Abstract: A flow meter records a flow rate and/or an amount of heat of a flowing fluid. A control and evaluation unit ascertains flow rate data and the fitting-dependent direction of through flow is automatically ascertained. A temperature measuring device has first and second temperature sensors for ascertaining a temperature difference between a feed temperature in the feed and a return temperature in the return. The fitting location of the first and second temperature sensors in the feed or the return is automatically ascertained by the control and evaluation unit on the basis of the temperature difference. The control and evaluation unit is automatically configured during first-time or re-installation of the flow meter such that the direction of flow through the meter is adapted to the fitted direction of through flow and/or the temperature sensors are assigned to the feed and the return, respectively.

Abstract: A flow meter records a flow rate and/or an amount of heat of a flowing fluid. A control and evaluation unit ascertains flow rate data and the fitting-dependent direction of through flow is automatically ascertained. A temperature measuring device has first and second temperature sensors for ascertaining a temperature difference between a feed temperature in the feed and a return temperature in the return. The fitting location of the first and second temperature sensors in the feed or the return is automatically ascertained by the control and evaluation unit on the basis of the temperature difference. The control and evaluation unit is automatically configured during first-time or re-installation of the flow meter such that the direction of flow through the meter is adapted to the fitted direction of through flow and/or the temperature sensors are assigned to the feed and the return, respectively.

Abstract: There is provided a control device for a gas burner used for gas cookers, in which the gas burner is connected to a flame monitoring device. The flame monitoring device has a timing device (11) which regulates a closing mechanism of a gas valve (7) or a gas control unit (2) in accordance with a predetermined switch-on time and/or a predetermined switch-off time. In that arrangement the control device (11) can act directly on the gas valve (7). It can however also act on an electromechanical relay (20) or an electro-hydraulic relay (21) which are each connected to a respective bimetal control device of the flame monitoring device.