Orbital welding device with simplified handling

An orbital welding device, the orbital welding device having a welding current source in a welding current source housing and a base controller therein or thereon and having an orbital welding head, which is separate from the welding current source housing and is connected to the welding current source by means of a cable, the orbital welding head having a pipe mount and a welding electrode holder, which is mounted rotatably with respect to the pipe mount and is intended for holding a welding electrode, the orbital welding device having a motor, which is configured to drive the welding electrode holder and thus turn it with respect to the pipe mount, the orbital welding head having a chamber for shielding gas, which is configured to surround a welding electrode of the orbital welding head and substantially seal it off from the outside during a welding process, the orbital welding head having an electrical circuit,

• wherein the electrical circuit is connected to a memory device, the electrical circuit being configured to store a loading value in the memory device,
• the base controller or the electrical circuit, being configured to carry out a calibrating run of the motor and thereby generate the calibrating value, the calibrating run comprising:
• activating the motor with a defined voltage u1;
• detecting a specific first angular position φ1 of the motor or of the welding electrode holder or of a gear part and starting a time measurement at t1;
• detecting a specific second angular position φ2 of the motor or of the welding electrode holder or of a gear part and stopping the time measurement at t2;
• and
• calculating a parameter p as the calibrating value for converting the motor input voltage u1 into the angular velocity ω1 of the motor or of the welding electrode holder or of a gear part in dependence on φ1, φ2, t1 and t2.