| 摘要 |
In the process, after a switch (12) has been operated, a pulse-shaped HF working current (I0) is sent in the conventional way from one active electrode (14) through the body (16) to be treated to the neutral electrode (18). In order to locate undesired induction current paths (I1, I2), in the main patent it is provided that, after the switch (12) has been operated and before the HF working current (I0) is sent out, an HF measurement current pulse (Iz) of specified amplitude (Iza) and specified frequency (fz) is conducted into the active electrode (14) and compared with respect to amplitude (I'za) with the resulting HF measurement current pulse (I'z) picked up by the neutral electrode. As a function of the amplitude comparison, a release signal (g, h) is formed, for example to release the HF working current (I0) or as a warning signal for a warning device (48). According to the invention, the difference between the currents (Iza - I'za) is compared with a specified limit value (P). The comparison gives the release signal (g, h). <IMAGE>
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