Dome pressure regulator for regulating gas pressure and/or gas flow in a gas line, comprising - a housing, wherein the housing comprises at least one gas inlet for connection to an inlet-side portion of the gas line and at least one gas outlet for connection to an outlet-side portion of the gas line, - at least two pressure chambers (5, 6) in the housing, wherein the pressure chambers (5, 6) are separated from one another by a flexible membrane of the dome pressure regulator, wherein an adjustable control pressure can be applied to the first pressure chamber, and wherein the second pressure chamber is in fluidic connection with the gas outlet, - at least one control valve having a movable valve body for opening and closing a valve opening via which the gas inlet is connectable to the gas outlet, wherein the valve body is connected to the membrane so that a movement of the membrane is transmitted to the valve body in order to regulate the gas pressure at the gas outlet in accordance with the adjustable control pressure in the first pressure chamber, - at least one vent valve for venting the first pressure chamber, and - an electronic control unit, wherein the vent valve is designed so as to be controllable via the control unit for venting the first pressure chamber, characterised by a temperature sensor configured to detect the temperature of the gas in the housing or in the gas line and to transmit the detected temperature to the control unit, wherein the control unit is configured to control the vent valve for venting the first pressure chamber to close the valve opening with the valve body of the control valve if the temperature sensor detects that the gas temperature has dropped below a threshold value, and/or a volumetric flow rate sensor configured to detect the volumetric flow rate of the regulated gas in the housing or in the gas line and to transmit the detected volumetric flow rate to the control unit, wherein the control unit is configured to control the vent valve for venting the first pressure chamber to close the valve opening with the valve body of the control valve if the volumetric flow sensor detects that the volumetric flow exceeds a threshold value. - a housing, wherein the housing comprises at least one gas inlet for connection to an inlet-side portion of the gas line and at least one gas outlet for connection to an outlet-side portion of the gas line, - at least two pressure chambers (5, 6) in the housing, wherein the pressure chambers (5, 6) are separated from one another by a flexible membrane of the dome pressure regulator, wherein an adjustable control pressure can be applied to the first pressure chamber, and wherein the second pressure chamber is in fluidic connection with the gas outlet, - at least one control valve having a movable valve body for opening and closing a valve opening via which the gas inlet is connectable to the gas outlet, wherein the valve body is connected to the membrane so that a movement of the membrane is transmitted to the valve body in order to regulate the gas pressure at the gas outlet in accordance with the adjustable control pressure in the first pressure chamber, - at least one vent valve for venting the first pressure chamber, and - an electronic control unit, wherein the vent valve is designed so as to be controllable via the control unit for venting the first pressure chamber, a temperature sensor configured to detect the temperature of the gas in the housing or in the gas line and to transmit the detected temperature to the control unit, wherein the control unit is configured to control the vent valve for venting the first pressure chamber to close the valve opening with the valve body of the control valve if the temperature sensor detects that the gas temperature has dropped below a threshold value, and/or a volumetric flow rate sensor configured to detect the volumetric flow rate of the regulated gas in the housing or in the gas line and to transmit the detected volumetric flow rate to the control unit, wherein the control unit is configured to control the vent valve for venting the first pressure chamber to close the valve opening with the valve body of the control valve if the volumetric flow sensor detects that the volumetric flow exceeds a threshold value.