Test device for a modular magnetic-inductive flowmeter, test method for such a test device, test device for a monolithic magnetic-inductive flowmeter, and test method for such a test device

A test device for a monolithic magnetic-inductive flowmeter, wherein the monolithic magnetic-inductive flowmeter to be tested includes a coil, a controller and a measuring tube with two measuring electrodes, wherein each of the measuring electrodes is connected to the controller via a respective measuring line, wherein the coil is designed to generate a magnetic field in a medium in the measuring tube, the measuring electrodes are designed to tap a measuring voltage in the medium generated by a flow of the medium in the magnetic field, and the controller is designed to determine a flow rate of the medium using the measuring voltage transmitted via the measuring lines, the test device comprising:

• a test controller;
• and
• a magnetic field sensor;
• wherein the test device is designed to arrange the magnetic field sensor in the magnetic field;
• wherein at least one setpoint value of at least one variable of the magnetic field is stored in the test controller;
• wherein the test controller is designed using the magnetic field sensor for measuring at least one actual value of the at least one variable of the magnetic field, for determining a deviation of the at least one actual value from the at least one setpoint value and for displaying the deviation;
• and
• wherein the test controller is reversibly connectable to the measuring electrodes without being damaged and the test controller is designed to supply a test voltage between the first terminal and the second terminal.

A test method for a test device for a modular magnetic-inductive flowmeter, wherein the modular magnetic-inductive flowmeter to be tested includes a coil, a controller and a measuring module receptacle for a measuring module, wherein the measuring module receptacle has a first terminal and a second terminal and the first terminal and the second terminal are each connected to the controller via a measuring line, wherein the measuring module has a first terminal, a second terminal and a measuring tube with two measuring electrodes, wherein, by inserting the measuring module into the measuring module receptacle, on the one hand the first terminals and on the other hand the second terminals can each be connected to one another, wherein, when the measuring module is inserted, the coil is designed to generate a magnetic field in a medium in the measuring tube, the measuring electrodes are designed to tap a measuring voltage in the medium generated by a flow of the medium in the magnetic field, and the controller is designed to determine a flow rate of the medium using the measuring voltage transmitted via the first terminals and second terminals and the measuring lines, wherein the test device includes a test controller and a test measuring module for the measuring module receptacle, wherein the test measuring module has a holder with a magnetic field sensor, the method comprising:

• storing, by the test controller, at least one setpoint value of at least one variable of the magnetic field;
• inserting the test measuring module;
• generating, by the coil, the magnetic field by the coil;
• measuring, by the test controller using the magnetic field sensor, at least one actual value of the at least one variable of the magnetic field;
• and
• determining and displaying a deviation of the at least one actual value from the at least one setpoint value;
• wherein the test measuring module has a first terminal and a second terminal and the first terminal and the second terminal are each connected to the test controller;
• wherein, by inserting the test measuring module, the first terminals, on the one hand, and the second terminals, on the other hand, are each connectable to one another;
• and
• wherein the test controller is designed to supply a test voltage between the first terminal and the second terminal.

A test method for a test device for a monolithic magnetic-inductive flowmeter, wherein the monolithic magnetic-inductive flowmeter to be tested comprises a coil, a controller, and a measuring tube having two measuring electrodes, wherein each of the measuring electrodes is connected to the controller via a respective measuring line, wherein the coil is designed to generate a magnetic field in a medium in the measuring tube, the measuring electrodes are designed to tap a measuring voltage in the medium generated by flowing the medium in the magnetic field, and the controller is designed to determine a flow rate of the medium using the measuring voltage transmitted via the measuring lines, wherein the test device comprises a test controller and a magnetic field sensor, wherein the test controller is designed to arrange the magnetic field sensor in the magnetic field, the method comprising:

• storing, by the test controller, at least one setpoint value of at least one variable of the magnetic field;
• subsequently generating, by the coil, the magnetic field;
• measuring, by the test controller using the magnetic field sensor, at least one actual value of the at least one variable of the magnetic field;
• and
• determining and displaying a deviation of the at least one actual value from the at least one setpoint value;
• wherein the test controller is reversibly connectable to the measuring electrodes without being damaged and the test controller is designed to supply a test voltage between the first terminal and the second terminal.