Abstract: A field measuring device includes a sensor, a measuring transducer, and interface electronics. The interface electronics include a measuring and control device, and first and second terminals for connecting an external electrical device. A current controller and a current measuring device are connected in series in a terminal current path between the first and second terminals. The interface electronics has a voltage source that can be switched on in the terminal current path and disconnected from the terminal current path, so that the voltage source can drive a current in the terminal current path in the switched-on state and in the case of a connected external electrical device. The measuring and control device actuates and reads the current controller, the current measuring device, and the voltage source such that a current signal is output or input via the first and second terminals when an external device is connected.

Abstract: A field measuring device includes a sensor, a measuring transducer, and interface electronics. The interface electronics include a measuring and control device, and first and second terminals for connecting an external electrical device. A current controller and a current measuring device are connected in series in a terminal current path between the first and second terminals. The interface electronics has a voltage source that can be switched on in the terminal current path and disconnected from the terminal current path, so that the voltage source can drive a current in the terminal current path in the switched-on state and in the case of a connected external electrical device. The measuring and control device actuates and reads the current controller, the current measuring device, and the voltage source such that a current signal is output or input via the first and second terminals when an external device is connected.

Abstract: A measuring arrangement for determining at least one measured variable with a sensor device (2), a signal outlet for outputting of an output signal and a current-adjusting device for adjusting the current of the output signal provides a measuring arrangement whose power consumption is at a maximum for preferably all states of operation. The object is obtained the measuring arrangement that a load current device and a regulating device are provided. Here, the regulating device controls the load current device based on a voltage drop via the current-adjusting device (4).

Abstract: A method for generating an output signal and measuring arrangement for determining at least one measured variable use at least one sensor device (2) and at least one signal output (3) for outputting at least one output signal, wherein the output signal transmits information about the measured variable and/or a state of the measuring arrangement using at least one predetermined value of the current. The measuring arrangement ensures reliable outputting of an error signal indicating the presence of an erroneous state is achieved in that a first adjusting unit (4) and a second adjusting unit (5) are provided that set the value of the current of the output signal to a predetermined desired value. The first adjusting unit (4) sets a fixed current value and the second adjusting unit (5) sets a variable current value.

Abstract: A measuring arrangement for determining at least one measured variable with a sensor device (2), a signal outlet for outputting of an output signal and a current-adjusting device for adjusting the current of the output signal provides a measuring arrangement whose power consumption is at a maximum for preferably all states of operation. The object is obtained the measuring arrangement that a load current device and a regulating device are provided. Here, the regulating device controls the load current device based on a voltage drop via the current-adjusting device (4).

Abstract: A method for generating an output signal and measuring arrangement for determining at least one measured variable use at least one sensor device (2) and at least one signal output (3) for outputting at least one output signal, wherein the output signal transmits information about the measured variable and/or a state of the measuring arrangement using at least one predetermined value of the current. The measuring arrangement ensures reliable outputting of an error signal indicating the presence of an erroneous state is achieved in that a first adjusting unit (4) and a second adjusting unit (5) are provided that set the value of the current of the output signal to a predetermined desired value. The first adjusting unit (4) sets a fixed current value and the second adjusting unit (5) sets a variable current value.