.

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For climate tests or drying, air-conditioned or heated ambient air is supplied into the test space via the airconditioning unit (incl. refrigeration unit with air-cooled condenser), which is located at the rear. A psychrometric measuring system (dry and wet bulb) with forced wetted wet bulb sensor is installed for measurement and control of humidity.

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Thereby, test specimens are exposed to salt spray or condensed water. The system comprises of three major assemblies: test chamber, brine solution storage tank and switch cabinet. A brine solution is sprayed into the test space through nozzles. Depending upon requirements, one, two or more nozzles can be provided. The throughput of one nozzle is approximately 12 litres per day. The brine solution storage tank can hold 600 or 1000 litres. Thus, long term tests lasting for several days are feasible.

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