Gaszählereichanlage im geschlossenen Druckkreislauf

The invention relates to a test system for gas meter calibration in a closed circuit under high pressure. The test system comprises a high-pressure flow circuit and a medium flow generator, for example, a turbine unit or an air blower system. Furthermore, a temperature control system, for example, a thermostabilizing chamber or a cooler, which can be operatively connected to the circuit, and a delivery rate control unit for the medium are provided. In addition, a system of the calibration meters, which can be operatively connected to said closed circuit, a medium injection system that generates overpressure in the pipeline system, and a system of high-pressure bottles with different gases, which can be operatively connected to the closed circuit of the test system, are provided.