A further force measuring instrument from the WIKA product family is the welding tong test set, the FSK01 series . The welding tongs test set is used, for example, in the automotive industry, where welding robots are often used and, in addition to the welding time, the force in the process is also very important. For spot welding equipment, the FSK01 mobile force measuring instrument is used to check the electrode forces. At regular intervals, the electrode forces are simply measured with the FSK01 by holding it between the electrodes for the welding process. With the help of the reading instrument included, the measured value can be checked immediately on-site and adjusted if necessary, which drastically increases the service life of the welding equipment and guarantees process reliability. The check does not interfere with the manufacturing process since the procedure takes very little time. The FSK01 force measuring instrument is available in different measuring ranges of 1 kN, 10 kN and 20 kN. Force transducer and display instrument are supplied in a practical test-set case. If the checks are performed on a regular basis and frequently, the force measuring instrument is also offered as a stationary test device. In this case, the test set is installed within the operating radius of the welding robots. A controller ensures that the device is approached regularly and the forces being applied are checked.