| 摘要 |
An energy supply unit for a measuring device for determining and/or monitoring a physical or chemical, process variable of a medium. Included is at least one voltage limiting unit and/or at least one current limiting unit in the energy supply unit, wherein the voltage limiting unit is embodied in such a manner that arising voltages remain under a value, which leads to an explosion in an explosion-endangered area, and wherein the current limiting unit is embodied in such a manner that arising currents and/or heatings associated therewith remain under a value, which leads to an explosion in an explosion-endangered area.
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